Re: possible deadlock in hfs_find_init

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Desmond Cheong Zhi Xi

unread,

Jun 29, 2021, 2:56:08 AM6/29/21

to syzbot+b718ec...@syzkaller.appspotmail.com, syzkall...@googlegroups.com

#syz test:
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

Best,
Desmond

0001-hfs-add-lock-nesting-notation-to-hfs_find_init.patch

syzbot

unread,

Jun 29, 2021, 3:05:07 AM6/29/21

to desmond...@gmail.com, syzkall...@googlegroups.com

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
KASAN: use-after-free Read in hfs_bnode_read

loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
==================================================================
BUG: KASAN: use-after-free in memcpy include/linux/fortify-string.h:191 [inline]
BUG: KASAN: use-after-free in hfs_bnode_read+0xc4/0xe0 fs/hfs/bnode.c:26
Read of size 2 at addr ffff88812679bffe by task syz-executor5/4942

CPU: 0 PID: 4942 Comm: syz-executor5 Not tainted 5.13.0-syzkaller #0
hfs: get root inode failed
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x195/0x1f8 lib/dump_stack.c:120
print_address_description.constprop.0+0x1d/0x110 mm/kasan/report.c:233
hfs: unable to locate alternate MDB
__kasan_report mm/kasan/report.c:419 [inline]
kasan_report.cold+0x7b/0xd4 mm/kasan/report.c:436
check_region_inline mm/kasan/generic.c:180 [inline]
kasan_check_range+0x154/0x1b0 mm/kasan/generic.c:186
memcpy+0x24/0x60 mm/kasan/shadow.c:65
memcpy include/linux/fortify-string.h:191 [inline]
hfs_bnode_read+0xc4/0xe0 fs/hfs/bnode.c:26
hfs_bnode_read_u16 fs/hfs/bnode.c:34 [inline]
hfs_bnode_find+0x880/0xcc0 fs/hfs/bnode.c:365
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs_brec_find+0x2d8/0x540 fs/hfs/bfind.c:126
hfs_brec_read+0x27/0x120 fs/hfs/bfind.c:165
loop4: detected capacity change from 0 to 136
hfs_cat_find_brec+0x19a/0x3b0 fs/hfs/catalog.c:194
hfs: unable to locate alternate MDB
hfs_fill_super+0xc13/0x1440 fs/hfs/super.c:419
hfs: continuing without an alternate MDB
hfs: get root inode failed
mount_bdev+0x331/0x3f0 fs/super.c:1368
hfs_mount+0x35/0x40 fs/hfs/super.c:456
legacy_get_tree+0x10c/0x220 fs/fs_context.c:592
vfs_get_tree+0x93/0x300 fs/super.c:1498
do_new_mount fs/namespace.c:2905 [inline]
path_mount+0x13f5/0x20e0 fs/namespace.c:3235
do_mount fs/namespace.c:3248 [inline]
__do_sys_mount fs/namespace.c:3456 [inline]
__se_sys_mount fs/namespace.c:3433 [inline]
__x64_sys_mount+0x2b8/0x340 fs/namespace.c:3433
do_syscall_64+0x37/0xc0 arch/x86/entry/common.c:47
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x45e63a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 88 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f444ef400d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000248 RCX: 000000000045e63a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f444ef40120
RBP: 00007f444ef40120 R08: 00000000200002c0 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000003 R14: 00000000004ad5d8 R15: 0000000000000000

The buggy address belongs to the page:
page:00000000bb15e2c7 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x12679b
flags: 0x2fffc0000000000(node=0|zone=2|lastcpupid=0x3fff)
raw: 02fffc0000000000 ffffea000499d348 ffffea000499bfc8 0000000000000000
raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
ffff88812679be80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff88812679bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff88812679bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
^
ffff88812679c000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88812679c080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop4: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
loop0: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
loop4: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
loop3: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
loop0: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop4: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop5: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop1: detected capacity change from 0 to 136
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
loop0: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
loop2: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop4: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
loop1: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136
hfs: get root inode failed
loop3: detected capacity change from 0 to 136
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop3: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop4: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop4: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
loop0: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
loop3: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
loop1: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop3: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop3: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
loop5: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop1: detected capacity change from 0 to 136
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
loop4: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
hfs: get root inode failed
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop5: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
loop5: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
loop2: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop4: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
loop1: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
loop5: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop3: detected capacity change from 0 to 136
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
hfs: get root inode failed
loop1: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
loop4: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
hfs: get root inode failed
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
loop0: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
loop4: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
loop2: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
loop0: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop1: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
loop3: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop5: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop4: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: get root inode failed
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
loop2: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
loop5: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136
hfs: get root inode failed
loop1: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
loop0: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop5: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop4: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop4: detected capacity change from 0 to 136
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop5: detected capacity change from 0 to 136
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop3: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
loop4: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
loop0: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
loop3: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop4: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
loop0: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
loop4: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
loop4: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop1: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop2: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop1: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
loop4: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop5: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop1: detected capacity change from 0 to 136
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop3: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

Tested on:

commit: c54b245d Merge branch 'for-linus' of git://git.kernel.org/..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=12e7407fd00000
kernel config: https://syzkaller.appspot.com/x/.config?x=60c30f8e2191daca
dashboard link: https://syzkaller.appspot.com/bug?extid=b718ec84a87b7e73ade4
compiler:
patch: https://syzkaller.appspot.com/x/patch.diff?x=1727a060300000

Desmond Cheong Zhi Xi

unread,

Jun 29, 2021, 3:16:29 AM6/29/21

to syzbot, syzkall...@googlegroups.com

#syz test:
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

The first patch allowed an existing UAF error to be caught. Combining
the two patches together for testing.

Best,
Desmond

test.patch

syzbot

unread,

Jun 29, 2021, 3:25:08 AM6/29/21

to desmond...@gmail.com, syzkall...@googlegroups.com

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
KASAN: use-after-free Read in hfs_bnode_read

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop0: detected capacity change from 0 to 136

==================================================================
BUG: KASAN: use-after-free in memcpy include/linux/fortify-string.h:191 [inline]
BUG: KASAN: use-after-free in hfs_bnode_read+0xc4/0xe0 fs/hfs/bnode.c:26

Read of size 2 at addr ffff888125fdcffe by task syz-executor5/4634

CPU: 0 PID: 4634 Comm: syz-executor5 Not tainted 5.13.0-syzkaller #0

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x195/0x1f8 lib/dump_stack.c:120
print_address_description.constprop.0+0x1d/0x110 mm/kasan/report.c:233

__kasan_report mm/kasan/report.c:419 [inline]
kasan_report.cold+0x7b/0xd4 mm/kasan/report.c:436
check_region_inline mm/kasan/generic.c:180 [inline]
kasan_check_range+0x154/0x1b0 mm/kasan/generic.c:186
memcpy+0x24/0x60 mm/kasan/shadow.c:65
memcpy include/linux/fortify-string.h:191 [inline]
hfs_bnode_read+0xc4/0xe0 fs/hfs/bnode.c:26
hfs_bnode_read_u16 fs/hfs/bnode.c:34 [inline]
hfs_bnode_find+0x880/0xcc0 fs/hfs/bnode.c:365

hfs_brec_find+0x2d8/0x540 fs/hfs/bfind.c:126
hfs_brec_read+0x27/0x120 fs/hfs/bfind.c:165

hfs_cat_find_brec+0x19a/0x3b0 fs/hfs/catalog.c:194
hfs_fill_super+0xc13/0x1460 fs/hfs/super.c:419
mount_bdev+0x331/0x3f0 fs/super.c:1368
hfs_mount+0x35/0x40 fs/hfs/super.c:457

legacy_get_tree+0x10c/0x220 fs/fs_context.c:592
vfs_get_tree+0x93/0x300 fs/super.c:1498
do_new_mount fs/namespace.c:2905 [inline]
path_mount+0x13f5/0x20e0 fs/namespace.c:3235
do_mount fs/namespace.c:3248 [inline]
__do_sys_mount fs/namespace.c:3456 [inline]
__se_sys_mount fs/namespace.c:3433 [inline]
__x64_sys_mount+0x2b8/0x340 fs/namespace.c:3433
do_syscall_64+0x37/0xc0 arch/x86/entry/common.c:47
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x45e63a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 88 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48

RSP: 002b:00007f9404d410d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5

RAX: ffffffffffffffda RBX: 0000000020000248 RCX: 000000000045e63a

RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f9404d41120
RBP: 00007f9404d41120 R08: 00000000200002c0 R09: 0000000020000000

R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000003 R14: 00000000004ad5d8 R15: 0000000000000000

The buggy address belongs to the page:

page:00000000dadbcf3e refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x125fdc
flags: 0x2fffc0000000000(node=0|zone=2|lastcpupid=0x3fff)
raw: 02fffc0000000000 ffffea000497f748 ffffea000497f6c8 0000000000000000

raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:

ffff888125fdce80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff888125fdcf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff888125fdcf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
^
ffff888125fdd000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff888125fdd080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff

==================================================================
hfs: get root inode failed

loop2: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop2: detected capacity change from 0 to 136
hfs: get root inode failed
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop4: detected capacity change from 0 to 136

loop5: detected capacity change from 0 to 136
hfs: get root inode failed

loop3: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB

hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB

loop0: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB

loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB

hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed

loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop4: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136

loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB

loop3: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

hfs: get root inode failed
loop5: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop1: detected capacity change from 0 to 136

loop4: detected capacity change from 0 to 136
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop2: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
loop4: detected capacity change from 0 to 136

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
hfs: get root inode failed
loop1: detected capacity change from 0 to 136

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop1: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136

loop0: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed

hfs: get root inode failed
hfs: get root inode failed
loop2: detected capacity change from 0 to 136

loop5: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136

loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: get root inode failed

hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop2: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB

hfs: continuing without an alternate MDB
loop5: detected capacity change from 0 to 136

loop4: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136

hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136
hfs: get root inode failed

hfs: get root inode failed
hfs: unable to locate alternate MDB

loop5: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop3: detected capacity change from 0 to 136
hfs: get root inode failed
loop5: detected capacity change from 0 to 136

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
hfs: get root inode failed

loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136

loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed

hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop1: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136

loop0: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136

loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop3: detected capacity change from 0 to 136
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136

loop5: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB

loop2: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop3: detected capacity change from 0 to 136
hfs: get root inode failed

loop1: detected capacity change from 0 to 136
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB

hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop0: detected capacity change from 0 to 136

hfs: get root inode failed
hfs: get root inode failed
loop2: detected capacity change from 0 to 136

loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB

loop3: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop4: detected capacity change from 0 to 136

hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136

hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop3: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136

loop1: detected capacity change from 0 to 136
loop0: detected capacity change from 0 to 136

loop2: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed

hfs: get root inode failed
hfs: get root inode failed
loop0: detected capacity change from 0 to 136

loop5: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB

hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB

loop3: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB

hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop2: detected capacity change from 0 to 136

loop4: detected capacity change from 0 to 136
hfs: get root inode failed

loop3: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop5: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136

hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB

loop3: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB

loop0: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB

hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop3: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop2: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB

hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136

hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop5: detected capacity change from 0 to 136

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop3: detected capacity change from 0 to 136

loop1: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136

loop2: detected capacity change from 0 to 136
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed

loop4: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136

loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop3: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB

loop0: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB

hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop1: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop4: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136

loop2: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: get root inode failed
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop0: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop4: detected capacity change from 0 to 136

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed

loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed

loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop0: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed

loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

hfs: get root inode failed
loop5: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136

loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB

hfs: get root inode failed
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: get root inode failed

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136
hfs: get root inode failed

loop5: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB

hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed

loop0: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136

loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB

hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop2: detected capacity change from 0 to 136
hfs: get root inode failed

loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB

loop1: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
loop4: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed

hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop3: detected capacity change from 0 to 136

hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop0: detected capacity change from 0 to 136

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop5: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136

hfs: get root inode failed
hfs: get root inode failed
loop4: detected capacity change from 0 to 136

loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: continuing without an alternate MDB

hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop0: detected capacity change from 0 to 136

hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop1: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136

hfs: unable to locate alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop4: detected capacity change from 0 to 136
loop0: detected capacity change from 0 to 136

hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop5: detected capacity change from 0 to 136

hfs: unable to locate alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop3: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB

loop1: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed

loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
hfs: get root inode failed

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop5: detected capacity change from 0 to 136

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB

hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB

loop5: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed

loop0: detected capacity change from 0 to 136
hfs: get root inode failed

loop4: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136

loop5: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB

loop1: detected capacity change from 0 to 136
hfs: get root inode failed
loop3: detected capacity change from 0 to 136

hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop4: detected capacity change from 0 to 136
hfs: get root inode failed

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop1: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB

hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed

loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop1: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136

loop0: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop3: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB

hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop5: detected capacity change from 0 to 136
hfs: get root inode failed

loop2: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB

loop0: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136

hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop1: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136

loop0: detected capacity change from 0 to 136

loop3: detected capacity change from 0 to 136
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB

loop1: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed

loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop0: detected capacity change from 0 to 136

loop4: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136

loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed

loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop3: detected capacity change from 0 to 136
hfs: get root inode failed
loop0: detected capacity change from 0 to 136

hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136

loop4: detected capacity change from 0 to 136
hfs: get root inode failed

loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop3: detected capacity change from 0 to 136
hfs: get root inode failed

loop2: detected capacity change from 0 to 136
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB

loop1: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
loop5: detected capacity change from 0 to 136

hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop4: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed

loop5: detected capacity change from 0 to 136
loop3: detected capacity change from 0 to 136

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: continuing without an alternate MDB

loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed

hfs: get root inode failed
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136

hfs: continuing without an alternate MDB
loop5: detected capacity change from 0 to 136

hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed

hfs: get root inode failed
loop0: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136

loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB

loop1: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB

hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed

hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop3: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136

loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
loop4: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB

loop5: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB

loop2: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed

hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop3: detected capacity change from 0 to 136
hfs: get root inode failed
loop0: detected capacity change from 0 to 136

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop2: detected capacity change from 0 to 136
hfs: get root inode failed

loop0: detected capacity change from 0 to 136

loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop5: detected capacity change from 0 to 136
hfs: get root inode failed

hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop1: detected capacity change from 0 to 136

loop0: detected capacity change from 0 to 136
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB

hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop3: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed

loop2: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB

hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB

loop5: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB

hfs: get root inode failed
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop4: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB

loop2: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop3: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop1: detected capacity change from 0 to 136

loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
hfs: get root inode failed

loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

hfs: get root inode failed
loop4: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB

hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop2: detected capacity change from 0 to 136

hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
loop0: detected capacity change from 0 to 136

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136

hfs: get root inode failed
loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: continuing without an alternate MDB

loop1: detected capacity change from 0 to 136
hfs: get root inode failed
loop4: detected capacity change from 0 to 136

hfs: get root inode failed
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop5: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed

loop3: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop0: detected capacity change from 0 to 136
loop4: detected capacity change from 0 to 136
loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB

hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136
loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB

loop2: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB

hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed
hfs: get root inode failed

hfs: get root inode failed
loop4: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB

loop2: detected capacity change from 0 to 136
loop0: detected capacity change from 0 to 136

hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: get root inode failed

loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: get root inode failed
hfs: get root inode failed

hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
loop4: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: get root inode failed

hfs: unable to locate alternate MDB
hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB

hfs: get root inode failed
hfs: continuing without an alternate MDB

loop1: detected capacity change from 0 to 136
hfs: get root inode failed
loop2: detected capacity change from 0 to 136

loop5: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB

hfs: get root inode failed
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB
loop3: detected capacity change from 0 to 136
hfs: continuing without an alternate MDB
hfs: unable to locate alternate MDB

hfs: continuing without an alternate MDB
loop4: detected capacity change from 0 to 136
hfs: get root inode failed
hfs: get root inode failed

loop0: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
loop3: detected capacity change from 0 to 136

loop1: detected capacity change from 0 to 136
hfs: unable to locate alternate MDB

Tested on:

commit: c54b245d Merge branch 'for-linus' of git://git.kernel.org/..
git tree: upstream

console output: https://syzkaller.appspot.com/x/log.txt?x=179ba25fd00000

kernel config: https://syzkaller.appspot.com/x/.config?x=60c30f8e2191daca
dashboard link: https://syzkaller.appspot.com/bug?extid=b718ec84a87b7e73ade4
compiler:

patch: https://syzkaller.appspot.com/x/patch.diff?x=14f490fbd00000

Desmond Cheong Zhi Xi

unread,

Jun 29, 2021, 6:48:17 AM6/29/21

to syzbot, syzkall...@googlegroups.com

#syz test:
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

Best,
Desmond

test.patch

syzbot

unread,

Jun 29, 2021, 7:03:08 AM6/29/21

to desmond...@gmail.com, syzkall...@googlegroups.com

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+b718ec...@syzkaller.appspotmail.com

Tested on:

commit: c54b245d Merge branch 'for-linus' of git://git.kernel.org/..
git tree: upstream

kernel config: https://syzkaller.appspot.com/x/.config?x=60c30f8e2191daca
dashboard link: https://syzkaller.appspot.com/bug?extid=b718ec84a87b7e73ade4
compiler:

patch: https://syzkaller.appspot.com/x/patch.diff?x=126d4390300000

Note: testing is done by a robot and is best-effort only.

Desmond Cheong Zhi Xi

unread,

Jun 29, 2021, 9:59:42 AM6/29/21

to syzbot, syzkall...@googlegroups.com

#syz test:
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

Previous patch passed the repro test but doesn't produce correct behaviour.

Best,
Desmond

test.patch

syzbot

unread,

Jun 29, 2021, 10:30:09 AM6/29/21

to desmond...@gmail.com, syzkall...@googlegroups.com

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+b718ec...@syzkaller.appspotmail.com

Tested on:

commit: c54b245d Merge branch 'for-linus' of git://git.kernel.org/..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=60c30f8e2191daca
dashboard link: https://syzkaller.appspot.com/bug?extid=b718ec84a87b7e73ade4
compiler: