[v5.15] KASAN: slab-out-of-bounds Read in nilfs_iget_test
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syzbot
Aug 28, 2023, 5:58:44 AM8/28/23
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 5ddfe5cc8716 Linux 5.15.128
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=16a038c0680000
kernel config: https://syzkaller.appspot.com/x/.config?x=1b6ad98d397fbe23
dashboard link: https://syzkaller.appspot.com/bug?extid=7532923e7e9383835435
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/9a542b09fbaf/disk-5ddfe5cc.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/4452fc1a4542/vmlinux-5ddfe5cc.xz
kernel image: https://storage.googleapis.com/syzbot-assets/90dc6d0c61df/bzImage-5ddfe5cc.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+753292...@syzkaller.appspotmail.com
loop3: detected capacity change from 0 to 8192
==================================================================
BUG: KASAN: slab-out-of-bounds in nilfs_iget_test+0xa1/0x320 fs/nilfs2/inode.c:548
Read of size 8 at addr ffff88807ed2c278 by task syz-executor.3/26133
CPU: 1 PID: 26133 Comm: syz-executor.3 Not tainted 5.15.128-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
print_address_description+0x63/0x3b0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:434 [inline]
kasan_report+0x16b/0x1c0 mm/kasan/report.c:451
nilfs_iget_test+0xa1/0x320 fs/nilfs2/inode.c:548
find_inode+0x16b/0x430 fs/inode.c:834
ilookup5_nowait fs/inode.c:1386 [inline]
ilookup5+0x9d/0x1f0 fs/inode.c:1415
iget5_locked+0x33/0x260 fs/inode.c:1196
nilfs_iget_locked+0x127/0x180 fs/nilfs2/inode.c:609
nilfs_dat_read+0xbb/0x300 fs/nilfs2/dat.c:490
nilfs_load_super_root fs/nilfs2/the_nilfs.c:120 [inline]
load_nilfs+0x3e7/0xe90 fs/nilfs2/the_nilfs.c:301
nilfs_fill_super+0x2ca/0x660 fs/nilfs2/super.c:1090
nilfs_mount+0x679/0x9a0 fs/nilfs2/super.c:1347
legacy_get_tree+0xeb/0x180 fs/fs_context.c:611
vfs_get_tree+0x88/0x270 fs/super.c:1517
do_new_mount+0x28b/0xae0 fs/namespace.c:2994
do_mount fs/namespace.c:3337 [inline]
__do_sys_mount fs/namespace.c:3545 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3522
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f9464a571ea
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9462fd6ee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f9462fd6f80 RCX: 00007f9464a571ea
RDX: 0000000020001600 RSI: 0000000020001640 RDI: 00007f9462fd6f40
RBP: 0000000020001600 R08: 00007f9462fd6f80 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020001640
R13: 00007f9462fd6f40 R14: 00000000000015ce R15: 0000000020001680
</TASK>
Allocated by task 21335:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
__kasan_slab_alloc+0x8e/0xc0 mm/kasan/common.c:467
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x53/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3220 [inline]
slab_alloc mm/slub.c:3228 [inline]
kmem_cache_alloc+0xf3/0x280 mm/slub.c:3233
f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2644 [inline]
f2fs_alloc_inode+0x15d/0x5b0 fs/f2fs/super.c:1350
alloc_inode fs/inode.c:236 [inline]
iget_locked+0x194/0x7f0 fs/inode.c:1244
f2fs_iget+0x52/0x49c0 fs/f2fs/inode.c:489
f2fs_fill_super+0x6569/0x8350 fs/f2fs/super.c:4230
mount_bdev+0x2c9/0x3f0 fs/super.c:1387
legacy_get_tree+0xeb/0x180 fs/fs_context.c:611
vfs_get_tree+0x88/0x270 fs/super.c:1517
do_new_mount+0x28b/0xae0 fs/namespace.c:2994
do_mount fs/namespace.c:3337 [inline]
__do_sys_mount fs/namespace.c:3545 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3522
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Last potentially related work creation:
kasan_save_stack+0x36/0x60 mm/kasan/common.c:38
kasan_record_aux_stack+0xba/0x100 mm/kasan/generic.c:348
__call_rcu kernel/rcu/tree.c:2994 [inline]
call_rcu+0x1c4/0xa70 kernel/rcu/tree.c:3074
dispose_list fs/inode.c:620 [inline]
evict_inodes+0x601/0x6a0 fs/inode.c:670
generic_shutdown_super+0x99/0x2c0 fs/super.c:454
kill_block_super+0x7a/0xe0 fs/super.c:1414
kill_f2fs_super+0x2ff/0x3c0 fs/f2fs/super.c:4501
deactivate_locked_super+0xa0/0x110 fs/super.c:335
cleanup_mnt+0x44e/0x500 fs/namespace.c:1143
task_work_run+0x129/0x1a0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:175
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:208
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x5d/0x250 kernel/entry/common.c:301
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Second to last potentially related work creation:
kasan_save_stack+0x36/0x60 mm/kasan/common.c:38
kasan_record_aux_stack+0xba/0x100 mm/kasan/generic.c:348
__call_rcu kernel/rcu/tree.c:2994 [inline]
call_rcu+0x1c4/0xa70 kernel/rcu/tree.c:3074
dispose_list fs/inode.c:620 [inline]
evict_inodes+0x601/0x6a0 fs/inode.c:670
generic_shutdown_super+0x99/0x2c0 fs/super.c:454
kill_block_super+0x7a/0xe0 fs/super.c:1414
kill_f2fs_super+0x2ff/0x3c0 fs/f2fs/super.c:4501
deactivate_locked_super+0xa0/0x110 fs/super.c:335
cleanup_mnt+0x44e/0x500 fs/namespace.c:1143
task_work_run+0x129/0x1a0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:175
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:208
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x5d/0x250 kernel/entry/common.c:301
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x61/0xcb
The buggy address belongs to the object at ffff88807ed2b900
which belongs to the cache f2fs_inode_cache of size 2304
The buggy address is located 120 bytes to the right of
2304-byte region [ffff88807ed2b900, ffff88807ed2c200)
The buggy address belongs to the page:
page:ffffea0001fb4a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88807ed2df00 pfn:0x7ed28
head:ffffea0001fb4a00 order:3 compound_mapcount:0 compound_pincount:0
memcg:ffff88801f5a3c01
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 ffffea0001529400 0000000200000002 ffff888146b0a280
raw: ffff88807ed2df00 00000000800d0002 00000001ffffffff ffff88801f5a3c01
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Reclaimable, gfp_mask 0x1d2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 15498, ts 1006434905042, free_ts 1006339572561
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159
__alloc_pages+0x272/0x700 mm/page_alloc.c:5421
alloc_slab_page mm/slub.c:1775 [inline]
allocate_slab mm/slub.c:1912 [inline]
new_slab+0xbb/0x4b0 mm/slub.c:1975
___slab_alloc+0x6f6/0xe10 mm/slub.c:3008
__slab_alloc mm/slub.c:3095 [inline]
slab_alloc_node mm/slub.c:3186 [inline]
slab_alloc mm/slub.c:3228 [inline]
kmem_cache_alloc+0x18e/0x280 mm/slub.c:3233
f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2644 [inline]
f2fs_alloc_inode+0x15d/0x5b0 fs/f2fs/super.c:1350
alloc_inode fs/inode.c:236 [inline]
new_inode_pseudo+0x60/0x210 fs/inode.c:937
new_inode+0x25/0x1d0 fs/inode.c:966
f2fs_new_inode+0x117/0x1150 fs/f2fs/namei.c:35
f2fs_create+0x161/0x14a0 fs/f2fs/namei.c:357
lookup_open fs/namei.c:3392 [inline]
open_last_lookups fs/namei.c:3462 [inline]
path_openat+0x12f6/0x2f20 fs/namei.c:3669
do_filp_open+0x21c/0x460 fs/namei.c:3699
do_sys_openat2+0x13b/0x500 fs/open.c:1211
do_sys_open fs/open.c:1227 [inline]
__do_sys_open fs/open.c:1235 [inline]
__se_sys_open fs/open.c:1231 [inline]
__x64_sys_open+0x221/0x270 fs/open.c:1231
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317
free_unref_page+0x95/0x2d0 mm/page_alloc.c:3396
do_slab_free mm/slub.c:3487 [inline]
___cache_free+0xe3/0x100 mm/slub.c:3506
qlist_free_all+0x36/0x90 mm/kasan/quarantine.c:176
kasan_quarantine_reduce+0x162/0x180 mm/kasan/quarantine.c:283
__kasan_slab_alloc+0x2f/0xc0 mm/kasan/common.c:444
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x53/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3220 [inline]
kmem_cache_alloc_node+0x121/0x2c0 mm/slub.c:3256
__alloc_skb+0xdd/0x590 net/core/skbuff.c:415
alloc_skb include/linux/skbuff.h:1167 [inline]
alloc_skb_with_frags+0xa3/0x780 net/core/skbuff.c:6126
sock_alloc_send_pskb+0x915/0xa50 net/core/sock.c:2511
unix_dgram_sendmsg+0x6fd/0x2090 net/unix/af_unix.c:1812
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg net/socket.c:724 [inline]
__sys_sendto+0x564/0x720 net/socket.c:2039
__do_sys_sendto net/socket.c:2051 [inline]
__se_sys_sendto net/socket.c:2047 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2047
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Memory state around the buggy address:
ffff88807ed2c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88807ed2c180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88807ed2c200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff88807ed2c280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88807ed2c300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
---
This report is generated by a bot. It may contain errors.
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If the bug is already fixed, let syzbot know by replying with:
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If you want to overwrite bug's subsystems, reply with:
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(See the list of subsystem names on the web dashboard)
If the bug is a duplicate of another bug, reply with:
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If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: 5ddfe5cc8716 Linux 5.15.128
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=16a038c0680000
kernel config: https://syzkaller.appspot.com/x/.config?x=1b6ad98d397fbe23
dashboard link: https://syzkaller.appspot.com/bug?extid=7532923e7e9383835435
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/9a542b09fbaf/disk-5ddfe5cc.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/4452fc1a4542/vmlinux-5ddfe5cc.xz
kernel image: https://storage.googleapis.com/syzbot-assets/90dc6d0c61df/bzImage-5ddfe5cc.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+753292...@syzkaller.appspotmail.com
loop3: detected capacity change from 0 to 8192
==================================================================
BUG: KASAN: slab-out-of-bounds in nilfs_iget_test+0xa1/0x320 fs/nilfs2/inode.c:548
Read of size 8 at addr ffff88807ed2c278 by task syz-executor.3/26133
CPU: 1 PID: 26133 Comm: syz-executor.3 Not tainted 5.15.128-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
print_address_description+0x63/0x3b0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:434 [inline]
kasan_report+0x16b/0x1c0 mm/kasan/report.c:451
nilfs_iget_test+0xa1/0x320 fs/nilfs2/inode.c:548
find_inode+0x16b/0x430 fs/inode.c:834
ilookup5_nowait fs/inode.c:1386 [inline]
ilookup5+0x9d/0x1f0 fs/inode.c:1415
iget5_locked+0x33/0x260 fs/inode.c:1196
nilfs_iget_locked+0x127/0x180 fs/nilfs2/inode.c:609
nilfs_dat_read+0xbb/0x300 fs/nilfs2/dat.c:490
nilfs_load_super_root fs/nilfs2/the_nilfs.c:120 [inline]
load_nilfs+0x3e7/0xe90 fs/nilfs2/the_nilfs.c:301
nilfs_fill_super+0x2ca/0x660 fs/nilfs2/super.c:1090
nilfs_mount+0x679/0x9a0 fs/nilfs2/super.c:1347
legacy_get_tree+0xeb/0x180 fs/fs_context.c:611
vfs_get_tree+0x88/0x270 fs/super.c:1517
do_new_mount+0x28b/0xae0 fs/namespace.c:2994
do_mount fs/namespace.c:3337 [inline]
__do_sys_mount fs/namespace.c:3545 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3522
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f9464a571ea
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9462fd6ee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f9462fd6f80 RCX: 00007f9464a571ea
RDX: 0000000020001600 RSI: 0000000020001640 RDI: 00007f9462fd6f40
RBP: 0000000020001600 R08: 00007f9462fd6f80 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020001640
R13: 00007f9462fd6f40 R14: 00000000000015ce R15: 0000000020001680
</TASK>
Allocated by task 21335:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
__kasan_slab_alloc+0x8e/0xc0 mm/kasan/common.c:467
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x53/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3220 [inline]
slab_alloc mm/slub.c:3228 [inline]
kmem_cache_alloc+0xf3/0x280 mm/slub.c:3233
f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2644 [inline]
f2fs_alloc_inode+0x15d/0x5b0 fs/f2fs/super.c:1350
alloc_inode fs/inode.c:236 [inline]
iget_locked+0x194/0x7f0 fs/inode.c:1244
f2fs_iget+0x52/0x49c0 fs/f2fs/inode.c:489
f2fs_fill_super+0x6569/0x8350 fs/f2fs/super.c:4230
mount_bdev+0x2c9/0x3f0 fs/super.c:1387
legacy_get_tree+0xeb/0x180 fs/fs_context.c:611
vfs_get_tree+0x88/0x270 fs/super.c:1517
do_new_mount+0x28b/0xae0 fs/namespace.c:2994
do_mount fs/namespace.c:3337 [inline]
__do_sys_mount fs/namespace.c:3545 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3522
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Last potentially related work creation:
kasan_save_stack+0x36/0x60 mm/kasan/common.c:38
kasan_record_aux_stack+0xba/0x100 mm/kasan/generic.c:348
__call_rcu kernel/rcu/tree.c:2994 [inline]
call_rcu+0x1c4/0xa70 kernel/rcu/tree.c:3074
dispose_list fs/inode.c:620 [inline]
evict_inodes+0x601/0x6a0 fs/inode.c:670
generic_shutdown_super+0x99/0x2c0 fs/super.c:454
kill_block_super+0x7a/0xe0 fs/super.c:1414
kill_f2fs_super+0x2ff/0x3c0 fs/f2fs/super.c:4501
deactivate_locked_super+0xa0/0x110 fs/super.c:335
cleanup_mnt+0x44e/0x500 fs/namespace.c:1143
task_work_run+0x129/0x1a0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:175
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:208
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x5d/0x250 kernel/entry/common.c:301
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Second to last potentially related work creation:
kasan_save_stack+0x36/0x60 mm/kasan/common.c:38
kasan_record_aux_stack+0xba/0x100 mm/kasan/generic.c:348
__call_rcu kernel/rcu/tree.c:2994 [inline]
call_rcu+0x1c4/0xa70 kernel/rcu/tree.c:3074
dispose_list fs/inode.c:620 [inline]
evict_inodes+0x601/0x6a0 fs/inode.c:670
generic_shutdown_super+0x99/0x2c0 fs/super.c:454
kill_block_super+0x7a/0xe0 fs/super.c:1414
kill_f2fs_super+0x2ff/0x3c0 fs/f2fs/super.c:4501
deactivate_locked_super+0xa0/0x110 fs/super.c:335
cleanup_mnt+0x44e/0x500 fs/namespace.c:1143
task_work_run+0x129/0x1a0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:175
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:208
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x5d/0x250 kernel/entry/common.c:301
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x61/0xcb
The buggy address belongs to the object at ffff88807ed2b900
which belongs to the cache f2fs_inode_cache of size 2304
The buggy address is located 120 bytes to the right of
2304-byte region [ffff88807ed2b900, ffff88807ed2c200)
The buggy address belongs to the page:
page:ffffea0001fb4a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88807ed2df00 pfn:0x7ed28
head:ffffea0001fb4a00 order:3 compound_mapcount:0 compound_pincount:0
memcg:ffff88801f5a3c01
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 ffffea0001529400 0000000200000002 ffff888146b0a280
raw: ffff88807ed2df00 00000000800d0002 00000001ffffffff ffff88801f5a3c01
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Reclaimable, gfp_mask 0x1d2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 15498, ts 1006434905042, free_ts 1006339572561
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159
__alloc_pages+0x272/0x700 mm/page_alloc.c:5421
alloc_slab_page mm/slub.c:1775 [inline]
allocate_slab mm/slub.c:1912 [inline]
new_slab+0xbb/0x4b0 mm/slub.c:1975
___slab_alloc+0x6f6/0xe10 mm/slub.c:3008
__slab_alloc mm/slub.c:3095 [inline]
slab_alloc_node mm/slub.c:3186 [inline]
slab_alloc mm/slub.c:3228 [inline]
kmem_cache_alloc+0x18e/0x280 mm/slub.c:3233
f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2644 [inline]
f2fs_alloc_inode+0x15d/0x5b0 fs/f2fs/super.c:1350
alloc_inode fs/inode.c:236 [inline]
new_inode_pseudo+0x60/0x210 fs/inode.c:937
new_inode+0x25/0x1d0 fs/inode.c:966
f2fs_new_inode+0x117/0x1150 fs/f2fs/namei.c:35
f2fs_create+0x161/0x14a0 fs/f2fs/namei.c:357
lookup_open fs/namei.c:3392 [inline]
open_last_lookups fs/namei.c:3462 [inline]
path_openat+0x12f6/0x2f20 fs/namei.c:3669
do_filp_open+0x21c/0x460 fs/namei.c:3699
do_sys_openat2+0x13b/0x500 fs/open.c:1211
do_sys_open fs/open.c:1227 [inline]
__do_sys_open fs/open.c:1235 [inline]
__se_sys_open fs/open.c:1231 [inline]
__x64_sys_open+0x221/0x270 fs/open.c:1231
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317
free_unref_page+0x95/0x2d0 mm/page_alloc.c:3396
do_slab_free mm/slub.c:3487 [inline]
___cache_free+0xe3/0x100 mm/slub.c:3506
qlist_free_all+0x36/0x90 mm/kasan/quarantine.c:176
kasan_quarantine_reduce+0x162/0x180 mm/kasan/quarantine.c:283
__kasan_slab_alloc+0x2f/0xc0 mm/kasan/common.c:444
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x53/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3220 [inline]
kmem_cache_alloc_node+0x121/0x2c0 mm/slub.c:3256
__alloc_skb+0xdd/0x590 net/core/skbuff.c:415
alloc_skb include/linux/skbuff.h:1167 [inline]
alloc_skb_with_frags+0xa3/0x780 net/core/skbuff.c:6126
sock_alloc_send_pskb+0x915/0xa50 net/core/sock.c:2511
unix_dgram_sendmsg+0x6fd/0x2090 net/unix/af_unix.c:1812
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg net/socket.c:724 [inline]
__sys_sendto+0x564/0x720 net/socket.c:2039
__do_sys_sendto net/socket.c:2051 [inline]
__se_sys_sendto net/socket.c:2047 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2047
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Memory state around the buggy address:
ffff88807ed2c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88807ed2c180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88807ed2c200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff88807ed2c280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88807ed2c300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
---
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syzbot
Jan 15, 2024, 7:29:12 AMJan 15
to syzkaller...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
Crashes did not happen for a while, no reproducer and no activity.
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