[syzbot] [ntfs3?] KASAN: slab-use-after-free Read in ntfs_write_bh
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syzbot
Sep 11, 2023, 7:30:00 PM9/11/23
to almaz.ale...@paragon-software.com, linux-...@vger.kernel.org, linux-...@vger.kernel.org, ll...@lists.linux.dev, nat...@kernel.org, ndesau...@google.com, nt...@lists.linux.dev, syzkall...@googlegroups.com, tr...@redhat.com
Hello,
syzbot found the following issue on:
HEAD commit: 0bb80ecc33a8 Linux 6.6-rc1
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=11d3b308680000
kernel config: https://syzkaller.appspot.com/x/.config?x=df91a3034fe3f122
dashboard link: https://syzkaller.appspot.com/bug?extid=bc79f8d1898960d41073
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/1d506cf29d25/disk-0bb80ecc.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ca5b56af4b3e/vmlinux-0bb80ecc.xz
kernel image: https://storage.googleapis.com/syzbot-assets/aa88aed611c1/bzImage-0bb80ecc.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+bc79f8...@syzkaller.appspotmail.com
==================================================================
BUG: KASAN: slab-use-after-free in ntfs_write_bh+0x49/0x7b0 fs/ntfs3/fsntfs.c:1401
Read of size 8 at addr ffff88807c08a000 by task syz-executor.0/29687
CPU: 1 PID: 29687 Comm: syz-executor.0 Not tainted 6.6.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:364 [inline]
print_report+0x163/0x540 mm/kasan/report.c:475
kasan_report+0x175/0x1b0 mm/kasan/report.c:588
ntfs_write_bh+0x49/0x7b0 fs/ntfs3/fsntfs.c:1401
mi_write+0x9b/0x200 fs/ntfs3/record.c:346
ni_write_inode+0x619/0x1080 fs/ntfs3/frecord.c:3360
write_inode fs/fs-writeback.c:1456 [inline]
__writeback_single_inode+0x69b/0xfa0 fs/fs-writeback.c:1668
writeback_single_inode+0x21b/0x790 fs/fs-writeback.c:1724
sync_inode_metadata+0xcc/0x130 fs/fs-writeback.c:2786
ntfs_set_state+0x556/0x730 fs/ntfs3/fsntfs.c:995
ntfs_create_inode+0x502/0x3b00 fs/ntfs3/inode.c:1307
ntfs_atomic_open+0x423/0x570 fs/ntfs3/namei.c:422
atomic_open fs/namei.c:3358 [inline]
lookup_open fs/namei.c:3466 [inline]
open_last_lookups fs/namei.c:3563 [inline]
path_openat+0x1044/0x3180 fs/namei.c:3793
do_filp_open+0x234/0x490 fs/namei.c:3823
do_sys_openat2+0x13e/0x1d0 fs/open.c:1422
do_sys_open fs/open.c:1437 [inline]
__do_sys_openat fs/open.c:1453 [inline]
__se_sys_openat fs/open.c:1448 [inline]
__x64_sys_openat+0x247/0x290 fs/open.c:1448
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4ee967cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f4eea3170c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f4ee979bf80 RCX: 00007f4ee967cae9
RDX: 000000000000275a RSI: 0000000020000040 RDI: ffffffffffffff9c
RBP: 00007f4ee96c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0b00000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f4ee979bf80 R15: 00007ffda859bad8
</TASK>
Allocated by task 5123:
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4f/0x70 mm/kasan/common.c:52
____kasan_kmalloc mm/kasan/common.c:374 [inline]
__kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:383
kasan_kmalloc include/linux/kasan.h:198 [inline]
__do_kmalloc_node mm/slab_common.c:1023 [inline]
__kmalloc_node_track_caller+0xb6/0x230 mm/slab_common.c:1043
kmalloc_reserve+0xf3/0x260 net/core/skbuff.c:581
__alloc_skb+0x1b1/0x420 net/core/skbuff.c:650
alloc_skb include/linux/skbuff.h:1286 [inline]
nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:748 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:805 [inline]
nsim_dev_trap_report_work+0x250/0xa90 drivers/net/netdevsim/dev.c:850
process_one_work+0x781/0x1130 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0xabf/0x1060 kernel/workqueue.c:2784
kthread+0x2b8/0x350 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Freed by task 5123:
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4f/0x70 mm/kasan/common.c:52
kasan_save_free_info+0x28/0x40 mm/kasan/generic.c:522
____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
kasan_slab_free include/linux/kasan.h:164 [inline]
slab_free_hook mm/slub.c:1800 [inline]
slab_free_freelist_hook mm/slub.c:1826 [inline]
slab_free mm/slub.c:3809 [inline]
__kmem_cache_free+0x25f/0x3b0 mm/slub.c:3822
skb_kfree_head net/core/skbuff.c:945 [inline]
skb_free_head net/core/skbuff.c:957 [inline]
skb_release_data+0x660/0x850 net/core/skbuff.c:987
skb_release_all net/core/skbuff.c:1053 [inline]
__kfree_skb net/core/skbuff.c:1067 [inline]
consume_skb+0xb3/0x150 net/core/skbuff.c:1283
nsim_dev_trap_report drivers/net/netdevsim/dev.c:821 [inline]
nsim_dev_trap_report_work+0x761/0xa90 drivers/net/netdevsim/dev.c:850
process_one_work+0x781/0x1130 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0xabf/0x1060 kernel/workqueue.c:2784
kthread+0x2b8/0x350 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
The buggy address belongs to the object at ffff88807c08a000
which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 0 bytes inside of
freed 4096-byte region [ffff88807c08a000, ffff88807c08b000)
The buggy address belongs to the physical page:
page:ffffea0001f02200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7c088
head:ffffea0001f02200 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000840 ffff888012842140 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 4483, tgid 4483 (udevd), ts 395872759792, free_ts 395835757815
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1536
prep_new_page mm/page_alloc.c:1543 [inline]
get_page_from_freelist+0x31db/0x3360 mm/page_alloc.c:3170
__alloc_pages+0x255/0x670 mm/page_alloc.c:4426
alloc_slab_page+0x6a/0x160 mm/slub.c:1870
allocate_slab mm/slub.c:2017 [inline]
new_slab+0x84/0x2f0 mm/slub.c:2070
___slab_alloc+0xade/0x1100 mm/slub.c:3223
__slab_alloc mm/slub.c:3322 [inline]
__slab_alloc_node mm/slub.c:3375 [inline]
slab_alloc_node mm/slub.c:3468 [inline]
__kmem_cache_alloc_node+0x1af/0x270 mm/slub.c:3517
__do_kmalloc_node mm/slab_common.c:1022 [inline]
__kmalloc+0xa8/0x230 mm/slab_common.c:1036
kmalloc include/linux/slab.h:603 [inline]
tomoyo_realpath_from_path+0xcf/0x5e0 security/tomoyo/realpath.c:251
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_check_open_permission+0x254/0x4e0 security/tomoyo/file.c:771
security_file_open+0x63/0xa0 security/security.c:2836
do_dentry_open+0x325/0x1430 fs/open.c:916
do_open fs/namei.c:3639 [inline]
path_openat+0x27bb/0x3180 fs/namei.c:3796
do_filp_open+0x234/0x490 fs/namei.c:3823
do_sys_openat2+0x13e/0x1d0 fs/open.c:1422
do_sys_open fs/open.c:1437 [inline]
__do_sys_openat fs/open.c:1453 [inline]
__se_sys_openat fs/open.c:1448 [inline]
__x64_sys_openat+0x247/0x290 fs/open.c:1448
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1136 [inline]
free_unref_page_prepare+0x8c3/0x9f0 mm/page_alloc.c:2312
free_unref_page+0x37/0x3f0 mm/page_alloc.c:2405
discard_slab mm/slub.c:2116 [inline]
__unfreeze_partials+0x1dc/0x220 mm/slub.c:2655
put_cpu_partial+0x116/0x180 mm/slub.c:2731
__slab_free+0x2b6/0x390 mm/slub.c:3679
qlist_free_all+0x22/0x60 mm/kasan/quarantine.c:185
kasan_quarantine_reduce+0x14b/0x160 mm/kasan/quarantine.c:292
__kasan_slab_alloc+0x23/0x70 mm/kasan/common.c:305
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook+0x6c/0x3b0 mm/slab.h:762
slab_alloc_node mm/slub.c:3478 [inline]
slab_alloc mm/slub.c:3486 [inline]
__kmem_cache_alloc_lru mm/slub.c:3493 [inline]
kmem_cache_alloc+0x123/0x300 mm/slub.c:3502
getname_flags+0xbc/0x4e0 fs/namei.c:140
user_path_at_empty+0x2e/0x180 fs/namei.c:2909
do_readlinkat+0x118/0x3b0 fs/stat.c:533
__do_sys_readlink fs/stat.c:566 [inline]
__se_sys_readlink fs/stat.c:563 [inline]
__x64_sys_readlink+0x7f/0x90 fs/stat.c:563
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Memory state around the buggy address:
ffff88807c089f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88807c089f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88807c08a000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88807c08a080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88807c08a100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the bug is already fixed, let syzbot know by replying with:
#syz fix: exact-commit-title
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:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: 0bb80ecc33a8 Linux 6.6-rc1
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=11d3b308680000
kernel config: https://syzkaller.appspot.com/x/.config?x=df91a3034fe3f122
dashboard link: https://syzkaller.appspot.com/bug?extid=bc79f8d1898960d41073
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/1d506cf29d25/disk-0bb80ecc.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ca5b56af4b3e/vmlinux-0bb80ecc.xz
kernel image: https://storage.googleapis.com/syzbot-assets/aa88aed611c1/bzImage-0bb80ecc.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+bc79f8...@syzkaller.appspotmail.com
==================================================================
BUG: KASAN: slab-use-after-free in ntfs_write_bh+0x49/0x7b0 fs/ntfs3/fsntfs.c:1401
Read of size 8 at addr ffff88807c08a000 by task syz-executor.0/29687
CPU: 1 PID: 29687 Comm: syz-executor.0 Not tainted 6.6.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:364 [inline]
print_report+0x163/0x540 mm/kasan/report.c:475
kasan_report+0x175/0x1b0 mm/kasan/report.c:588
ntfs_write_bh+0x49/0x7b0 fs/ntfs3/fsntfs.c:1401
mi_write+0x9b/0x200 fs/ntfs3/record.c:346
ni_write_inode+0x619/0x1080 fs/ntfs3/frecord.c:3360
write_inode fs/fs-writeback.c:1456 [inline]
__writeback_single_inode+0x69b/0xfa0 fs/fs-writeback.c:1668
writeback_single_inode+0x21b/0x790 fs/fs-writeback.c:1724
sync_inode_metadata+0xcc/0x130 fs/fs-writeback.c:2786
ntfs_set_state+0x556/0x730 fs/ntfs3/fsntfs.c:995
ntfs_create_inode+0x502/0x3b00 fs/ntfs3/inode.c:1307
ntfs_atomic_open+0x423/0x570 fs/ntfs3/namei.c:422
atomic_open fs/namei.c:3358 [inline]
lookup_open fs/namei.c:3466 [inline]
open_last_lookups fs/namei.c:3563 [inline]
path_openat+0x1044/0x3180 fs/namei.c:3793
do_filp_open+0x234/0x490 fs/namei.c:3823
do_sys_openat2+0x13e/0x1d0 fs/open.c:1422
do_sys_open fs/open.c:1437 [inline]
__do_sys_openat fs/open.c:1453 [inline]
__se_sys_openat fs/open.c:1448 [inline]
__x64_sys_openat+0x247/0x290 fs/open.c:1448
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4ee967cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f4eea3170c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f4ee979bf80 RCX: 00007f4ee967cae9
RDX: 000000000000275a RSI: 0000000020000040 RDI: ffffffffffffff9c
RBP: 00007f4ee96c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0b00000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f4ee979bf80 R15: 00007ffda859bad8
</TASK>
Allocated by task 5123:
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4f/0x70 mm/kasan/common.c:52
____kasan_kmalloc mm/kasan/common.c:374 [inline]
__kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:383
kasan_kmalloc include/linux/kasan.h:198 [inline]
__do_kmalloc_node mm/slab_common.c:1023 [inline]
__kmalloc_node_track_caller+0xb6/0x230 mm/slab_common.c:1043
kmalloc_reserve+0xf3/0x260 net/core/skbuff.c:581
__alloc_skb+0x1b1/0x420 net/core/skbuff.c:650
alloc_skb include/linux/skbuff.h:1286 [inline]
nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:748 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:805 [inline]
nsim_dev_trap_report_work+0x250/0xa90 drivers/net/netdevsim/dev.c:850
process_one_work+0x781/0x1130 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0xabf/0x1060 kernel/workqueue.c:2784
kthread+0x2b8/0x350 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Freed by task 5123:
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4f/0x70 mm/kasan/common.c:52
kasan_save_free_info+0x28/0x40 mm/kasan/generic.c:522
____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
kasan_slab_free include/linux/kasan.h:164 [inline]
slab_free_hook mm/slub.c:1800 [inline]
slab_free_freelist_hook mm/slub.c:1826 [inline]
slab_free mm/slub.c:3809 [inline]
__kmem_cache_free+0x25f/0x3b0 mm/slub.c:3822
skb_kfree_head net/core/skbuff.c:945 [inline]
skb_free_head net/core/skbuff.c:957 [inline]
skb_release_data+0x660/0x850 net/core/skbuff.c:987
skb_release_all net/core/skbuff.c:1053 [inline]
__kfree_skb net/core/skbuff.c:1067 [inline]
consume_skb+0xb3/0x150 net/core/skbuff.c:1283
nsim_dev_trap_report drivers/net/netdevsim/dev.c:821 [inline]
nsim_dev_trap_report_work+0x761/0xa90 drivers/net/netdevsim/dev.c:850
process_one_work+0x781/0x1130 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0xabf/0x1060 kernel/workqueue.c:2784
kthread+0x2b8/0x350 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
The buggy address belongs to the object at ffff88807c08a000
which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 0 bytes inside of
freed 4096-byte region [ffff88807c08a000, ffff88807c08b000)
The buggy address belongs to the physical page:
page:ffffea0001f02200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7c088
head:ffffea0001f02200 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000840 ffff888012842140 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 4483, tgid 4483 (udevd), ts 395872759792, free_ts 395835757815
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1536
prep_new_page mm/page_alloc.c:1543 [inline]
get_page_from_freelist+0x31db/0x3360 mm/page_alloc.c:3170
__alloc_pages+0x255/0x670 mm/page_alloc.c:4426
alloc_slab_page+0x6a/0x160 mm/slub.c:1870
allocate_slab mm/slub.c:2017 [inline]
new_slab+0x84/0x2f0 mm/slub.c:2070
___slab_alloc+0xade/0x1100 mm/slub.c:3223
__slab_alloc mm/slub.c:3322 [inline]
__slab_alloc_node mm/slub.c:3375 [inline]
slab_alloc_node mm/slub.c:3468 [inline]
__kmem_cache_alloc_node+0x1af/0x270 mm/slub.c:3517
__do_kmalloc_node mm/slab_common.c:1022 [inline]
__kmalloc+0xa8/0x230 mm/slab_common.c:1036
kmalloc include/linux/slab.h:603 [inline]
tomoyo_realpath_from_path+0xcf/0x5e0 security/tomoyo/realpath.c:251
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_check_open_permission+0x254/0x4e0 security/tomoyo/file.c:771
security_file_open+0x63/0xa0 security/security.c:2836
do_dentry_open+0x325/0x1430 fs/open.c:916
do_open fs/namei.c:3639 [inline]
path_openat+0x27bb/0x3180 fs/namei.c:3796
do_filp_open+0x234/0x490 fs/namei.c:3823
do_sys_openat2+0x13e/0x1d0 fs/open.c:1422
do_sys_open fs/open.c:1437 [inline]
__do_sys_openat fs/open.c:1453 [inline]
__se_sys_openat fs/open.c:1448 [inline]
__x64_sys_openat+0x247/0x290 fs/open.c:1448
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1136 [inline]
free_unref_page_prepare+0x8c3/0x9f0 mm/page_alloc.c:2312
free_unref_page+0x37/0x3f0 mm/page_alloc.c:2405
discard_slab mm/slub.c:2116 [inline]
__unfreeze_partials+0x1dc/0x220 mm/slub.c:2655
put_cpu_partial+0x116/0x180 mm/slub.c:2731
__slab_free+0x2b6/0x390 mm/slub.c:3679
qlist_free_all+0x22/0x60 mm/kasan/quarantine.c:185
kasan_quarantine_reduce+0x14b/0x160 mm/kasan/quarantine.c:292
__kasan_slab_alloc+0x23/0x70 mm/kasan/common.c:305
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook+0x6c/0x3b0 mm/slab.h:762
slab_alloc_node mm/slub.c:3478 [inline]
slab_alloc mm/slub.c:3486 [inline]
__kmem_cache_alloc_lru mm/slub.c:3493 [inline]
kmem_cache_alloc+0x123/0x300 mm/slub.c:3502
getname_flags+0xbc/0x4e0 fs/namei.c:140
user_path_at_empty+0x2e/0x180 fs/namei.c:2909
do_readlinkat+0x118/0x3b0 fs/stat.c:533
__do_sys_readlink fs/stat.c:566 [inline]
__se_sys_readlink fs/stat.c:563 [inline]
__x64_sys_readlink+0x7f/0x90 fs/stat.c:563
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Memory state around the buggy address:
ffff88807c089f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88807c089f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88807c08a000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88807c08a080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88807c08a100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the bug is already fixed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite bug's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the bug is a duplicate of another bug, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot
Sep 26, 2023, 4:27:39 AM9/26/23
to almaz.ale...@paragon-software.com, linux-...@vger.kernel.org, linux-...@vger.kernel.org, ll...@lists.linux.dev, nat...@kernel.org, ndesau...@google.com, nt...@lists.linux.dev, syzkall...@googlegroups.com, tr...@redhat.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 6465e260f487 Linux 6.6-rc3
git tree: upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=13d78ffe680000
kernel config: https://syzkaller.appspot.com/x/.config?x=bb54ecdfa197f132
dashboard link: https://syzkaller.appspot.com/bug?extid=bc79f8d1898960d41073
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14aa4e32680000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=171787b6680000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/3b1a49bae59d/disk-6465e260.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/f3226aa54969/vmlinux-6465e260.xz
kernel image: https://storage.googleapis.com/syzbot-assets/225ee050173e/bzImage-6465e260.xz
mounted in repro #1: https://storage.googleapis.com/syzbot-assets/c217b59cb3bd/mount_0.gz
mounted in repro #2: https://storage.googleapis.com/syzbot-assets/11dc567a19b3/mount_2.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+bc79f8...@syzkaller.appspotmail.com
ntfs3: loop0: ino=0, attr_set_size
ntfs3: loop0: Mark volume as dirty due to NTFS errors
==================================================================
BUG: KASAN: slab-use-after-free in ntfs_write_bh+0x6b9/0x6e0 fs/ntfs3/fsntfs.c:1401
Read of size 8 at addr ffff888016aaa000 by task syz-executor201/5400
CPU: 1 PID: 5400 Comm: syz-executor201 Not tainted 6.6.0-rc3-syzkaller #0
print_address_description mm/kasan/report.c:364 [inline]
print_report+0xc4/0x620 mm/kasan/report.c:475
kasan_report+0xda/0x110 mm/kasan/report.c:588
ntfs_write_bh+0x6b9/0x6e0 fs/ntfs3/fsntfs.c:1401
mi_write+0xc0/0x1e0 fs/ntfs3/record.c:346
ni_write_inode+0x1025/0x2810 fs/ntfs3/frecord.c:3360
write_inode fs/fs-writeback.c:1456 [inline]
__writeback_single_inode+0xa81/0xe70 fs/fs-writeback.c:1668
writeback_single_inode+0x2af/0x590 fs/fs-writeback.c:1724
sync_inode_metadata+0xa5/0xe0 fs/fs-writeback.c:2786
ntfs_set_state+0x3f0/0x6e0 fs/ntfs3/fsntfs.c:995
attr_set_size+0x139c/0x2ca0 fs/ntfs3/attrib.c:866
ntfs_extend_mft+0x29f/0x430 fs/ntfs3/fsntfs.c:527
ntfs_look_free_mft+0x777/0xdd0 fs/ntfs3/fsntfs.c:590
ni_create_attr_list+0x937/0x1520 fs/ntfs3/frecord.c:876
ni_ins_attr_ext+0x23f/0xaf0 fs/ntfs3/frecord.c:974
ni_insert_attr+0x310/0x870 fs/ntfs3/frecord.c:1141
ni_insert_resident+0xd2/0x3a0 fs/ntfs3/frecord.c:1525
ntfs_set_ea+0xf46/0x13d0 fs/ntfs3/xattr.c:437
ntfs_save_wsl_perm+0x134/0x3d0 fs/ntfs3/xattr.c:946
ntfs3_setattr+0x92e/0xb20 fs/ntfs3/file.c:708
notify_change+0x742/0x11c0 fs/attr.c:499
chown_common+0x596/0x660 fs/open.c:783
do_fchownat+0x140/0x1f0 fs/open.c:814
__do_sys_lchown fs/open.c:839 [inline]
__se_sys_lchown fs/open.c:837 [inline]
__x64_sys_lchown+0x7e/0xc0 fs/open.c:837
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0958017a59
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f0957fd4218 EFLAGS: 00000246 ORIG_RAX: 000000000000005e
RAX: ffffffffffffffda RBX: 00007f09580be6a8 RCX: 00007f0958017a59
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007f09580be6a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f09580be6ac
R13: 00007f095808b4ac R14: 0032656c69662f2e R15: 00007f095806c0c0
</TASK>
Allocated by task 5038:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
____kasan_kmalloc mm/kasan/common.c:374 [inline]
__kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:383
kmalloc include/linux/slab.h:603 [inline]
tomoyo_realpath_from_path+0xb9/0x710 security/tomoyo/realpath.c:251
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_check_open_permission+0x2a3/0x3b0 security/tomoyo/file.c:771
tomoyo_file_open security/tomoyo/tomoyo.c:332 [inline]
tomoyo_file_open+0xa8/0xd0 security/tomoyo/tomoyo.c:327
security_file_open+0x6a/0xe0 security/security.c:2836
do_dentry_open+0x538/0x1730 fs/open.c:916
do_open fs/namei.c:3639 [inline]
path_openat+0x19af/0x29c0 fs/namei.c:3796
do_filp_open+0x1de/0x430 fs/namei.c:3823
do_sys_openat2+0x176/0x1e0 fs/open.c:1422
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Freed by task 5038:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522
____kasan_slab_free mm/kasan/common.c:236 [inline]
____kasan_slab_free+0x15b/0x1b0 mm/kasan/common.c:200
slab_free mm/slub.c:3809 [inline]
__kmem_cache_free+0xb8/0x2f0 mm/slub.c:3822
tomoyo_realpath_from_path+0x1a6/0x710 security/tomoyo/realpath.c:286
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_check_open_permission+0x2a3/0x3b0 security/tomoyo/file.c:771
tomoyo_file_open security/tomoyo/tomoyo.c:332 [inline]
tomoyo_file_open+0xa8/0xd0 security/tomoyo/tomoyo.c:327
security_file_open+0x6a/0xe0 security/security.c:2836
do_dentry_open+0x538/0x1730 fs/open.c:916
do_open fs/namei.c:3639 [inline]
path_openat+0x19af/0x29c0 fs/namei.c:3796
do_filp_open+0x1de/0x430 fs/namei.c:3823
do_sys_openat2+0x176/0x1e0 fs/open.c:1422
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
The buggy address belongs to the object at ffff888016aaa000
The buggy address belongs to the physical page:
page:ffffea00005aaa00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x16aa8
head:ffffea00005aaa00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x2cf/0x340 mm/page_alloc.c:1536
prep_new_page mm/page_alloc.c:1543 [inline]
get_page_from_freelist+0xee0/0x2f20 mm/page_alloc.c:3170
__alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4426
alloc_page_interleave+0x1e/0x250 mm/mempolicy.c:2131
alloc_pages+0x22a/0x270 mm/mempolicy.c:2293
alloc_slab_page mm/slub.c:1870 [inline]
allocate_slab+0x251/0x380 mm/slub.c:2017
new_slab mm/slub.c:2070 [inline]
___slab_alloc+0x8c7/0x1580 mm/slub.c:3223
__slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3322
kmalloc_trace+0x25/0xe0 mm/slab_common.c:1114
kmalloc include/linux/slab.h:599 [inline]
kzalloc include/linux/slab.h:720 [inline]
kobject_uevent_env+0x24c/0x1800 lib/kobject_uevent.c:524
kset_register+0x1b6/0x2a0 lib/kobject.c:873
class_register+0x1cb/0x330 drivers/base/class.c:205
ib_core_init+0xb9/0x300 drivers/infiniband/core/device.c:2780
do_one_initcall+0x117/0x630 init/main.c:1232
do_initcall_level init/main.c:1294 [inline]
do_initcalls init/main.c:1310 [inline]
do_basic_setup init/main.c:1329 [inline]
kernel_init_freeable+0x5c2/0x900 init/main.c:1547
page_owner free stack trace missing
Memory state around the buggy address:
ffff888016aa9f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff888016aa9f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888016aaa000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888016aaa080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888016aaa100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
HEAD commit: 6465e260f487 Linux 6.6-rc3
git tree: upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=13d78ffe680000
kernel config: https://syzkaller.appspot.com/x/.config?x=bb54ecdfa197f132
dashboard link: https://syzkaller.appspot.com/bug?extid=bc79f8d1898960d41073
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14aa4e32680000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=171787b6680000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/3b1a49bae59d/disk-6465e260.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/f3226aa54969/vmlinux-6465e260.xz
kernel image: https://storage.googleapis.com/syzbot-assets/225ee050173e/bzImage-6465e260.xz
mounted in repro #1: https://storage.googleapis.com/syzbot-assets/c217b59cb3bd/mount_0.gz
mounted in repro #2: https://storage.googleapis.com/syzbot-assets/11dc567a19b3/mount_2.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+bc79f8...@syzkaller.appspotmail.com
ntfs3: loop0: Mark volume as dirty due to NTFS errors
==================================================================
BUG: KASAN: slab-use-after-free in ntfs_write_bh+0x6b9/0x6e0 fs/ntfs3/fsntfs.c:1401
Read of size 8 at addr ffff888016aaa000 by task syz-executor201/5400
CPU: 1 PID: 5400 Comm: syz-executor201 Not tainted 6.6.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
print_address_description mm/kasan/report.c:364 [inline]
print_report+0xc4/0x620 mm/kasan/report.c:475
kasan_report+0xda/0x110 mm/kasan/report.c:588
ntfs_write_bh+0x6b9/0x6e0 fs/ntfs3/fsntfs.c:1401
mi_write+0xc0/0x1e0 fs/ntfs3/record.c:346
ni_write_inode+0x1025/0x2810 fs/ntfs3/frecord.c:3360
write_inode fs/fs-writeback.c:1456 [inline]
__writeback_single_inode+0xa81/0xe70 fs/fs-writeback.c:1668
writeback_single_inode+0x2af/0x590 fs/fs-writeback.c:1724
sync_inode_metadata+0xa5/0xe0 fs/fs-writeback.c:2786
ntfs_set_state+0x3f0/0x6e0 fs/ntfs3/fsntfs.c:995
attr_set_size+0x139c/0x2ca0 fs/ntfs3/attrib.c:866
ntfs_extend_mft+0x29f/0x430 fs/ntfs3/fsntfs.c:527
ntfs_look_free_mft+0x777/0xdd0 fs/ntfs3/fsntfs.c:590
ni_create_attr_list+0x937/0x1520 fs/ntfs3/frecord.c:876
ni_ins_attr_ext+0x23f/0xaf0 fs/ntfs3/frecord.c:974
ni_insert_attr+0x310/0x870 fs/ntfs3/frecord.c:1141
ni_insert_resident+0xd2/0x3a0 fs/ntfs3/frecord.c:1525
ntfs_set_ea+0xf46/0x13d0 fs/ntfs3/xattr.c:437
ntfs_save_wsl_perm+0x134/0x3d0 fs/ntfs3/xattr.c:946
ntfs3_setattr+0x92e/0xb20 fs/ntfs3/file.c:708
notify_change+0x742/0x11c0 fs/attr.c:499
chown_common+0x596/0x660 fs/open.c:783
do_fchownat+0x140/0x1f0 fs/open.c:814
__do_sys_lchown fs/open.c:839 [inline]
__se_sys_lchown fs/open.c:837 [inline]
__x64_sys_lchown+0x7e/0xc0 fs/open.c:837
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0958017a59
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f0957fd4218 EFLAGS: 00000246 ORIG_RAX: 000000000000005e
RAX: ffffffffffffffda RBX: 00007f09580be6a8 RCX: 00007f0958017a59
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007f09580be6a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f09580be6ac
R13: 00007f095808b4ac R14: 0032656c69662f2e R15: 00007f095806c0c0
</TASK>
Allocated by task 5038:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
____kasan_kmalloc mm/kasan/common.c:374 [inline]
__kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:383
kasan_kmalloc include/linux/kasan.h:198 [inline]
__do_kmalloc_node mm/slab_common.c:1023 [inline]
__kmalloc+0x60/0x100 mm/slab_common.c:1036
__do_kmalloc_node mm/slab_common.c:1023 [inline]
kmalloc include/linux/slab.h:603 [inline]
tomoyo_realpath_from_path+0xb9/0x710 security/tomoyo/realpath.c:251
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_check_open_permission+0x2a3/0x3b0 security/tomoyo/file.c:771
tomoyo_file_open security/tomoyo/tomoyo.c:332 [inline]
tomoyo_file_open+0xa8/0xd0 security/tomoyo/tomoyo.c:327
security_file_open+0x6a/0xe0 security/security.c:2836
do_dentry_open+0x538/0x1730 fs/open.c:916
do_open fs/namei.c:3639 [inline]
path_openat+0x19af/0x29c0 fs/namei.c:3796
do_filp_open+0x1de/0x430 fs/namei.c:3823
do_sys_openat2+0x176/0x1e0 fs/open.c:1422
do_sys_open fs/open.c:1437 [inline]
__do_sys_openat fs/open.c:1453 [inline]
__se_sys_openat fs/open.c:1448 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1448
__do_sys_openat fs/open.c:1453 [inline]
__se_sys_openat fs/open.c:1448 [inline]
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Freed by task 5038:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522
____kasan_slab_free mm/kasan/common.c:236 [inline]
____kasan_slab_free+0x15b/0x1b0 mm/kasan/common.c:200
kasan_slab_free include/linux/kasan.h:164 [inline]
slab_free_hook mm/slub.c:1800 [inline]
slab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826
slab_free_hook mm/slub.c:1800 [inline]
slab_free mm/slub.c:3809 [inline]
__kmem_cache_free+0xb8/0x2f0 mm/slub.c:3822
tomoyo_realpath_from_path+0x1a6/0x710 security/tomoyo/realpath.c:286
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_check_open_permission+0x2a3/0x3b0 security/tomoyo/file.c:771
tomoyo_file_open security/tomoyo/tomoyo.c:332 [inline]
tomoyo_file_open+0xa8/0xd0 security/tomoyo/tomoyo.c:327
security_file_open+0x6a/0xe0 security/security.c:2836
do_dentry_open+0x538/0x1730 fs/open.c:916
do_open fs/namei.c:3639 [inline]
path_openat+0x19af/0x29c0 fs/namei.c:3796
do_filp_open+0x1de/0x430 fs/namei.c:3823
do_sys_openat2+0x176/0x1e0 fs/open.c:1422
do_sys_open fs/open.c:1437 [inline]
__do_sys_openat fs/open.c:1453 [inline]
__se_sys_openat fs/open.c:1448 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1448
__do_sys_openat fs/open.c:1453 [inline]
__se_sys_openat fs/open.c:1448 [inline]
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
The buggy address belongs to the object at ffff888016aaa000
which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 0 bytes inside of
freed 4096-byte region [ffff888016aaa000, ffff888016aab000)
The buggy address is located 0 bytes inside of
The buggy address belongs to the physical page:
head:ffffea00005aaa00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000840 ffff888012c42140 dead000000000100 dead000000000122
page_type: 0xffffffff()
raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 3094771911, free_ts 0
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x2cf/0x340 mm/page_alloc.c:1536
prep_new_page mm/page_alloc.c:1543 [inline]
get_page_from_freelist+0xee0/0x2f20 mm/page_alloc.c:3170
__alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4426
alloc_page_interleave+0x1e/0x250 mm/mempolicy.c:2131
alloc_pages+0x22a/0x270 mm/mempolicy.c:2293
alloc_slab_page mm/slub.c:1870 [inline]
allocate_slab+0x251/0x380 mm/slub.c:2017
new_slab mm/slub.c:2070 [inline]
___slab_alloc+0x8c7/0x1580 mm/slub.c:3223
__slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3322
__slab_alloc_node mm/slub.c:3375 [inline]
slab_alloc_node mm/slub.c:3468 [inline]
__kmem_cache_alloc_node+0x131/0x340 mm/slub.c:3517
slab_alloc_node mm/slub.c:3468 [inline]
kmalloc_trace+0x25/0xe0 mm/slab_common.c:1114
kmalloc include/linux/slab.h:599 [inline]
kzalloc include/linux/slab.h:720 [inline]
kobject_uevent_env+0x24c/0x1800 lib/kobject_uevent.c:524
kset_register+0x1b6/0x2a0 lib/kobject.c:873
class_register+0x1cb/0x330 drivers/base/class.c:205
ib_core_init+0xb9/0x300 drivers/infiniband/core/device.c:2780
do_one_initcall+0x117/0x630 init/main.c:1232
do_initcall_level init/main.c:1294 [inline]
do_initcalls init/main.c:1310 [inline]
do_basic_setup init/main.c:1329 [inline]
kernel_init_freeable+0x5c2/0x900 init/main.c:1547
page_owner free stack trace missing
Memory state around the buggy address:
ffff888016aa9f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888016aaa000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888016aaa080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888016aaa100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
syzbot
Sep 26, 2023, 10:49:28 PM9/26/23
to almaz.ale...@paragon-software.com, bra...@kernel.org, h...@lst.de, linux-...@vger.kernel.org, linux-...@vger.kernel.org, ll...@lists.linux.dev, nat...@kernel.org, ndesau...@google.com, nt...@lists.linux.dev, syzkall...@googlegroups.com, tr...@redhat.com, vi...@zeniv.linux.org.uk
syzbot has bisected this issue to:
commit 5f0fb2210bb34ecd3f7bfde0d8f0068b79b2e094
Author: Christoph Hellwig <h...@lst.de>
Date: Wed Aug 9 22:05:44 2023 +0000
ntfs3: don't call sync_blockdev in ntfs_put_super
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1671b51e680000
start commit: 6465e260f487 Linux 6.6-rc3
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=1571b51e680000
console output: https://syzkaller.appspot.com/x/log.txt?x=1171b51e680000
Fixes: 5f0fb2210bb3 ("ntfs3: don't call sync_blockdev in ntfs_put_super")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
commit 5f0fb2210bb34ecd3f7bfde0d8f0068b79b2e094
Author: Christoph Hellwig <h...@lst.de>
Date: Wed Aug 9 22:05:44 2023 +0000
ntfs3: don't call sync_blockdev in ntfs_put_super
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1671b51e680000
start commit: 6465e260f487 Linux 6.6-rc3
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=1571b51e680000
console output: https://syzkaller.appspot.com/x/log.txt?x=1171b51e680000
kernel config: https://syzkaller.appspot.com/x/.config?x=bb54ecdfa197f132
dashboard link: https://syzkaller.appspot.com/bug?extid=bc79f8d1898960d41073
dashboard link: https://syzkaller.appspot.com/bug?extid=bc79f8d1898960d41073
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14aa4e32680000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=171787b6680000
Reported-by: syzbot+bc79f8...@syzkaller.appspotmail.com
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=171787b6680000
Fixes: 5f0fb2210bb3 ("ntfs3: don't call sync_blockdev in ntfs_put_super")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
syzbot
Sep 27, 2023, 10:17:35 AM9/27/23
to bra...@kernel.org, bra...@kernel.org, syzkall...@googlegroups.com
> #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 493c71926c20309226b6d73f6b661a9813de5f0b
Your commands are accepted, but please keep syzkall...@googlegroups.com mailing list in CC next time. It serves as a history of what happened with each bug report. Thank you.
Your commands are accepted, but please keep syzkall...@googlegroups.com mailing list in CC next time. It serves as a history of what happened with each bug report. Thank you.
syzbot
Sep 27, 2023, 10:48:21 AM9/27/23
to bra...@kernel.org, syzkall...@googlegroups.com
Hello,
syzbot has tested the proposed patch and the reproducer did not trigger any issue:
Reported-and-tested-by: syzbot+bc79f8...@syzkaller.appspotmail.com
Tested on:
commit: 493c7192 ntfs3: put resources during ntfs_fill_super()
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=110581c6680000
kernel config: https://syzkaller.appspot.com/x/.config?x=f4894cf58531f
Note: testing is done by a robot and is best-effort only.
syzbot has tested the proposed patch and the reproducer did not trigger any issue:
Reported-and-tested-by: syzbot+bc79f8...@syzkaller.appspotmail.com
Tested on:
commit: 493c7192 ntfs3: put resources during ntfs_fill_super()
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=110581c6680000
kernel config: https://syzkaller.appspot.com/x/.config?x=f4894cf58531f
dashboard link: https://syzkaller.appspot.com/bug?extid=bc79f8d1898960d41073
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
Note: no patches were applied.
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
Note: testing is done by a robot and is best-effort only.
Christian Brauner
Sep 27, 2023, 11:08:54 AM9/27/23
to syzbot, almaz.ale...@paragon-software.com, h...@lst.de, linux-...@vger.kernel.org, linux-...@vger.kernel.org, ll...@lists.linux.dev, nat...@kernel.org, ndesau...@google.com, nt...@lists.linux.dev, syzkall...@googlegroups.com, tr...@redhat.com, vi...@zeniv.linux.org.uk
#syz fix: ntfs3: put resources during ntfs_fill_super()
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