[moderation] [ntfs3?] KASAN: slab-use-after-free Read in mi_enum_attr
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syzbot
Apr 8, 2026, 10:36:31 PM (3 days ago) Apr 8
to syzkaller-upst...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 7ca6d1cfec80 Merge tag 'powerpc-7.0-4' of git://git.kernel..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=153f4dda580000
kernel config: https://syzkaller.appspot.com/x/.config?x=45cb3c58fd963c27
dashboard link: https://syzkaller.appspot.com/bug?extid=0f60f47896d976d3d3ea
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
CC: [almaz.ale...@paragon-software.com linux-...@vger.kernel.org nt...@lists.linux.dev]
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/017473170021/disk-7ca6d1cf.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/45a5b836e74a/vmlinux-7ca6d1cf.xz
kernel image: https://storage.googleapis.com/syzbot-assets/910682a47b31/bzImage-7ca6d1cf.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+0f60f4...@syzkaller.appspotmail.com
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in mi_enum_attr+0x806/0x9f0 fs/ntfs3/record.c:233
Read of size 4 at addr ffff8880634e1834 by task syz.2.208/7515
CPU: 1 UID: 0 PID: 7515 Comm: syz.2.208 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Call Trace:
<TASK>
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xba/0x230 mm/kasan/report.c:482
kasan_report+0x117/0x150 mm/kasan/report.c:595
mi_enum_attr+0x806/0x9f0 fs/ntfs3/record.c:233
mi_find_attr+0x3e/0x2c0 fs/ntfs3/record.c:367
ni_find_attr+0x1dd/0x570 fs/ntfs3/frecord.c:208
ni_write_parents+0x332/0x440 fs/ntfs3/frecord.c:2927
ntfs_file_fsync+0x161/0x260 fs/ntfs3/file.c:1504
vfs_fsync_range fs/sync.c:186 [inline]
vfs_fsync fs/sync.c:200 [inline]
do_fsync fs/sync.c:211 [inline]
__do_sys_fsync fs/sync.c:216 [inline]
__se_sys_fsync fs/sync.c:214 [inline]
__x64_sys_fsync+0x130/0x190 fs/sync.c:214
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f562bc8c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5629ea4028 EFLAGS: 00000246 ORIG_RAX: 000000000000004a
RAX: ffffffffffffffda RBX: 00007f562bf06180 RCX: 00007f562bc8c819
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f562bd22c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f562bf06218 R14: 00007f562bf06180 R15: 00007ffd5b501dc8
</TASK>
Allocated by task 7503:
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
__kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415
kasan_kmalloc include/linux/kasan.h:263 [inline]
__do_kmalloc_node mm/slub.c:5260 [inline]
__kmalloc_noprof+0x3e7/0x7b0 mm/slub.c:5272
kmalloc_noprof include/linux/slab.h:954 [inline]
mi_init fs/ntfs3/record.c:105 [inline]
mi_format_new+0xeb/0x610 fs/ntfs3/record.c:422
ni_add_subrecord+0xd1/0x460 fs/ntfs3/frecord.c:323
ntfs_look_free_mft+0x4e1/0xd70 fs/ntfs3/fsntfs.c:738
ni_create_attr_list+0x94b/0x1450 fs/ntfs3/frecord.c:830
ni_ins_attr_ext+0x461/0xba0 fs/ntfs3/frecord.c:928
ni_insert_attr fs/ntfs3/frecord.c:1095 [inline]
ni_insert_resident fs/ntfs3/frecord.c:1479 [inline]
ni_add_name+0x6df/0xc90 fs/ntfs3/frecord.c:2756
ni_rename+0x4a/0x100 fs/ntfs3/frecord.c:2795
ntfs_rename+0x6ea/0xb40 fs/ntfs3/namei.c:331
vfs_rename+0xa96/0xeb0 fs/namei.c:6032
filename_renameat2+0x539/0x9c0 fs/namei.c:6150
__do_sys_rename fs/namei.c:6194 [inline]
__se_sys_rename+0x55/0x2c0 fs/namei.c:6190
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 7504:
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:584
poison_slab_object mm/kasan/common.c:253 [inline]
__kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285
kasan_slab_free include/linux/kasan.h:235 [inline]
slab_free_hook mm/slub.c:2685 [inline]
slab_free mm/slub.c:6165 [inline]
kfree+0x1c1/0x6c0 mm/slub.c:6483
mi_clear fs/ntfs3/ntfs_fs.h:1211 [inline]
mi_put+0x118/0x190 fs/ntfs3/record.c:97
ni_write_inode+0xc29/0xff0 fs/ntfs3/frecord.c:3218
write_inode fs/fs-writeback.c:1582 [inline]
__writeback_single_inode+0x75d/0x11a0 fs/fs-writeback.c:1825
writeback_single_inode+0x488/0xd60 fs/fs-writeback.c:1881
write_inode_now+0x1c2/0x290 fs/fs-writeback.c:2972
ntfs_file_fsync+0x136/0x260 fs/ntfs3/file.c:1501
vfs_fsync_range fs/sync.c:186 [inline]
vfs_fsync fs/sync.c:200 [inline]
do_fsync fs/sync.c:211 [inline]
__do_sys_fsync fs/sync.c:216 [inline]
__se_sys_fsync fs/sync.c:214 [inline]
__x64_sys_fsync+0x130/0x190 fs/sync.c:214
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The buggy address belongs to the object at ffff8880634e1800
which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 52 bytes inside of
freed 1024-byte region [ffff8880634e1800, ffff8880634e1c00)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x634e0
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x80000000000040(head|node=0|zone=1)
page_type: f5(slab)
raw: 0080000000000040 ffff88813fe19dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000800100010 00000000f5000000 0000000000000000
head: 0080000000000040 ffff88813fe19dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000800100010 00000000f5000000 0000000000000000
head: 0080000000000003 ffffea00018d3801 00000000ffffffff 00000000ffffffff
head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2840(GFP_NOWAIT|__GFP_IO|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 6650, tgid 6647 (syz.3.107), ts 137406389856, free_ts 136891616209
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x231/0x280 mm/page_alloc.c:1889
prep_new_page mm/page_alloc.c:1897 [inline]
get_page_from_freelist+0x28bb/0x2950 mm/page_alloc.c:3962
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5250
alloc_slab_page mm/slub.c:3292 [inline]
allocate_slab+0x77/0x660 mm/slub.c:3481
new_slab mm/slub.c:3539 [inline]
refill_objects+0x334/0x3c0 mm/slub.c:7175
refill_sheaf mm/slub.c:2812 [inline]
__pcs_replace_empty_main+0x35c/0x710 mm/slub.c:4615
alloc_from_pcs mm/slub.c:4717 [inline]
slab_alloc_node mm/slub.c:4851 [inline]
__do_kmalloc_node mm/slub.c:5259 [inline]
__kmalloc_noprof+0x530/0x7b0 mm/slub.c:5272
kmalloc_noprof include/linux/slab.h:954 [inline]
xlog_kvmalloc fs/xfs/xfs_log_priv.h:709 [inline]
xlog_cil_alloc_shadow_bufs fs/xfs/xfs_log_cil.c:335 [inline]
xlog_cil_commit+0x2e1/0x2ce0 fs/xfs/xfs_log_cil.c:1833
__xfs_trans_commit+0x3d3/0xc20 fs/xfs/xfs_trans.c:868
xfs_trans_commit+0x13e/0x1c0 fs/xfs/xfs_trans.c:926
xfs_qm_qino_alloc+0x5bd/0x730 fs/xfs/xfs_qm.c:997
xfs_qm_init_quotainos+0x7f4/0xa00 fs/xfs/xfs_qm.c:1787
xfs_qm_init_quotainfo+0x17c/0x1270 fs/xfs/xfs_qm.c:788
xfs_qm_mount_quotas+0xa6/0x670 fs/xfs/xfs_qm.c:1633
xfs_mountfs+0x1b16/0x22e0 fs/xfs/xfs_mount.c:1190
xfs_fs_fill_super+0x11b5/0x1600 fs/xfs/xfs_super.c:1938
page last free pid 6658 tgid 6657 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1433 [inline]
__free_frozen_pages+0xfe3/0x1170 mm/page_alloc.c:2978
__slab_free+0x24f/0x2a0 mm/slub.c:5573
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x97/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4538 [inline]
slab_alloc_node mm/slub.c:4866 [inline]
kmem_cache_alloc_noprof+0x33b/0x680 mm/slub.c:4873
ptlock_alloc+0x20/0x70 mm/memory.c:7469
ptlock_init include/linux/mm.h:3494 [inline]
pagetable_pte_ctor include/linux/mm.h:3543 [inline]
__pte_alloc_one_noprof include/asm-generic/pgalloc.h:79 [inline]
pte_alloc_one+0x7e/0x380 arch/x86/mm/pgtable.c:18
__pte_alloc+0x25/0x1a0 mm/memory.c:466
do_anonymous_page mm/memory.c:5234 [inline]
do_pte_missing+0x1ba7/0x29e0 mm/memory.c:4475
handle_pte_fault mm/memory.c:6317 [inline]
__handle_mm_fault mm/memory.c:6455 [inline]
handle_mm_fault+0xd0a/0x13c0 mm/memory.c:6624
do_user_addr_fault+0xa73/0x1340 arch/x86/mm/fault.c:1334
handle_page_fault arch/x86/mm/fault.c:1474 [inline]
exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1527
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
Memory state around the buggy address:
ffff8880634e1700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8880634e1780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880634e1800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8880634e1880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880634e1900: 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 report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
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If the report is a duplicate of another one, reply with:
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If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: 7ca6d1cfec80 Merge tag 'powerpc-7.0-4' of git://git.kernel..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=153f4dda580000
kernel config: https://syzkaller.appspot.com/x/.config?x=45cb3c58fd963c27
dashboard link: https://syzkaller.appspot.com/bug?extid=0f60f47896d976d3d3ea
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
CC: [almaz.ale...@paragon-software.com linux-...@vger.kernel.org nt...@lists.linux.dev]
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/017473170021/disk-7ca6d1cf.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/45a5b836e74a/vmlinux-7ca6d1cf.xz
kernel image: https://storage.googleapis.com/syzbot-assets/910682a47b31/bzImage-7ca6d1cf.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+0f60f4...@syzkaller.appspotmail.com
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in mi_enum_attr+0x806/0x9f0 fs/ntfs3/record.c:233
Read of size 4 at addr ffff8880634e1834 by task syz.2.208/7515
CPU: 1 UID: 0 PID: 7515 Comm: syz.2.208 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Call Trace:
<TASK>
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xba/0x230 mm/kasan/report.c:482
kasan_report+0x117/0x150 mm/kasan/report.c:595
mi_enum_attr+0x806/0x9f0 fs/ntfs3/record.c:233
mi_find_attr+0x3e/0x2c0 fs/ntfs3/record.c:367
ni_find_attr+0x1dd/0x570 fs/ntfs3/frecord.c:208
ni_write_parents+0x332/0x440 fs/ntfs3/frecord.c:2927
ntfs_file_fsync+0x161/0x260 fs/ntfs3/file.c:1504
vfs_fsync_range fs/sync.c:186 [inline]
vfs_fsync fs/sync.c:200 [inline]
do_fsync fs/sync.c:211 [inline]
__do_sys_fsync fs/sync.c:216 [inline]
__se_sys_fsync fs/sync.c:214 [inline]
__x64_sys_fsync+0x130/0x190 fs/sync.c:214
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f562bc8c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5629ea4028 EFLAGS: 00000246 ORIG_RAX: 000000000000004a
RAX: ffffffffffffffda RBX: 00007f562bf06180 RCX: 00007f562bc8c819
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f562bd22c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f562bf06218 R14: 00007f562bf06180 R15: 00007ffd5b501dc8
</TASK>
Allocated by task 7503:
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
__kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415
kasan_kmalloc include/linux/kasan.h:263 [inline]
__do_kmalloc_node mm/slub.c:5260 [inline]
__kmalloc_noprof+0x3e7/0x7b0 mm/slub.c:5272
kmalloc_noprof include/linux/slab.h:954 [inline]
mi_init fs/ntfs3/record.c:105 [inline]
mi_format_new+0xeb/0x610 fs/ntfs3/record.c:422
ni_add_subrecord+0xd1/0x460 fs/ntfs3/frecord.c:323
ntfs_look_free_mft+0x4e1/0xd70 fs/ntfs3/fsntfs.c:738
ni_create_attr_list+0x94b/0x1450 fs/ntfs3/frecord.c:830
ni_ins_attr_ext+0x461/0xba0 fs/ntfs3/frecord.c:928
ni_insert_attr fs/ntfs3/frecord.c:1095 [inline]
ni_insert_resident fs/ntfs3/frecord.c:1479 [inline]
ni_add_name+0x6df/0xc90 fs/ntfs3/frecord.c:2756
ni_rename+0x4a/0x100 fs/ntfs3/frecord.c:2795
ntfs_rename+0x6ea/0xb40 fs/ntfs3/namei.c:331
vfs_rename+0xa96/0xeb0 fs/namei.c:6032
filename_renameat2+0x539/0x9c0 fs/namei.c:6150
__do_sys_rename fs/namei.c:6194 [inline]
__se_sys_rename+0x55/0x2c0 fs/namei.c:6190
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 7504:
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:584
poison_slab_object mm/kasan/common.c:253 [inline]
__kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285
kasan_slab_free include/linux/kasan.h:235 [inline]
slab_free_hook mm/slub.c:2685 [inline]
slab_free mm/slub.c:6165 [inline]
kfree+0x1c1/0x6c0 mm/slub.c:6483
mi_clear fs/ntfs3/ntfs_fs.h:1211 [inline]
mi_put+0x118/0x190 fs/ntfs3/record.c:97
ni_write_inode+0xc29/0xff0 fs/ntfs3/frecord.c:3218
write_inode fs/fs-writeback.c:1582 [inline]
__writeback_single_inode+0x75d/0x11a0 fs/fs-writeback.c:1825
writeback_single_inode+0x488/0xd60 fs/fs-writeback.c:1881
write_inode_now+0x1c2/0x290 fs/fs-writeback.c:2972
ntfs_file_fsync+0x136/0x260 fs/ntfs3/file.c:1501
vfs_fsync_range fs/sync.c:186 [inline]
vfs_fsync fs/sync.c:200 [inline]
do_fsync fs/sync.c:211 [inline]
__do_sys_fsync fs/sync.c:216 [inline]
__se_sys_fsync fs/sync.c:214 [inline]
__x64_sys_fsync+0x130/0x190 fs/sync.c:214
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The buggy address belongs to the object at ffff8880634e1800
which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 52 bytes inside of
freed 1024-byte region [ffff8880634e1800, ffff8880634e1c00)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x634e0
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x80000000000040(head|node=0|zone=1)
page_type: f5(slab)
raw: 0080000000000040 ffff88813fe19dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000800100010 00000000f5000000 0000000000000000
head: 0080000000000040 ffff88813fe19dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000800100010 00000000f5000000 0000000000000000
head: 0080000000000003 ffffea00018d3801 00000000ffffffff 00000000ffffffff
head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2840(GFP_NOWAIT|__GFP_IO|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 6650, tgid 6647 (syz.3.107), ts 137406389856, free_ts 136891616209
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x231/0x280 mm/page_alloc.c:1889
prep_new_page mm/page_alloc.c:1897 [inline]
get_page_from_freelist+0x28bb/0x2950 mm/page_alloc.c:3962
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5250
alloc_slab_page mm/slub.c:3292 [inline]
allocate_slab+0x77/0x660 mm/slub.c:3481
new_slab mm/slub.c:3539 [inline]
refill_objects+0x334/0x3c0 mm/slub.c:7175
refill_sheaf mm/slub.c:2812 [inline]
__pcs_replace_empty_main+0x35c/0x710 mm/slub.c:4615
alloc_from_pcs mm/slub.c:4717 [inline]
slab_alloc_node mm/slub.c:4851 [inline]
__do_kmalloc_node mm/slub.c:5259 [inline]
__kmalloc_noprof+0x530/0x7b0 mm/slub.c:5272
kmalloc_noprof include/linux/slab.h:954 [inline]
xlog_kvmalloc fs/xfs/xfs_log_priv.h:709 [inline]
xlog_cil_alloc_shadow_bufs fs/xfs/xfs_log_cil.c:335 [inline]
xlog_cil_commit+0x2e1/0x2ce0 fs/xfs/xfs_log_cil.c:1833
__xfs_trans_commit+0x3d3/0xc20 fs/xfs/xfs_trans.c:868
xfs_trans_commit+0x13e/0x1c0 fs/xfs/xfs_trans.c:926
xfs_qm_qino_alloc+0x5bd/0x730 fs/xfs/xfs_qm.c:997
xfs_qm_init_quotainos+0x7f4/0xa00 fs/xfs/xfs_qm.c:1787
xfs_qm_init_quotainfo+0x17c/0x1270 fs/xfs/xfs_qm.c:788
xfs_qm_mount_quotas+0xa6/0x670 fs/xfs/xfs_qm.c:1633
xfs_mountfs+0x1b16/0x22e0 fs/xfs/xfs_mount.c:1190
xfs_fs_fill_super+0x11b5/0x1600 fs/xfs/xfs_super.c:1938
page last free pid 6658 tgid 6657 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1433 [inline]
__free_frozen_pages+0xfe3/0x1170 mm/page_alloc.c:2978
__slab_free+0x24f/0x2a0 mm/slub.c:5573
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x97/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4538 [inline]
slab_alloc_node mm/slub.c:4866 [inline]
kmem_cache_alloc_noprof+0x33b/0x680 mm/slub.c:4873
ptlock_alloc+0x20/0x70 mm/memory.c:7469
ptlock_init include/linux/mm.h:3494 [inline]
pagetable_pte_ctor include/linux/mm.h:3543 [inline]
__pte_alloc_one_noprof include/asm-generic/pgalloc.h:79 [inline]
pte_alloc_one+0x7e/0x380 arch/x86/mm/pgtable.c:18
__pte_alloc+0x25/0x1a0 mm/memory.c:466
do_anonymous_page mm/memory.c:5234 [inline]
do_pte_missing+0x1ba7/0x29e0 mm/memory.c:4475
handle_pte_fault mm/memory.c:6317 [inline]
__handle_mm_fault mm/memory.c:6455 [inline]
handle_mm_fault+0xd0a/0x13c0 mm/memory.c:6624
do_user_addr_fault+0xa73/0x1340 arch/x86/mm/fault.c:1334
handle_page_fault arch/x86/mm/fault.c:1474 [inline]
exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1527
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
Memory state around the buggy address:
ffff8880634e1700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8880634e1780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880634e1800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8880634e1880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880634e1900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
---
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