[v5.15] KASAN: use-after-free Write in gfs2_inode_refresh
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syzbot
Jun 7, 2025, 12:50:40 AM6/7/25
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 1c700860e8bc Linux 5.15.185
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=12fd6c0c580000
kernel config: https://syzkaller.appspot.com/x/.config?x=db74c56dea20051
dashboard link: https://syzkaller.appspot.com/bug?extid=5163062842337c2b3caa
compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/98c9bcd8fb21/disk-1c700860.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/75eaa3b1c3f3/vmlinux-1c700860.xz
kernel image: https://storage.googleapis.com/syzbot-assets/ed251e9d15fe/bzImage-1c700860.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+516306...@syzkaller.appspotmail.com
kthread+0x436/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
</TASK>
==================================================================
BUG: KASAN: use-after-free in instrument_atomic_write include/linux/instrumented.h:86 [inline]
BUG: KASAN: use-after-free in clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]
BUG: KASAN: use-after-free in gfs2_inode_refresh+0xbee/0xfe0 fs/gfs2/glops.c:487
Write of size 8 at addr ffff88806369baf0 by task gfs2_quotad/4831
CPU: 0 PID: 4831 Comm: gfs2_quotad Not tainted 5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
<TASK>
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
print_address_description+0x60/0x2d0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:434 [inline]
kasan_report+0xdf/0x130 mm/kasan/report.c:451
check_region_inline mm/kasan/generic.c:-1 [inline]
kasan_check_range+0x27b/0x290 mm/kasan/generic.c:189
instrument_atomic_write include/linux/instrumented.h:86 [inline]
clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]
gfs2_inode_refresh+0xbee/0xfe0 fs/gfs2/glops.c:487
inode_go_lock+0x127/0x470 fs/gfs2/glops.c:510
do_promote+0x741/0xab0 fs/gfs2/glock.c:507
finish_xmote+0x514/0xb70 fs/gfs2/glock.c:678
do_xmote+0x7b6/0x1120 fs/gfs2/glock.c:824
gfs2_glock_nq+0xc7a/0x1550 fs/gfs2/glock.c:1534
gfs2_glock_nq_init fs/gfs2/glock.h:246 [inline]
do_sync+0x486/0xc00 fs/gfs2/quota.c:927
gfs2_quota_sync+0x32c/0x6f0 fs/gfs2/quota.c:1329
quotad_check_timeo fs/gfs2/quota.c:1519 [inline]
gfs2_quotad+0x3f6/0x880 fs/gfs2/quota.c:1586
kthread+0x436/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
</TASK>
Allocated by task 4829:
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+0x9c/0xd0 mm/kasan/common.c:467
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x4c/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3220 [inline]
slab_alloc mm/slub.c:3228 [inline]
kmem_cache_alloc+0x100/0x290 mm/slub.c:3233
gfs2_alloc_inode+0x45/0x110 fs/gfs2/super.c:1447
alloc_inode fs/inode.c:261 [inline]
iget5_locked+0x9e/0x250 fs/inode.c:1263
gfs2_iget fs/gfs2/inode.c:64 [inline]
gfs2_inode_lookup+0xe5/0xd00 fs/gfs2/inode.c:140
gfs2_dir_search+0x165/0x220 fs/gfs2/dir.c:1665
gfs2_lookupi+0x45c/0x5e0 fs/gfs2/inode.c:332
gfs2_lookup_simple+0xa3/0xf0 fs/gfs2/inode.c:273
init_inodes+0x180/0x320 fs/gfs2/ops_fstype.c:906
gfs2_fill_super+0x1701/0x1f50 fs/gfs2/ops_fstype.c:1249
get_tree_bdev+0x3f1/0x610 fs/super.c:1325
gfs2_get_tree+0x4d/0x1e0 fs/gfs2/ops_fstype.c:1332
vfs_get_tree+0x88/0x270 fs/super.c:1530
do_new_mount+0x24a/0xa40 fs/namespace.c:3010
do_mount fs/namespace.c:3353 [inline]
__do_sys_mount fs/namespace.c:3561 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3538
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Freed by task 20:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:46
kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
____kasan_slab_free+0xd5/0x110 mm/kasan/common.c:366
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:1705 [inline]
slab_free_freelist_hook+0xea/0x170 mm/slub.c:1731
slab_free mm/slub.c:3499 [inline]
kmem_cache_free+0x8f/0x210 mm/slub.c:3515
rcu_do_batch kernel/rcu/tree.c:2523 [inline]
rcu_core+0x962/0x15d0 kernel/rcu/tree.c:2763
handle_softirqs+0x328/0x820 kernel/softirq.c:576
run_ksoftirqd+0x98/0xf0 kernel/softirq.c:943
smpboot_thread_fn+0x4f6/0x970 kernel/smpboot.c:164
kthread+0x436/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Last potentially related work creation:
kasan_save_stack+0x35/0x60 mm/kasan/common.c:38
kasan_record_aux_stack+0xb8/0x100 mm/kasan/generic.c:348
__call_rcu kernel/rcu/tree.c:3007 [inline]
call_rcu+0x179/0x920 kernel/rcu/tree.c:3087
destroy_inode fs/inode.c:316 [inline]
evict+0x7da/0x870 fs/inode.c:662
gfs2_put_super+0x2fe/0x7d0 fs/gfs2/super.c:603
generic_shutdown_super+0x130/0x300 fs/super.c:475
kill_block_super+0x7c/0xe0 fs/super.c:1427
deactivate_locked_super+0x93/0xf0 fs/super.c:335
cleanup_mnt+0x418/0x4d0 fs/namespace.c:1139
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
The buggy address belongs to the object at ffff88806369b640
which belongs to the cache gfs2_inode of size 1608
The buggy address is located 1200 bytes inside of
1608-byte region [ffff88806369b640, ffff88806369bc88)
The buggy address belongs to the page:
page:ffffea00018da600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x63698
head:ffffea00018da600 order:3 compound_mapcount:0 compound_pincount:0
memcg:ffff88802530ef01
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 0000000000000000 dead000000000122 ffff8881466888c0
raw: 0000000000000000 0000000080120012 00000001ffffffff ffff88802530ef01
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Reclaimable, gfp_mask 0x1d20d0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 4829, ts 92029647550, free_ts 77072071041
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
__alloc_pages+0x1e1/0x470 mm/page_alloc.c:5474
alloc_slab_page mm/slub.c:1775 [inline]
allocate_slab mm/slub.c:1912 [inline]
new_slab+0xc0/0x4b0 mm/slub.c:1975
___slab_alloc+0x81e/0xdf0 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+0x195/0x290 mm/slub.c:3233
gfs2_alloc_inode+0x45/0x110 fs/gfs2/super.c:1447
alloc_inode fs/inode.c:261 [inline]
iget5_locked+0x9e/0x250 fs/inode.c:1263
gfs2_iget fs/gfs2/inode.c:64 [inline]
gfs2_inode_lookup+0xe5/0xd00 fs/gfs2/inode.c:140
gfs2_lookup_root fs/gfs2/ops_fstype.c:465 [inline]
init_sb+0xa49/0x1330 fs/gfs2/ops_fstype.c:532
gfs2_fill_super+0x13fb/0x1f50 fs/gfs2/ops_fstype.c:1216
get_tree_bdev+0x3f1/0x610 fs/super.c:1325
gfs2_get_tree+0x4d/0x1e0 fs/gfs2/ops_fstype.c:1332
vfs_get_tree+0x88/0x270 fs/super.c:1530
do_new_mount+0x24a/0xa40 fs/namespace.c:3010
do_mount fs/namespace.c:3353 [inline]
__do_sys_mount fs/namespace.c:3561 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3538
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
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+0x637/0x6c0 mm/page_alloc.c:3317
free_unref_page+0x94/0x280 mm/page_alloc.c:3396
free_slab mm/slub.c:2015 [inline]
discard_slab mm/slub.c:2021 [inline]
__unfreeze_partials+0x1a5/0x200 mm/slub.c:2507
put_cpu_partial+0x12d/0x190 mm/slub.c:2587
qlist_free_all+0x35/0x90 mm/kasan/quarantine.c:176
kasan_quarantine_reduce+0x150/0x160 mm/kasan/quarantine.c:283
__kasan_slab_alloc+0x2f/0xd0 mm/kasan/common.c:444
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x4c/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3220 [inline]
slab_alloc mm/slub.c:3228 [inline]
kmem_cache_alloc+0x100/0x290 mm/slub.c:3233
getname_flags+0xb5/0x500 fs/namei.c:138
do_sys_openat2+0xcf/0x4a0 fs/open.c:1247
do_sys_open fs/open.c:1269 [inline]
__do_sys_openat fs/open.c:1285 [inline]
__se_sys_openat fs/open.c:1280 [inline]
__x64_sys_openat+0x135/0x160 fs/open.c:1280
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Memory state around the buggy address:
ffff88806369b980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88806369ba00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88806369ba80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88806369bb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88806369bb80: 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.
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If the report is already addressed, let syzbot know by replying with:
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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:
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syzbot found the following issue on:
HEAD commit: 1c700860e8bc Linux 5.15.185
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=12fd6c0c580000
kernel config: https://syzkaller.appspot.com/x/.config?x=db74c56dea20051
dashboard link: https://syzkaller.appspot.com/bug?extid=5163062842337c2b3caa
compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/98c9bcd8fb21/disk-1c700860.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/75eaa3b1c3f3/vmlinux-1c700860.xz
kernel image: https://storage.googleapis.com/syzbot-assets/ed251e9d15fe/bzImage-1c700860.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+516306...@syzkaller.appspotmail.com
kthread+0x436/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
</TASK>
==================================================================
BUG: KASAN: use-after-free in instrument_atomic_write include/linux/instrumented.h:86 [inline]
BUG: KASAN: use-after-free in clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]
BUG: KASAN: use-after-free in gfs2_inode_refresh+0xbee/0xfe0 fs/gfs2/glops.c:487
Write of size 8 at addr ffff88806369baf0 by task gfs2_quotad/4831
CPU: 0 PID: 4831 Comm: gfs2_quotad Not tainted 5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
<TASK>
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
print_address_description+0x60/0x2d0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:434 [inline]
kasan_report+0xdf/0x130 mm/kasan/report.c:451
check_region_inline mm/kasan/generic.c:-1 [inline]
kasan_check_range+0x27b/0x290 mm/kasan/generic.c:189
instrument_atomic_write include/linux/instrumented.h:86 [inline]
clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]
gfs2_inode_refresh+0xbee/0xfe0 fs/gfs2/glops.c:487
inode_go_lock+0x127/0x470 fs/gfs2/glops.c:510
do_promote+0x741/0xab0 fs/gfs2/glock.c:507
finish_xmote+0x514/0xb70 fs/gfs2/glock.c:678
do_xmote+0x7b6/0x1120 fs/gfs2/glock.c:824
gfs2_glock_nq+0xc7a/0x1550 fs/gfs2/glock.c:1534
gfs2_glock_nq_init fs/gfs2/glock.h:246 [inline]
do_sync+0x486/0xc00 fs/gfs2/quota.c:927
gfs2_quota_sync+0x32c/0x6f0 fs/gfs2/quota.c:1329
quotad_check_timeo fs/gfs2/quota.c:1519 [inline]
gfs2_quotad+0x3f6/0x880 fs/gfs2/quota.c:1586
kthread+0x436/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
</TASK>
Allocated by task 4829:
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+0x9c/0xd0 mm/kasan/common.c:467
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x4c/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3220 [inline]
slab_alloc mm/slub.c:3228 [inline]
kmem_cache_alloc+0x100/0x290 mm/slub.c:3233
gfs2_alloc_inode+0x45/0x110 fs/gfs2/super.c:1447
alloc_inode fs/inode.c:261 [inline]
iget5_locked+0x9e/0x250 fs/inode.c:1263
gfs2_iget fs/gfs2/inode.c:64 [inline]
gfs2_inode_lookup+0xe5/0xd00 fs/gfs2/inode.c:140
gfs2_dir_search+0x165/0x220 fs/gfs2/dir.c:1665
gfs2_lookupi+0x45c/0x5e0 fs/gfs2/inode.c:332
gfs2_lookup_simple+0xa3/0xf0 fs/gfs2/inode.c:273
init_inodes+0x180/0x320 fs/gfs2/ops_fstype.c:906
gfs2_fill_super+0x1701/0x1f50 fs/gfs2/ops_fstype.c:1249
get_tree_bdev+0x3f1/0x610 fs/super.c:1325
gfs2_get_tree+0x4d/0x1e0 fs/gfs2/ops_fstype.c:1332
vfs_get_tree+0x88/0x270 fs/super.c:1530
do_new_mount+0x24a/0xa40 fs/namespace.c:3010
do_mount fs/namespace.c:3353 [inline]
__do_sys_mount fs/namespace.c:3561 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3538
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Freed by task 20:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:46
kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
____kasan_slab_free+0xd5/0x110 mm/kasan/common.c:366
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:1705 [inline]
slab_free_freelist_hook+0xea/0x170 mm/slub.c:1731
slab_free mm/slub.c:3499 [inline]
kmem_cache_free+0x8f/0x210 mm/slub.c:3515
rcu_do_batch kernel/rcu/tree.c:2523 [inline]
rcu_core+0x962/0x15d0 kernel/rcu/tree.c:2763
handle_softirqs+0x328/0x820 kernel/softirq.c:576
run_ksoftirqd+0x98/0xf0 kernel/softirq.c:943
smpboot_thread_fn+0x4f6/0x970 kernel/smpboot.c:164
kthread+0x436/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Last potentially related work creation:
kasan_save_stack+0x35/0x60 mm/kasan/common.c:38
kasan_record_aux_stack+0xb8/0x100 mm/kasan/generic.c:348
__call_rcu kernel/rcu/tree.c:3007 [inline]
call_rcu+0x179/0x920 kernel/rcu/tree.c:3087
destroy_inode fs/inode.c:316 [inline]
evict+0x7da/0x870 fs/inode.c:662
gfs2_put_super+0x2fe/0x7d0 fs/gfs2/super.c:603
generic_shutdown_super+0x130/0x300 fs/super.c:475
kill_block_super+0x7c/0xe0 fs/super.c:1427
deactivate_locked_super+0x93/0xf0 fs/super.c:335
cleanup_mnt+0x418/0x4d0 fs/namespace.c:1139
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
The buggy address belongs to the object at ffff88806369b640
which belongs to the cache gfs2_inode of size 1608
The buggy address is located 1200 bytes inside of
1608-byte region [ffff88806369b640, ffff88806369bc88)
The buggy address belongs to the page:
page:ffffea00018da600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x63698
head:ffffea00018da600 order:3 compound_mapcount:0 compound_pincount:0
memcg:ffff88802530ef01
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 0000000000000000 dead000000000122 ffff8881466888c0
raw: 0000000000000000 0000000080120012 00000001ffffffff ffff88802530ef01
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Reclaimable, gfp_mask 0x1d20d0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 4829, ts 92029647550, free_ts 77072071041
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
__alloc_pages+0x1e1/0x470 mm/page_alloc.c:5474
alloc_slab_page mm/slub.c:1775 [inline]
allocate_slab mm/slub.c:1912 [inline]
new_slab+0xc0/0x4b0 mm/slub.c:1975
___slab_alloc+0x81e/0xdf0 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+0x195/0x290 mm/slub.c:3233
gfs2_alloc_inode+0x45/0x110 fs/gfs2/super.c:1447
alloc_inode fs/inode.c:261 [inline]
iget5_locked+0x9e/0x250 fs/inode.c:1263
gfs2_iget fs/gfs2/inode.c:64 [inline]
gfs2_inode_lookup+0xe5/0xd00 fs/gfs2/inode.c:140
gfs2_lookup_root fs/gfs2/ops_fstype.c:465 [inline]
init_sb+0xa49/0x1330 fs/gfs2/ops_fstype.c:532
gfs2_fill_super+0x13fb/0x1f50 fs/gfs2/ops_fstype.c:1216
get_tree_bdev+0x3f1/0x610 fs/super.c:1325
gfs2_get_tree+0x4d/0x1e0 fs/gfs2/ops_fstype.c:1332
vfs_get_tree+0x88/0x270 fs/super.c:1530
do_new_mount+0x24a/0xa40 fs/namespace.c:3010
do_mount fs/namespace.c:3353 [inline]
__do_sys_mount fs/namespace.c:3561 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3538
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
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+0x637/0x6c0 mm/page_alloc.c:3317
free_unref_page+0x94/0x280 mm/page_alloc.c:3396
free_slab mm/slub.c:2015 [inline]
discard_slab mm/slub.c:2021 [inline]
__unfreeze_partials+0x1a5/0x200 mm/slub.c:2507
put_cpu_partial+0x12d/0x190 mm/slub.c:2587
qlist_free_all+0x35/0x90 mm/kasan/quarantine.c:176
kasan_quarantine_reduce+0x150/0x160 mm/kasan/quarantine.c:283
__kasan_slab_alloc+0x2f/0xd0 mm/kasan/common.c:444
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x4c/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3220 [inline]
slab_alloc mm/slub.c:3228 [inline]
kmem_cache_alloc+0x100/0x290 mm/slub.c:3233
getname_flags+0xb5/0x500 fs/namei.c:138
do_sys_openat2+0xcf/0x4a0 fs/open.c:1247
do_sys_open fs/open.c:1269 [inline]
__do_sys_openat fs/open.c:1285 [inline]
__se_sys_openat fs/open.c:1280 [inline]
__x64_sys_openat+0x135/0x160 fs/open.c:1280
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Memory state around the buggy address:
ffff88806369b980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88806369ba00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88806369ba80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88806369bb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88806369bb80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
---
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