[Android 5.10] KASAN: use-after-free Read in f2fs_inode_dirtied
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syzbot
Jun 21, 2025, 4:50:26 AMJun 21
to syzkaller-a...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: d76d4cd0623a Revert "ipv6: save dontfrag in cork"
git tree: android13-5.10-lts
console+strace: https://syzkaller.appspot.com/x/log.txt?x=15ff4182580000
kernel config: https://syzkaller.appspot.com/x/.config?x=65ae605fa87ade4
dashboard link: https://syzkaller.appspot.com/bug?extid=306cd88a5aa727bfcace
compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14f5730c580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15ffd370580000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/d0647cd4f709/disk-d76d4cd0.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/c655810e4869/vmlinux-d76d4cd0.xz
kernel image: https://storage.googleapis.com/syzbot-assets/9e782b94fd88/bzImage-d76d4cd0.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/19515eb1f198/mount_0.gz
fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=11ffd370580000)
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+306cd8...@syzkaller.appspotmail.com
RBP: 00007ffd60712320 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffd60713410
R13: 000055556659c700 R14: 0000000000000001 R15: 431bde82d7b634db
---[ end trace 345c9908b4abd990 ]---
==================================================================
BUG: KASAN: use-after-free in __list_add_valid+0x6b/0xf0 lib/list_debug.c:30
Read of size 8 at addr ffff888121431d70 by task syz-executor117/282
CPU: 0 PID: 282 Comm: syz-executor117 Tainted: G W 5.10.238-syzkaller-00282-gd76d4cd0623a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
__dump_stack+0x21/0x24 lib/dump_stack.c:77
dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118
print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:435 [inline]
kasan_report+0xe2/0x130 mm/kasan/report.c:452
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
__list_add_valid+0x6b/0xf0 lib/list_debug.c:30
__list_add include/linux/list.h:67 [inline]
list_add_tail include/linux/list.h:100 [inline]
f2fs_inode_dirtied+0x199/0x2a0 fs/f2fs/super.c:1476
f2fs_mark_inode_dirty_sync+0xfa/0x140 fs/f2fs/inode.c:33
f2fs_i_links_write fs/f2fs/f2fs.h:3026 [inline]
f2fs_drop_nlink+0x155/0x3c0 fs/f2fs/dir.c:920
f2fs_delete_entry+0x9d5/0xb30 fs/f2fs/dir.c:987
f2fs_unlink+0x422/0x800 fs/f2fs/namei.c:630
vfs_unlink+0x321/0x540 fs/namei.c:3971
do_unlinkat+0x2e9/0x670 fs/namei.c:4036
__do_sys_unlink fs/namei.c:4082 [inline]
__se_sys_unlink fs/namei.c:4080 [inline]
__x64_sys_unlink+0x49/0x50 fs/namei.c:4080
do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f2abdddeb97
Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd60712268 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2abdddeb97
RDX: 00007ffd60712290 RSI: 00007ffd60712320 RDI: 00007ffd60712320
RBP: 00007ffd60712320 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffd60713410
R13: 000055556659c700 R14: 0000000000000001 R15: 431bde82d7b634db
Allocated by task 284:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:430 [inline]
__kasan_slab_alloc+0xbd/0xf0 mm/kasan/common.c:463
kasan_slab_alloc include/linux/kasan.h:244 [inline]
slab_post_alloc_hook+0x5d/0x2f0 mm/slab.h:583
slab_alloc_node mm/slub.c:2947 [inline]
slab_alloc mm/slub.c:2955 [inline]
kmem_cache_alloc+0x165/0x2e0 mm/slub.c:2960
f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2779 [inline]
f2fs_alloc_inode+0x26/0x410 fs/f2fs/super.c:1373
alloc_inode fs/inode.c:233 [inline]
iget_locked+0x146/0x7d0 fs/inode.c:1275
f2fs_iget+0x55/0x4dc0 fs/f2fs/inode.c:498
f2fs_lookup+0x3ee/0xce0 fs/f2fs/namei.c:544
__lookup_slow+0x2aa/0x3e0 fs/namei.c:1640
lookup_slow+0x57/0x70 fs/namei.c:1657
walk_component+0x325/0x460 fs/namei.c:1952
lookup_last fs/namei.c:2403 [inline]
path_lookupat+0x180/0x490 fs/namei.c:2427
filename_lookup+0x1d5/0x600 fs/namei.c:2460
user_path_at_empty+0x43/0x50 fs/namei.c:2740
user_path_at include/linux/namei.h:60 [inline]
vfs_statx+0xff/0x520 fs/stat.c:193
vfs_fstatat fs/stat.c:215 [inline]
vfs_lstat include/linux/fs.h:3304 [inline]
__do_sys_newlstat fs/stat.c:369 [inline]
__se_sys_newlstat+0xb8/0x320 fs/stat.c:363
__x64_sys_newlstat+0x5b/0x70 fs/stat.c:363
do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Freed by task 19:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4a/0x70 mm/kasan/common.c:45
kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370
____kasan_slab_free+0x125/0x160 mm/kasan/common.c:362
__kasan_slab_free+0x11/0x20 mm/kasan/common.c:370
kasan_slab_free include/linux/kasan.h:220 [inline]
slab_free_hook mm/slub.c:1595 [inline]
slab_free_freelist_hook+0xc5/0x190 mm/slub.c:1621
slab_free mm/slub.c:3203 [inline]
kmem_cache_free+0x100/0x2d0 mm/slub.c:3219
f2fs_free_inode+0x24/0x30 fs/f2fs/super.c:1528
i_callback+0x4c/0x70 fs/inode.c:222
rcu_do_batch+0x4df/0xa80 kernel/rcu/tree.c:2494
rcu_core+0x55f/0xd60 kernel/rcu/tree.c:2735
rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2748
__do_softirq+0x255/0x563 kernel/softirq.c:309
Last potentially related work creation:
kasan_save_stack+0x3a/0x60 mm/kasan/common.c:38
__kasan_record_aux_stack+0xd2/0x100 mm/kasan/generic.c:348
kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
__call_rcu kernel/rcu/tree.c:2976 [inline]
call_rcu+0x105/0x1040 kernel/rcu/tree.c:3050
destroy_inode fs/inode.c:288 [inline]
evict+0x857/0x910 fs/inode.c:629
iput_final fs/inode.c:1736 [inline]
iput+0x638/0x7c0 fs/inode.c:1762
do_unlinkat+0x33f/0x670 fs/namei.c:4042
__do_sys_unlink fs/namei.c:4082 [inline]
__se_sys_unlink fs/namei.c:4080 [inline]
__x64_sys_unlink+0x49/0x50 fs/namei.c:4080
do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x61/0xcb
The buggy address belongs to the object at ffff8881214319c0
which belongs to the cache f2fs_inode_cache of size 1520
The buggy address is located 944 bytes inside of
1520-byte region [ffff8881214319c0, ffff888121431fb0)
The buggy address belongs to the page:
page:ffffea0004850c00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x121430
head:ffffea0004850c00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head)
raw: 4000000000010200 dead000000000100 dead000000000122 ffff8881029d3680
raw: 0000000000000000 0000000080130013 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Reclaimable, gfp_mask 0xd2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_RECLAIMABLE), pid 284, ts 22967847224, free_ts 0
set_page_owner include/linux/page_owner.h:35 [inline]
post_alloc_hook mm/page_alloc.c:2456 [inline]
prep_new_page+0x179/0x180 mm/page_alloc.c:2462
get_page_from_freelist+0x2235/0x23d0 mm/page_alloc.c:4254
__alloc_pages_nodemask+0x268/0x5f0 mm/page_alloc.c:5357
alloc_slab_page mm/slub.c:-1 [inline]
allocate_slab mm/slub.c:1808 [inline]
new_slab+0x84/0x3f0 mm/slub.c:1869
new_slab_objects mm/slub.c:2627 [inline]
___slab_alloc+0x2a6/0x450 mm/slub.c:2791
__slab_alloc+0x63/0xa0 mm/slub.c:2831
slab_alloc_node mm/slub.c:2913 [inline]
slab_alloc mm/slub.c:2955 [inline]
kmem_cache_alloc+0x1af/0x2e0 mm/slub.c:2960
f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2779 [inline]
f2fs_alloc_inode+0x26/0x410 fs/f2fs/super.c:1373
alloc_inode fs/inode.c:233 [inline]
iget_locked+0x146/0x7d0 fs/inode.c:1275
f2fs_iget+0x55/0x4dc0 fs/f2fs/inode.c:498
f2fs_fill_super+0x39f0/0x6c70 fs/f2fs/super.c:4193
mount_bdev+0x28b/0x3a0 fs/super.c:1442
f2fs_mount+0x34/0x40 fs/f2fs/super.c:4548
legacy_get_tree+0xed/0x190 fs/fs_context.c:593
vfs_get_tree+0x89/0x260 fs/super.c:1572
do_new_mount+0x25a/0xa20 fs/namespace.c:2915
page_owner free stack trace missing
Memory state around the buggy address:
ffff888121431c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888121431c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888121431d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888121431d80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888121431e00: 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 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.
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, 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: d76d4cd0623a Revert "ipv6: save dontfrag in cork"
git tree: android13-5.10-lts
console+strace: https://syzkaller.appspot.com/x/log.txt?x=15ff4182580000
kernel config: https://syzkaller.appspot.com/x/.config?x=65ae605fa87ade4
dashboard link: https://syzkaller.appspot.com/bug?extid=306cd88a5aa727bfcace
compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14f5730c580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15ffd370580000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/d0647cd4f709/disk-d76d4cd0.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/c655810e4869/vmlinux-d76d4cd0.xz
kernel image: https://storage.googleapis.com/syzbot-assets/9e782b94fd88/bzImage-d76d4cd0.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/19515eb1f198/mount_0.gz
fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=11ffd370580000)
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+306cd8...@syzkaller.appspotmail.com
RBP: 00007ffd60712320 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffd60713410
R13: 000055556659c700 R14: 0000000000000001 R15: 431bde82d7b634db
---[ end trace 345c9908b4abd990 ]---
==================================================================
BUG: KASAN: use-after-free in __list_add_valid+0x6b/0xf0 lib/list_debug.c:30
Read of size 8 at addr ffff888121431d70 by task syz-executor117/282
CPU: 0 PID: 282 Comm: syz-executor117 Tainted: G W 5.10.238-syzkaller-00282-gd76d4cd0623a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
__dump_stack+0x21/0x24 lib/dump_stack.c:77
dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118
print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:435 [inline]
kasan_report+0xe2/0x130 mm/kasan/report.c:452
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
__list_add_valid+0x6b/0xf0 lib/list_debug.c:30
__list_add include/linux/list.h:67 [inline]
list_add_tail include/linux/list.h:100 [inline]
f2fs_inode_dirtied+0x199/0x2a0 fs/f2fs/super.c:1476
f2fs_mark_inode_dirty_sync+0xfa/0x140 fs/f2fs/inode.c:33
f2fs_i_links_write fs/f2fs/f2fs.h:3026 [inline]
f2fs_drop_nlink+0x155/0x3c0 fs/f2fs/dir.c:920
f2fs_delete_entry+0x9d5/0xb30 fs/f2fs/dir.c:987
f2fs_unlink+0x422/0x800 fs/f2fs/namei.c:630
vfs_unlink+0x321/0x540 fs/namei.c:3971
do_unlinkat+0x2e9/0x670 fs/namei.c:4036
__do_sys_unlink fs/namei.c:4082 [inline]
__se_sys_unlink fs/namei.c:4080 [inline]
__x64_sys_unlink+0x49/0x50 fs/namei.c:4080
do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f2abdddeb97
Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd60712268 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2abdddeb97
RDX: 00007ffd60712290 RSI: 00007ffd60712320 RDI: 00007ffd60712320
RBP: 00007ffd60712320 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffd60713410
R13: 000055556659c700 R14: 0000000000000001 R15: 431bde82d7b634db
Allocated by task 284:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:430 [inline]
__kasan_slab_alloc+0xbd/0xf0 mm/kasan/common.c:463
kasan_slab_alloc include/linux/kasan.h:244 [inline]
slab_post_alloc_hook+0x5d/0x2f0 mm/slab.h:583
slab_alloc_node mm/slub.c:2947 [inline]
slab_alloc mm/slub.c:2955 [inline]
kmem_cache_alloc+0x165/0x2e0 mm/slub.c:2960
f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2779 [inline]
f2fs_alloc_inode+0x26/0x410 fs/f2fs/super.c:1373
alloc_inode fs/inode.c:233 [inline]
iget_locked+0x146/0x7d0 fs/inode.c:1275
f2fs_iget+0x55/0x4dc0 fs/f2fs/inode.c:498
f2fs_lookup+0x3ee/0xce0 fs/f2fs/namei.c:544
__lookup_slow+0x2aa/0x3e0 fs/namei.c:1640
lookup_slow+0x57/0x70 fs/namei.c:1657
walk_component+0x325/0x460 fs/namei.c:1952
lookup_last fs/namei.c:2403 [inline]
path_lookupat+0x180/0x490 fs/namei.c:2427
filename_lookup+0x1d5/0x600 fs/namei.c:2460
user_path_at_empty+0x43/0x50 fs/namei.c:2740
user_path_at include/linux/namei.h:60 [inline]
vfs_statx+0xff/0x520 fs/stat.c:193
vfs_fstatat fs/stat.c:215 [inline]
vfs_lstat include/linux/fs.h:3304 [inline]
__do_sys_newlstat fs/stat.c:369 [inline]
__se_sys_newlstat+0xb8/0x320 fs/stat.c:363
__x64_sys_newlstat+0x5b/0x70 fs/stat.c:363
do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Freed by task 19:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4a/0x70 mm/kasan/common.c:45
kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370
____kasan_slab_free+0x125/0x160 mm/kasan/common.c:362
__kasan_slab_free+0x11/0x20 mm/kasan/common.c:370
kasan_slab_free include/linux/kasan.h:220 [inline]
slab_free_hook mm/slub.c:1595 [inline]
slab_free_freelist_hook+0xc5/0x190 mm/slub.c:1621
slab_free mm/slub.c:3203 [inline]
kmem_cache_free+0x100/0x2d0 mm/slub.c:3219
f2fs_free_inode+0x24/0x30 fs/f2fs/super.c:1528
i_callback+0x4c/0x70 fs/inode.c:222
rcu_do_batch+0x4df/0xa80 kernel/rcu/tree.c:2494
rcu_core+0x55f/0xd60 kernel/rcu/tree.c:2735
rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2748
__do_softirq+0x255/0x563 kernel/softirq.c:309
Last potentially related work creation:
kasan_save_stack+0x3a/0x60 mm/kasan/common.c:38
__kasan_record_aux_stack+0xd2/0x100 mm/kasan/generic.c:348
kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
__call_rcu kernel/rcu/tree.c:2976 [inline]
call_rcu+0x105/0x1040 kernel/rcu/tree.c:3050
destroy_inode fs/inode.c:288 [inline]
evict+0x857/0x910 fs/inode.c:629
iput_final fs/inode.c:1736 [inline]
iput+0x638/0x7c0 fs/inode.c:1762
do_unlinkat+0x33f/0x670 fs/namei.c:4042
__do_sys_unlink fs/namei.c:4082 [inline]
__se_sys_unlink fs/namei.c:4080 [inline]
__x64_sys_unlink+0x49/0x50 fs/namei.c:4080
do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x61/0xcb
The buggy address belongs to the object at ffff8881214319c0
which belongs to the cache f2fs_inode_cache of size 1520
The buggy address is located 944 bytes inside of
1520-byte region [ffff8881214319c0, ffff888121431fb0)
The buggy address belongs to the page:
page:ffffea0004850c00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x121430
head:ffffea0004850c00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head)
raw: 4000000000010200 dead000000000100 dead000000000122 ffff8881029d3680
raw: 0000000000000000 0000000080130013 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Reclaimable, gfp_mask 0xd2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_RECLAIMABLE), pid 284, ts 22967847224, free_ts 0
set_page_owner include/linux/page_owner.h:35 [inline]
post_alloc_hook mm/page_alloc.c:2456 [inline]
prep_new_page+0x179/0x180 mm/page_alloc.c:2462
get_page_from_freelist+0x2235/0x23d0 mm/page_alloc.c:4254
__alloc_pages_nodemask+0x268/0x5f0 mm/page_alloc.c:5357
alloc_slab_page mm/slub.c:-1 [inline]
allocate_slab mm/slub.c:1808 [inline]
new_slab+0x84/0x3f0 mm/slub.c:1869
new_slab_objects mm/slub.c:2627 [inline]
___slab_alloc+0x2a6/0x450 mm/slub.c:2791
__slab_alloc+0x63/0xa0 mm/slub.c:2831
slab_alloc_node mm/slub.c:2913 [inline]
slab_alloc mm/slub.c:2955 [inline]
kmem_cache_alloc+0x1af/0x2e0 mm/slub.c:2960
f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2779 [inline]
f2fs_alloc_inode+0x26/0x410 fs/f2fs/super.c:1373
alloc_inode fs/inode.c:233 [inline]
iget_locked+0x146/0x7d0 fs/inode.c:1275
f2fs_iget+0x55/0x4dc0 fs/f2fs/inode.c:498
f2fs_fill_super+0x39f0/0x6c70 fs/f2fs/super.c:4193
mount_bdev+0x28b/0x3a0 fs/super.c:1442
f2fs_mount+0x34/0x40 fs/f2fs/super.c:4548
legacy_get_tree+0xed/0x190 fs/fs_context.c:593
vfs_get_tree+0x89/0x260 fs/super.c:1572
do_new_mount+0x25a/0xa20 fs/namespace.c:2915
page_owner free stack trace missing
Memory state around the buggy address:
ffff888121431c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888121431c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888121431d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888121431d80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888121431e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
---
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