syzbot

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WARNING: CPU: 1 PID: 4382 at include/linux/backing-dev.h:247 inode_to_wb include/linux/backing-dev.h:243 [inline]
WARNING: CPU: 1 PID: 4382 at include/linux/backing-dev.h:247 folio_account_dirtied mm/page-writeback.c:2587 [inline]
WARNING: CPU: 1 PID: 4382 at include/linux/backing-dev.h:247 __folio_mark_dirty+0x937/0x11c0 mm/page-writeback.c:2638
Modules linked in:
CPU: 1 PID: 4382 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:inode_to_wb include/linux/backing-dev.h:243 [inline]
RIP: 0010:folio_account_dirtied mm/page-writeback.c:2587 [inline]
RIP: 0010:__folio_mark_dirty+0x937/0x11c0 mm/page-writeback.c:2638
Code: e9 90 f8 ff ff e8 49 75 d3 ff 0f 0b e9 e1 f8 ff ff e8 3d 75 d3 ff 48 89 df 48 8b 74 24 18 e8 90 57 2b 00 eb a6 e8 29 75 d3 ff <0f> 0b 43 80 3c 2c 00 0f 85 9c fb ff ff e9 9f fb ff ff 89 c2 80 e2
RSP: 0018:ffffc90003347a58 EFLAGS: 00010093
RAX: ffffffff81af0677 RBX: ffffea0001cc7c80 RCX: ffff888027ab1e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffff88801796c987 R09: 1ffff11002f2d930
R10: dffffc0000000000 R11: ffffed1002f2d931 R12: 1ffff11002f2d930
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88801796c980
FS:  000055555b608500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555b623a38 CR3: 000000002fafd000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __set_page_dirty include/linux/pagemap.h:1090 [inline]
 mark_buffer_dirty+0x33f/0x7a0 fs/buffer.c:1105
 gfs2_unpin+0x125/0x9a0 fs/gfs2/lops.c:111
 buf_lo_after_commit+0x15a/0x1a0 fs/gfs2/lops.c:747
 lops_after_commit fs/gfs2/lops.h:49 [inline]
 __gfs2_log_flush+0x11c5/0x2600 fs/gfs2/log.c:1118
 gfs2_log_flush+0x30/0x40 fs/gfs2/log.c:1180
 gfs2_kill_sb+0x50/0xd0 fs/gfs2/ops_fstype.c:1729
 deactivate_locked_super+0x93/0xf0 fs/super.c:332
 cleanup_mnt+0x42c/0x4b0 fs/namespace.c:1191
 task_work_run+0x1d0/0x260 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f8502b9e097
Code: a2 c7 05 5c 06 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffd5f20d098 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f8502c321ca RCX: 00007f8502b9e097
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd5f20d150
RBP: 00007ffd5f20d150 R08: 00007ffd5f20e150 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd5f20e1e0
R13: 00007f8502c321ca R14: 00000000000150ac R15: 00007ffd5f20e220
 </TASK>