------------[ cut here ]------------
WARNING: CPU: 0 PID: 40 at include/linux/backing-dev.h:256 inode_to_wb include/linux/backing-dev.h:252 [inline]
WARNING: CPU: 0 PID: 40 at include/linux/backing-dev.h:256 folio_account_dirtied mm/page-writeback.c:2640 [inline]
WARNING: CPU: 0 PID: 40 at include/linux/backing-dev.h:256 __folio_mark_dirty+0x91c/0x1160 mm/page-writeback.c:2691
Modules linked in:
CPU: 0 PID: 40 Comm: kworker/u4:2 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026
Workqueue: writeback wb_workfn (flush-7:3)
RIP: 0010:inode_to_wb include/linux/backing-dev.h:252 [inline]
RIP: 0010:folio_account_dirtied mm/page-writeback.c:2640 [inline]
RIP: 0010:__folio_mark_dirty+0x91c/0x1160 mm/page-writeback.c:2691
Code: e9 88 f8 ff ff e8 b4 05 ce ff 0f 0b e9 cf f8 ff ff e8 a8 05 ce ff 48 89 df 48 8b 74 24 10 e8 bb 92 2e 00 eb a6 e8 94 05 ce ff <0f> 0b e9 69 fb ff ff 89 c2 80 e2 07 80 c2 03 38 ca 0f 8c e8 f8 ff
RSP: 0018:ffffc90000b0f168 EFLAGS: 00010093
RAX: ffffffff81b9d90c RBX: ffffea0001f4c900 RCX: ffff88801e24da00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffea0001f4c907 R09: 1ffffd40003e9920
R10: dffffc0000000000 R11: fffff940003e9921 R12: 0000000000000000
R13: ffff888148c870a0 R14: 1ffff11029190e43 R15: ffff888148c87218
FS:  0000000000000000(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000003a840 CR3: 00000000311b6000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 mark_buffer_dirty+0x26e/0x4d0 fs/buffer.c:1212
 gfs2_unpin+0x125/0xa00 fs/gfs2/lops.c:111
 buf_lo_after_commit+0x165/0x1b0 fs/gfs2/lops.c:745
 lops_after_commit fs/gfs2/lops.h:51 [inline]
 __gfs2_log_flush+0x10c5/0x24d0 fs/gfs2/log.c:1118
 gfs2_log_flush+0x34/0x50 fs/gfs2/log.c:1180
 gfs2_write_inode+0x1ec/0x370 fs/gfs2/super.c:459
 write_inode fs/fs-writeback.c:1549 [inline]
 __writeback_single_inode+0x720/0xee0 fs/fs-writeback.c:1766
 writeback_sb_inodes+0x813/0x1020 fs/fs-writeback.c:1992
 wb_writeback+0x45e/0xbe0 fs/fs-writeback.c:2171
 wb_do_writeback fs/fs-writeback.c:2318 [inline]
 wb_workfn+0x400/0xe60 fs/fs-writeback.c:2358
 process_one_work kernel/workqueue.c:2657 [inline]
 process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2734
 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2815
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>