------------[ cut here ]------------ WARNING: CPU: 0 PID: 5788 at include/linux/backing-dev.h:256 inode_to_wb include/linux/backing-dev.h:252 [inline] WARNING: CPU: 0 PID: 5788 at include/linux/backing-dev.h:256 folio_account_dirtied mm/page-writeback.c:2640 [inline] WARNING: CPU: 0 PID: 5788 at include/linux/backing-dev.h:256 __folio_mark_dirty+0x912/0x1110 mm/page-writeback.c:2691 Modules linked in: CPU: 0 PID: 5788 Comm: syz-executor Not tainted 6.6.102-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 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+0x912/0x1110 mm/page-writeback.c:2691 Code: e9 92 f8 ff ff e8 1e 21 cf ff 0f 0b e9 d9 f8 ff ff e8 12 21 cf ff 48 89 df 48 8b 74 24 28 e8 b5 c7 2d 00 eb a6 e8 fe 20 cf ff <0f> 0b e9 84 fb ff ff 89 c2 80 e2 07 80 c2 03 38 ca 0f 8c f2 f8 ff RSP: 0018:ffffc9000456f7c0 EFLAGS: 00010093 RAX: ffffffff81b66a22 RBX: ffffea0001ad9180 RCX: ffff88807dfe8000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffea0001ad9187 R09: 1ffffd400035b230 R10: dffffc0000000000 R11: fffff9400035b231 R12: 1ffff11029190df1 R13: ffff888148c86e10 R14: 0000000000000000 R15: ffff888148c86f88 FS: 0000555588bc3500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056337ec4dd40 CR3: 0000000062e41000 CR4: 00000000003506f0 Call Trace: mark_buffer_dirty+0x26e/0x4d0 fs/buffer.c:1212 gfs2_unpin+0x125/0x9a0 fs/gfs2/lops.c:111 buf_lo_after_commit+0x15e/0x1b0 fs/gfs2/lops.c:745 lops_after_commit fs/gfs2/lops.h:51 [inline] gfs2_log_flush+0x1094/0x24b0 fs/gfs2/log.c:1117 do_sync+0x9c3/0xe00 fs/gfs2/quota.c:976 gfs2_quota_sync+0x411/0x5a0 fs/gfs2/quota.c:1344 gfs2_sync_fs+0x4c/0xb0 fs/gfs2/super.c:670 sync_filesystem+0xea/0x220 fs/sync.c:56 generic_shutdown_super+0x6f/0x2b0 fs/super.c:666 kill_block_super+0x44/0x90 fs/super.c:1660 deactivate_locked_super+0x97/0x100 fs/super.c:481 cleanup_mnt+0x429/0x4c0 fs/namespace.c:1250 task_work_run+0x1ce/0x250 kernel/task_work.c:239 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+0xb1/0x140 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302 do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f789a78ff17 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 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 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffcc8089568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f789a811c05 RCX: 00007f789a78ff17 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcc8089620 RBP: 00007ffcc8089620 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffcc808a6b0 R13: 00007f789a811c05 R14: 000000000002414f R15: 00007ffcc808a6f0