syzbot

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WARNING: CPU: 1 PID: 4292 at include/linux/backing-dev.h:289 inode_to_wb include/linux/backing-dev.h:285 [inline]
WARNING: CPU: 1 PID: 4292 at include/linux/backing-dev.h:289 account_page_dirtied mm/page-writeback.c:2474 [inline]
WARNING: CPU: 1 PID: 4292 at include/linux/backing-dev.h:289 __set_page_dirty+0xaf5/0xdc0 mm/page-writeback.c:2522
Modules linked in:
CPU: 1 PID: 4292 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:inode_to_wb include/linux/backing-dev.h:285 [inline]
RIP: 0010:account_page_dirtied mm/page-writeback.c:2474 [inline]
RIP: 0010:__set_page_dirty+0xaf5/0xdc0 mm/page-writeback.c:2522
Code: 50 d8 ff 49 ff cf e9 5b fc ff ff e8 65 50 d8 ff 48 ff cb e9 e4 fb ff ff e8 58 50 d8 ff 48 ff cb e9 c4 fc ff ff e8 4b 50 d8 ff <0f> 0b 43 80 3c 3e 00 0f 85 8f f9 ff ff e9 92 f9 ff ff 89 d9 80 e1
RSP: 0018:ffffc9000311f818 EFLAGS: 00010093
RAX: ffffffff819f7bc5 RBX: 0000000000000000 RCX: ffff888029b8bb80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffea0001d5b740 R08: dffffc0000000000 R09: ffffed1028b749d7
R10: ffffed1028b749d7 R11: 1ffff11028b749d6 R12: ffff888145ba4d38
R13: ffff888145ba4eb0 R14: 1ffff11028b749d6 R15: dffffc0000000000
FS:  0000555574414500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa517f85000 CR3: 0000000076478000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 mark_buffer_dirty+0x2d7/0x490 fs/buffer.c:1108
 gfs2_unpin+0x126/0x9a0 fs/gfs2/lops.c:111
 buf_lo_after_commit+0x15a/0x1a0 fs/gfs2/lops.c:750
 lops_after_commit fs/gfs2/lops.h:49 [inline]
 gfs2_log_flush+0x1145/0x2610 fs/gfs2/log.c:1108
 do_sync+0x98b/0xc00 fs/gfs2/quota.c:986
 gfs2_quota_sync+0x32c/0x6f0 fs/gfs2/quota.c:1329
 gfs2_sync_fs+0x48/0xb0 fs/gfs2/super.c:647
 sync_filesystem+0xe6/0x220 fs/sync.c:56
 generic_shutdown_super+0x6b/0x300 fs/super.c:448
 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:1148
 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+0xee/0x180 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
RIP: 0033:0x7fd3d6d809f7
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:00007ffcfadec978 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fd3d6e01d7d RCX: 00007fd3d6d809f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcfadeca30
RBP: 00007ffcfadeca30 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffcfadedac0
R13: 00007fd3d6e01d7d R14: 0000000000014ca2 R15: 00007ffcfadedb00
 </TASK>