gfs2: fsid=syz:syz.0: first mount done, others may mount
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4249 at include/linux/backing-dev.h:247 inode_to_wb include/linux/backing-dev.h:243 [inline]
WARNING: CPU: 1 PID: 4249 at include/linux/backing-dev.h:247 folio_account_dirtied mm/page-writeback.c:2587 [inline]
WARNING: CPU: 1 PID: 4249 at include/linux/backing-dev.h:247 __folio_mark_dirty+0x95d/0x11e0 mm/page-writeback.c:2638
Modules linked in:
CPU: 1 PID: 4249 Comm: syz-executor203 Not tainted 6.1.141-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
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+0x95d/0x11e0 mm/page-writeback.c:2638
Code: e9 6a f8 ff ff e8 a3 89 d2 ff 0f 0b e9 bb f8 ff ff e8 97 89 d2 ff 48 89 df 48 8b 74 24 18 e8 3a c5 2a 00 eb a6 e8 83 89 d2 ff <0f> 0b 43 80 3c 2c 00 0f 85 76 fb ff ff e9 79 fb ff ff 89 c2 80 e2
RSP: 0018:ffffc90003de78f8 EFLAGS: 00010093
RAX: ffffffff81ae4ced RBX: ffffea0001cec640 RCX: ffff88802db41dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: dffffc0000000000 R09: ffffed10291c27d0
R10: ffffed10291c27d0 R11: 1ffff110291c27cf R12: 1ffff110291c27cf
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888148e13e78
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f341b6ee130 CR3: 000000007b4f1000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __set_page_dirty include/linux/pagemap.h:1088 [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+0x10be/0x24e0 fs/gfs2/log.c:1116
 gfs2_kill_sb+0x50/0xd0 fs/gfs2/ops_fstype.c:1729
 deactivate_locked_super+0x93/0xf0 fs/super.c:332
 cleanup_mnt+0x463/0x4f0 fs/namespace.c:1182
 task_work_run+0x1ca/0x250 kernel/task_work.c:203
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0x936/0x2400 kernel/exit.c:871
 do_group_exit+0x217/0x2d0 kernel/exit.c:1021
 __do_sys_exit_group kernel/exit.c:1032 [inline]
 __se_sys_exit_group kernel/exit.c:1030 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1030
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f341b654b09
Code: Unable to access opcode bytes at 0x7f341b654adf.
RSP: 002b:00007ffe18053378 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f341b654b09
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f341b6f02b0 R08: ffffffffffffffb8 R09: 0000000000000006
R10: 00007ffe180532a0 R11: 0000000000000246 R12: 00007f341b6f02b0
R13: 0000000000000000 R14: 00007f341b6f1020 R15: 00007f341b623060
 </TASK>