gfs2: fsid=syz:syz.0: first mount done, others may mount
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5312 at include/linux/backing-dev.h:254 inode_to_wb include/linux/backing-dev.h:251 [inline]
WARNING: CPU: 0 PID: 5312 at include/linux/backing-dev.h:254 folio_account_dirtied mm/page-writeback.c:2743 [inline]
WARNING: CPU: 0 PID: 5312 at include/linux/backing-dev.h:254 __folio_mark_dirty+0x907/0xed0 mm/page-writeback.c:2797
Modules linked in:
CPU: 0 UID: 0 PID: 5312 Comm: syz-executor129 Not tainted 6.12.0-rc7-syzkaller-00187-gf868cd251776 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:inode_to_wb include/linux/backing-dev.h:251 [inline]
RIP: 0010:folio_account_dirtied mm/page-writeback.c:2743 [inline]
RIP: 0010:__folio_mark_dirty+0x907/0xed0 mm/page-writeback.c:2797
Code: f9 ff ff e8 8b bf c4 ff 4c 89 f7 48 8b 34 24 e8 2f 0e 38 00 eb 87 e8 78 bf c4 ff 90 0f 0b 90 e9 45 ff ff ff e8 6a bf c4 ff 90 <0f> 0b 90 e9 40 fb ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 07 f9
RSP: 0018:ffffc9000d03f890 EFLAGS: 00010093
RAX: ffffffff81d02aa6 RBX: 0000000000000000 RCX: ffff888000ee4880
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff888031cd4cf8 R08: ffffffff81d025e2 R09: 1ffff1100639a99f
R10: dffffc0000000000 R11: ffffed100639a9a0 R12: 0000000000000001
R13: ffff888031cd4b88 R14: ffffea000111fc40 R15: 1ffff1100639a99f
FS:  0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3cc65ec038 CR3: 000000000e734000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 mark_buffer_dirty+0x2a4/0x520 fs/buffer.c:1201
 gfs2_unpin+0x129/0xa60 fs/gfs2/lops.c:111
 buf_lo_after_commit+0x14f/0x1a0 fs/gfs2/lops.c:738
 lops_after_commit fs/gfs2/lops.h:51 [inline]
 gfs2_log_flush+0x118d/0x2610 fs/gfs2/log.c:1115
 gfs2_kill_sb+0x5b/0x350 fs/gfs2/ops_fstype.c:1775
 deactivate_locked_super+0xc4/0x130 fs/super.c:473
 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373
 task_work_run+0x24f/0x310 kernel/task_work.c:239
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0xa2f/0x28e0 kernel/exit.c:939
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 __do_sys_exit_group kernel/exit.c:1099 [inline]
 __se_sys_exit_group kernel/exit.c:1097 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1097
 x64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3cc65a1a89
Code: Unable to access opcode bytes at 0x7f3cc65a1a5f.
RSP: 002b:00007ffea5ae6938 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f3cc65a1a89
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f3cc66302d0 R08: ffffffffffffffb8 R09: 0000000000000006
R10: 00000000000124df R11: 0000000000000246 R12: 00007f3cc66302d0
R13: 0000000000000000 R14: 00007f3cc6631040 R15: 00007f3cc656ffe0
 </TASK>