syzbot

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WARNING: CPU: 0 PID: 5827 at ./include/linux/backing-dev.h:254 inode_to_wb include/linux/backing-dev.h:251 [inline]
WARNING: CPU: 0 PID: 5827 at ./include/linux/backing-dev.h:254 folio_account_dirtied mm/page-writeback.c:2745 [inline]
WARNING: CPU: 0 PID: 5827 at ./include/linux/backing-dev.h:254 __folio_mark_dirty+0xa3a/0xe80 mm/page-writeback.c:2797
Modules linked in:
CPU: 0 UID: 0 PID: 5827 Comm: syz-executor261 Not tainted 6.14.0-syzkaller-01103-g2df0c02dab82 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:inode_to_wb include/linux/backing-dev.h:251 [inline]
RIP: 0010:folio_account_dirtied mm/page-writeback.c:2745 [inline]
RIP: 0010:__folio_mark_dirty+0xa3a/0xe80 mm/page-writeback.c:2797
Code: e8 0b 7f c3 ff 4c 89 ef 48 8b 34 24 e8 ef 1d 34 00 e9 4a fe ff ff e8 f5 7e c3 ff 90 0f 0b 90 e9 08 fe ff ff e8 e7 7e c3 ff 90 <0f> 0b 90 e9 00 fa ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c cc f7
RSP: 0018:ffffc90003caf880 EFLAGS: 00010093
RAX: ffffffff81ffe3e9 RBX: 0000000000000000 RCX: ffff88802c5b3c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff8880235b4cf8 R08: ffffffff81ffdde5 R09: 1ffff110046b699f
R10: dffffc0000000000 R11: ffffed10046b69a0 R12: ffff8880235b4b88
R13: ffffea0001582c00 R14: 0000000000000001 R15: 1ffff110046b699f
FS:  0000000000000000(0000) GS:ffff888125224000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000040 CR3: 000000000e938000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 mark_buffer_dirty+0x28e/0x440 fs/buffer.c:1196
 gfs2_unpin+0x129/0xa90 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+0x1190/0x2620 fs/gfs2/log.c:1115
 gfs2_kill_sb+0x5b/0x350 fs/gfs2/ops_fstype.c:1775
 deactivate_locked_super+0xc6/0x130 fs/super.c:473
 cleanup_mnt+0x422/0x4c0 fs/namespace.c:1435
 task_work_run+0x253/0x310 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xa2a/0x2940 kernel/exit.c:954
 do_group_exit+0x207/0x2c0 kernel/exit.c:1103
 __do_sys_exit_group kernel/exit.c:1114 [inline]
 __se_sys_exit_group kernel/exit.c:1112 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1112
 x64_sys_call+0x26c3/0x26d0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb9b25edb09
Code: Unable to access opcode bytes at 0x7fb9b25edadf.
RSP: 002b:00007ffc7290fd68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fb9b25edb09
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007fb9b267d2b0 R08: ffffffffffffffb8 R09: 0000000000000006
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb9b267d2b0
R13: 0000000000000000 R14: 00007fb9b267e020 R15: 00007fb9b25bc050
 </TASK>