------------[ cut here ]------------
WARNING: CPU: 0 PID: 4376 at include/linux/backing-dev.h:289 inode_to_wb include/linux/backing-dev.h:285 [inline]
WARNING: CPU: 0 PID: 4376 at include/linux/backing-dev.h:289 account_page_dirtied mm/page-writeback.c:2474 [inline]
WARNING: CPU: 0 PID: 4376 at include/linux/backing-dev.h:289 __set_page_dirty+0xaf5/0xdc0 mm/page-writeback.c:2522
Modules linked in:
CPU: 0 PID: 4376 Comm: syz.0.21 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
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: 51 d8 ff 49 ff cf e9 5b fc ff ff e8 15 51 d8 ff 48 ff cb e9 e4 fb ff ff e8 08 51 d8 ff 48 ff cb e9 c4 fc ff ff e8 fb 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:ffffc90003def5d8 EFLAGS: 00010087
RAX: ffffffff819f7a25 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc900054e9000 RSI: 000000000001c88d RDI: 000000000001c88e
RBP: ffffea0001caa8c0 R08: dffffc0000000000 R09: fffffbfff1ad323e
R10: fffffbfff1ad323e R11: 1ffffffff1ad323d R12: ffff888140847078
R13: ffff8881408471f0 R14: 1ffff11028108e3e R15: dffffc0000000000
FS:  00007f68b10266c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556dfcf808 CR3: 000000001f67e000 CR4: 00000000003506f0
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
 gfs2_inplace_reserve+0x15ba/0x35f0 fs/gfs2/rgrp.c:2198
 __gfs2_fallocate+0x999/0x1c10 fs/gfs2/file.c:1315
 gfs2_fallocate+0x339/0x470 fs/gfs2/file.c:1403
 vfs_fallocate+0x587/0x6f0 fs/open.c:308
 ksys_fallocate fs/open.c:331 [inline]
 __do_sys_fallocate fs/open.c:339 [inline]
 __se_sys_fallocate fs/open.c:337 [inline]
 __x64_sys_fallocate+0xbd/0x100 fs/open.c:337
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f68b2dbeba9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f68b1026038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f68b3005fa0 RCX: 00007f68b2dbeba9
RDX: 0000000000000a20 RSI: 0000000000000000 RDI: 000000000000000a
RBP: 00007f68b2e41e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000008000c64 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f68b3006038 R14: 00007f68b3005fa0 R15: 00007fffd99c0918
 </TASK>