gfs2: fsid=syz:syz.0: first mount done, others may mount
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5446 at include/linux/backing-dev.h:252 inode_to_wb include/linux/backing-dev.h:252 [inline]
WARNING: CPU: 1 PID: 5446 at include/linux/backing-dev.h:252 folio_account_dirtied mm/page-writeback.c:2618 [inline]
WARNING: CPU: 1 PID: 5446 at include/linux/backing-dev.h:252 __folio_mark_dirty+0xa2b/0xe10 mm/page-writeback.c:2669
Modules linked in:
CPU: 1 PID: 5446 Comm: syz-executor.0 Not tainted 6.6.0-rc5-syzkaller-g94f6f0550c62 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:inode_to_wb include/linux/backing-dev.h:252 [inline]
RIP: 0010:folio_account_dirtied mm/page-writeback.c:2618 [inline]
RIP: 0010:__folio_mark_dirty+0xa2b/0xe10 mm/page-writeback.c:2669
Code: ff ff ff 48 8d 78 70 e8 43 59 87 08 31 ff 89 c6 89 44 24 08 e8 d6 37 cf ff 8b 44 24 08 85 c0 0f 85 70 fa ff ff e8 55 3c cf ff <0f> 0b e9 64 fa ff ff e8 49 3c cf ff 0f 0b e9 7f f6 ff ff e8 3d 3c
RSP: 0018:ffffc90003537180 EFLAGS: 00010093
RAX: 0000000000000000 RBX: ffffea0000a65840 RCX: 0000000000000000
RDX: ffff88802ce3c9c0 RSI: ffffffff81b788ab RDI: 0000000000000005
RBP: 0000000000000293 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000004 R12: ffff8880298b2d38
R13: ffff8881044dc910 R14: 0000000000000001 R15: ffff8881044dcab8
FS:  00007ffaa705a6c0(0000) GS:ffff88806b700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c44459cfa8 CR3: 000000002657a000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 mark_buffer_dirty+0x31e/0x3e0 fs/buffer.c:1212
 gfs2_unpin+0x103/0xc50 fs/gfs2/lops.c:111
 buf_lo_after_commit+0x141/0x210 fs/gfs2/lops.c:745
 lops_after_commit fs/gfs2/lops.h:49 [inline]
 gfs2_log_flush+0x1451/0x27f0 fs/gfs2/log.c:1115
 gfs2_write_inode+0x24a/0x4b0 fs/gfs2/super.c:453
 write_inode fs/fs-writeback.c:1456 [inline]
 __writeback_single_inode+0xa81/0xe70 fs/fs-writeback.c:1673
 writeback_single_inode+0x2af/0x590 fs/fs-writeback.c:1729
 sync_inode_metadata+0xa5/0xe0 fs/fs-writeback.c:2791
 gfs2_fsync+0x218/0x380 fs/gfs2/file.c:761
 vfs_fsync_range+0x141/0x220 fs/sync.c:188
 generic_write_sync include/linux/fs.h:2584 [inline]
 gfs2_file_write_iter+0xd97/0x10c0 fs/gfs2/file.c:1150
 call_write_iter include/linux/fs.h:1956 [inline]
 do_iter_readv_writev+0x21e/0x3c0 fs/read_write.c:735
 do_iter_write+0x17f/0x830 fs/read_write.c:860
 vfs_iter_write+0x7a/0xb0 fs/read_write.c:901
 iter_file_splice_write+0x698/0xbf0 fs/splice.c:736
 do_splice_from fs/splice.c:933 [inline]
 direct_splice_actor+0x118/0x180 fs/splice.c:1142
 splice_direct_to_actor+0x347/0xa30 fs/splice.c:1088
 do_splice_direct+0x1af/0x280 fs/splice.c:1194
 do_sendfile+0xb88/0x1390 fs/read_write.c:1254
 __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 __se_sys_sendfile64 fs/read_write.c:1308 [inline]
 __x64_sys_sendfile64+0x1d6/0x220 fs/read_write.c:1308
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ffaa627cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffaa705a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007ffaa639bf80 RCX: 00007ffaa627cae9
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006
RBP: 00007ffaa62c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201004 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007ffaa639bf80 R15: 00007fffbd67b028
 </TASK>