syzbot

gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
gfs2: fsid=syz:syz.s: fatal: filesystem consistency error
  inode = 1 19
  function = gfs2_jdesc_check, file = fs/gfs2/super.c, line = 119
gfs2: fsid=syz:syz.s: about to withdraw this file system
------------[ cut here ]------------
kernel BUG at fs/gfs2/util.c:333!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4445 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:gfs2_withdraw+0x141d/0x14e0 fs/gfs2/util.c:333
Code: 8d 8b 38 03 00 00 80 e1 07 80 c1 03 38 c1 0f 8c 25 fb ff ff 48 8d bb 38 03 00 00 e8 5d 1a 4b fe e9 14 fb ff ff e8 33 fa 05 fe <0f> 0b 48 8d 8b 38 03 00 00 80 e1 07 80 c1 03 38 c1 0f 8c 83 fb ff
RSP: 0018:ffffc9000314f600 EFLAGS: 00010293
RAX: ffffffff8372f86d RBX: ffff88807aa64000 RCX: ffff88807cc5d940
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: ffffc9000314f730 R08: ffff8880b902795b R09: 1ffff11017204f2b
R10: dffffc0000000000 R11: ffffed1017204f2c R12: dffffc0000000000
R13: ffff88807aa642bc R14: 1ffff92000629ecc R15: 0000000000000004
FS:  000055557f1e3500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7c2f291000 CR3: 000000007e81a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 gfs2_jdesc_check+0x137/0x290 fs/gfs2/super.c:-1
 check_journal_clean+0x186/0x360 fs/gfs2/util.c:68
 init_journal+0x182e/0x22d0 fs/gfs2/ops_fstype.c:832
 init_inodes+0xdb/0x320 fs/gfs2/ops_fstype.c:891
 gfs2_fill_super+0x1671/0x1ea0 fs/gfs2/ops_fstype.c:1249
 get_tree_bdev+0x3e6/0x610 fs/super.c:1325
 gfs2_get_tree+0x4d/0x1e0 fs/gfs2/ops_fstype.c:1332
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x247/0xa40 fs/namespace.c:3034
 do_mount fs/namespace.c:3377 [inline]
 __do_sys_mount fs/namespace.c:3585 [inline]
 __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3562
 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: 0033:0x7f8771d200ca
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffca43a4148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffca43a41d0 RCX: 00007f8771d200ca
RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffca43a4190
RBP: 0000200000000400 R08: 00007ffca43a41d0 R09: 0000000000200000
R10: 0000000000200000 R11: 0000000000000246 R12: 0000200000012500
R13: 00007ffca43a4190 R14: 00000000000125bb R15: 0000200000000f40
 </TASK>
Modules linked in:
---[ end trace 61866857a69e0340 ]---
RIP: 0010:gfs2_withdraw+0x141d/0x14e0 fs/gfs2/util.c:333
Code: 8d 8b 38 03 00 00 80 e1 07 80 c1 03 38 c1 0f 8c 25 fb ff ff 48 8d bb 38 03 00 00 e8 5d 1a 4b fe e9 14 fb ff ff e8 33 fa 05 fe <0f> 0b 48 8d 8b 38 03 00 00 80 e1 07 80 c1 03 38 c1 0f 8c 83 fb ff
RSP: 0018:ffffc9000314f600 EFLAGS: 00010293
RAX: ffffffff8372f86d RBX: ffff88807aa64000 RCX: ffff88807cc5d940
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: ffffc9000314f730 R08: ffff8880b902795b R09: 1ffff11017204f2b
R10: dffffc0000000000 R11: ffffed1017204f2c R12: dffffc0000000000
R13: ffff88807aa642bc R14: 1ffff92000629ecc R15: 0000000000000004
FS:  000055557f1e3500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f421b9a6286 CR3: 000000007e81a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400