gfs2: fsid=syz:syz: Now mounting FS (format 1802)...
gfs2: fsid=syz:syz.0: journal 0 mapped with 26 extents in 0ms
gfs2: fsid=syz:syz.0: first mount done, o
gfs2: fsid=syz:syz.0: first mount done, others may mount
------------[ cut here ]------------
error
WARNING: fs/gfs2/rgrp.c:2628 at gfs2_check_blk_type+0x458/0x690 fs/gfs2/rgrp.c:2628, CPU#1: syz-executor.0/5851
Modules linked in:
CPU: 1 UID: 0 PID: 5851 Comm: syz-executor.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:gfs2_check_blk_type+0x458/0x690 fs/gfs2/rgrp.c:2628
Code: e0 01 00 00 8b 1b 89 df 44 89 f6 e8 d2 04 76 fd 4d 89 f5 44 39 f3 76 2e e8 b5 02 76 fd 31 db e9 84 00 00 00 e8 a9 02 76 fd 90 <0f> 0b 90 bb f9 ff ff ff 49 bd 00 00 00 00 00 fc ff df 4c 8b 64 24
RSP: 0018:ffffc90003f5f860 EFLAGS: 00010293
RAX: ffffffff8451d8a4 RBX: 0000000000000012 RCX: ffff88802a2a1f40
RDX: 0000000000000000 RSI: 0000000000000012 RDI: 0000000000000013
RBP: ffffc90003f5f950 R08: ffff8880674b6587 R09: 1ffff1100ce96cb0
R10: dffffc0000000000 R11: ffffed100ce96cb1 R12: ffff88807f3eaaf0
R13: 0000000000000013 R14: ffffc90003f5f8a0 R15: 1ffff1100fe7d564
FS:  00007f9d8d9e56c0(0000) GS:ffff888124dca000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9d8cda80c0 CR3: 00000000752ba000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 gfs2_inode_lookup+0xacb/0xc30 fs/gfs2/inode.c:192
 gfs2_lookup_by_inum+0x52/0x100 fs/gfs2/inode.c:265
 gfs2_get_dentry fs/gfs2/export.c:139 [inline]
 gfs2_fh_to_dentry+0x136/0x1f0 fs/gfs2/export.c:160
 exportfs_decode_fh_raw+0x1c8/0x770 fs/exportfs/expfs.c:456
 do_handle_to_path+0xa4/0x1a0 fs/fhandle.c:274
 handle_to_path fs/fhandle.c:409 [inline]
 do_handle_open+0x6d2/0xae0 fs/fhandle.c:433
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9d8cc6e3f9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 d0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9d8d9e5078 EFLAGS: 00000246 ORIG_RAX: 0000000000000130
RAX: ffffffffffffffda RBX: 00007f9d8cdabf80 RCX: 00007f9d8cc6e3f9
RDX: 0000000000000000 RSI: 0000000020012940 RDI: 0000000000000003
RBP: 00007f9d8cccf498 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f9d8cdabf80 R15: 00007fff69adae88
 </TASK>