gfs2: fsid=syz:syz.0: first mount done, others may mount
------------[ cut here ]------------
WARNING: fs/gfs2/rgrp.c:2628 at gfs2_check_blk_type+0x2d2/0x360 fs/gfs2/rgrp.c:2628, CPU#0: syz.0.17/5982
Modules linked in:
CPU: 0 UID: 0 PID: 5982 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:gfs2_check_blk_type+0x2d2/0x360 fs/gfs2/rgrp.c:2628
Code: 89 e7 e8 81 56 f9 ff eb a8 89 44 24 08 89 4c 24 10 e8 62 55 09 fe 48 63 44 24 08 8b 4c 24 10 e9 ab fe ff ff e8 ef 6f a0 fd 90 <0f> 0b 90 e9 72 ff ff ff 41 bf ea ff ff ff e9 74 ff ff ff e8 36 55
RSP: 0018:ffffc900030a7920 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff92000614f28 RCX: ffffffff841e64ac
RDX: ffff888028f53d00 RSI: ffffffff841e6641 RDI: 0000000000000005
RBP: ffffc900030a7a30 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff9 R11: ffff888028f54830 R12: ffffc900030a7980
R13: 0000000000000012 R14: ffff88801f39a000 R15: 00000000fffffff9
FS:  00005555799e5500(0000) GS:ffff8881248f6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fa63fff CR3: 0000000078735000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 gfs2_inode_lookup+0x75d/0x910 fs/gfs2/inode.c:192
 gfs2_lookup_by_inum+0x48/0x100 fs/gfs2/inode.c:265
 gfs2_get_dentry fs/gfs2/export.c:139 [inline]
 gfs2_fh_to_dentry+0x1a4/0x200 fs/gfs2/export.c:160
 exportfs_decode_fh_raw+0x167/0x7d0 fs/exportfs/expfs.c:456
 do_handle_to_path fs/fhandle.c:276 [inline]
 handle_to_path fs/fhandle.c:400 [inline]
 do_handle_open+0x712/0xd10 fs/fhandle.c:424
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f10c3b8f749
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:00007ffdf0a83f28 EFLAGS: 00000246 ORIG_RAX: 0000000000000130
RAX: ffffffffffffffda RBX: 00007f10c3de5fa0 RCX: 00007f10c3b8f749
RDX: 0000000000000000 RSI: 0000200000000080 RDI: 0000000000000004
RBP: 00007f10c3c13f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f10c3de5fa0 R14: 00007f10c3de5fa0 R15: 0000000000000003
 </TASK>