gfs2: fsid=loop0.0: first mount done, others may mount
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5457 at fs/gfs2/rgrp.c:2628 gfs2_rbm_from_block fs/gfs2/rgrp.c:279 [inline]
WARNING: CPU: 1 PID: 5457 at fs/gfs2/rgrp.c:2628 gfs2_check_blk_type+0x445/0x670 fs/gfs2/rgrp.c:2627
Modules linked in:
CPU: 1 PID: 5457 Comm: syz-executor.0 Not tainted 6.6.0-rc1-syzkaller-00196-g57d88e8a5974 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
RIP: 0010:gfs2_check_blk_type+0x445/0x670 fs/gfs2/rgrp.c:2628
Code: 85 d2 01 00 00 8b 1b 89 df 44 89 f6 e8 b4 a5 ca fd 4c 89 74 24 10 44 39 f3 76 21 e8 45 a4 ca fd 45 31 ed eb 6e e8 3b a4 ca fd <0f> 0b 41 bf f9 ff ff ff 48 8b 5c 24 18 e9 46 01 00 00 e8 24 a4 ca
RSP: 0018:ffffc900057d78c0 EFLAGS: 00010293
RAX: ffffffff83c230e4 RBX: ffff888027e80028 RCX: ffff8880259f1dc0
RDX: 0000000000000000 RSI: 0000000000000012 RDI: 0000000000000013
RBP: ffffc900057d79d0 R08: ffffffff83c230da R09: 1ffff1100d0a93e8
R10: dffffc0000000000 R11: ffffed100d0a93e9 R12: 1ffff11004fd0006
R13: ffff888027e80000 R14: 0000000000000012 R15: 0000000000000013
FS:  00007f79ca4206c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f79c97980c0 CR3: 0000000069d92000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 gfs2_inode_lookup+0xafd/0xc50 fs/gfs2/inode.c:178
 gfs2_lookup_by_inum+0x4d/0xe0 fs/gfs2/inode.c:250
 gfs2_get_dentry fs/gfs2/export.c:139 [inline]
 gfs2_fh_to_dentry+0x131/0x1f0 fs/gfs2/export.c:162
 exportfs_decode_fh_raw+0x140/0x590 fs/exportfs/expfs.c:461
 exportfs_decode_fh+0x38/0x70 fs/exportfs/expfs.c:601
 do_handle_to_path fs/fhandle.c:159 [inline]
 handle_to_path fs/fhandle.c:214 [inline]
 do_handle_open+0x48c/0x650 fs/fhandle.c:230
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f79c967cae9
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:00007f79ca4200c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000130
RAX: ffffffffffffffda RBX: 00007f79c979bf80 RCX: 00007f79c967cae9
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003
RBP: 00007f79c96c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f79c979bf80 R15: 00007fff52279e38
 </TASK>