gfs2: fsid=syz:syz.0: first mount done, others may mount
------------[ cut here ]------------
WARNING: CPU: 0 PID: 20276 at fs/gfs2/rgrp.c:2628 gfs2_rbm_from_block fs/gfs2/rgrp.c:279 [inline]
WARNING: CPU: 0 PID: 20276 at fs/gfs2/rgrp.c:2628 gfs2_check_blk_type+0x449/0x670 fs/gfs2/rgrp.c:2627
Modules linked in:
CPU: 0 PID: 20276 Comm: syz-executor.2 Not tainted 6.5.0-rc1-syzkaller-00152-g4b810bf037e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
RIP: 0010:gfs2_check_blk_type+0x449/0x670 fs/gfs2/rgrp.c:2628
Code: 85 d2 01 00 00 8b 1b 89 df 44 89 f6 e8 60 20 cd fd 4c 89 74 24 10 44 39 f3 76 21 e8 d1 1e cd fd 45 31 ed eb 6e e8 c7 1e cd fd <0f> 0b 41 bf f9 ff ff ff 48 8b 5c 24 18 e9 46 01 00 00 e8 b0 1e cd
RSP: 0018:ffffc90009b278c0 EFLAGS: 00010283
RAX: ffffffff83bee438 RBX: ffff8880280d6688 RCX: 0000000000040000
RDX: ffffc900113b9000 RSI: 000000000000060f RDI: 0000000000000610
RBP: ffffc90009b279d0 R08: ffffffff83bee42e R09: 1ffff11011b76a58
R10: dffffc0000000000 R11: ffffed1011b76a59 R12: 1ffff1100501acd2
R13: ffff8880280d6660 R14: 0000000000000011 R15: 0000000000000012
FS:  00007f5e7f3726c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f222000 CR3: 000000002d240000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 gfs2_inode_lookup+0xb01/0xc50 fs/gfs2/inode.c:178
 gfs2_lookup_by_inum+0x51/0xf0 fs/gfs2/inode.c:250
 gfs2_get_dentry fs/gfs2/export.c:139 [inline]
 gfs2_fh_to_dentry+0x135/0x200 fs/gfs2/export.c:162
 exportfs_decode_fh_raw+0x144/0x590 fs/exportfs/expfs.c:460
 exportfs_decode_fh+0x3c/0x70 fs/exportfs/expfs.c:600
 do_handle_to_path fs/fhandle.c:159 [inline]
 handle_to_path fs/fhandle.c:214 [inline]
 do_handle_open+0x490/0x650 fs/fhandle.c:230
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f5e7e67cb29
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:00007f5e7f3720c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000130
RAX: ffffffffffffffda RBX: 00007f5e7e79bf80 RCX: 00007f5e7e67cb29
RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007f5e7e6c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f5e7e79bf80 R15: 00007ffc3d958848
 </TASK>