loop0: detected capacity change from 0 to 32768
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 4ms
gfs2: fsid=syz:syz.0: first mount done, others may mount
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5111 at fs/gfs2/rgrp.c:2630 gfs2_check_blk_type+0x44e/0x680 fs/gfs2/rgrp.c:2630
Modules linked in:
CPU: 0 UID: 0 PID: 5111 Comm: syz.0.0 Not tainted 6.11.0-rc7-syzkaller-00135-gb7718454f937 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:gfs2_check_blk_type+0x44e/0x680 fs/gfs2/rgrp.c:2630
Code: d4 01 00 00 8b 1b 89 df 44 89 f6 e8 fc be ac fd 4c 89 74 24 10 44 39 f3 76 23 e8 2d bd ac fd 45 31 ed eb 70 e8 23 bd ac fd 90 <0f> 0b 90 41 bf f9 ff ff ff 48 8b 5c 24 18 e9 46 01 00 00 e8 0a bd
RSP: 0018:ffffc9000305f8c0 EFLAGS: 00010283
RAX: ffffffff83e6cedc RBX: ffff88801a8cb028 RCX: 0000000000040000
RDX: ffffc9000b65a000 RSI: 000000000000429c RDI: 000000000000429d
RBP: ffffc9000305f9d0 R08: ffffffff83e6ced2 R09: 1ffff110082119f4
R10: dffffc0000000000 R11: ffffed10082119f5 R12: 1ffff11003519606
R13: ffff88801a8cb000 R14: 0000000000000044 R15: 0000000000000047
FS:  00007f526ddff6c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000080 CR3: 000000001e22c000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 gfs2_inode_lookup+0xb02/0xc70 fs/gfs2/inode.c:178
 gfs2_lookup_by_inum+0x51/0xf0 fs/gfs2/inode.c:251
 gfs2_get_dentry fs/gfs2/export.c:139 [inline]
 gfs2_fh_to_dentry+0x13a/0x1f0 fs/gfs2/export.c:160
 exportfs_decode_fh_raw+0x166/0x6a0 fs/exportfs/expfs.c:444
 do_handle_to_path fs/fhandle.c:209 [inline]
 handle_to_path fs/fhandle.c:310 [inline]
 do_handle_open+0x764/0x9a0 fs/fhandle.c:328
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f526df7def9
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:00007f526ddff038 EFLAGS: 00000246 ORIG_RAX: 0000000000000130
RAX: ffffffffffffffda RBX: 00007f526e135f80 RCX: 00007f526df7def9
RDX: 0000000000040100 RSI: 0000000020000280 RDI: 0000000000000004
RBP: 00007f526dff0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f526e135f80 R15: 00007ffcc2b8ef28
 </TASK>