------------[ cut here ]------------
error
WARNING: fs/gfs2/rgrp.c:2628 at gfs2_check_blk_type+0x2da/0x370 fs/gfs2/rgrp.c:2628, CPU#1: syz-executor.0/6117
Modules linked in:
CPU: 1 UID: 0 PID: 6117 Comm: syz-executor.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:gfs2_check_blk_type+0x2da/0x370 fs/gfs2/rgrp.c:2628
Code: 89 e7 e8 19 a5 f9 ff eb a8 89 44 24 08 89 4c 24 18 e8 aa 86 0a fe 48 63 44 24 08 8b 4c 24 18 e9 ab fe ff ff e8 f7 f7 9d fd 90 <0f> 0b 90 41 bf f9 ff ff ff e9 6c ff ff ff 41 bf ea ff ff ff e9 6e
RSP: 0018:ffffc900033c7910 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff92000678f26 RCX: ffffffff846afc54
RDX: ffff8880230524c0 RSI: ffffffff846afde9 RDI: ffff8880230524c0
RBP: ffffc900033c7a20 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff9 R11: 1ffffffff1cfe5c1 R12: ffffc900033c7970
R13: 0000000000000012 R14: ffff88803af84b28 R15: 00000000fffffff9
FS:  00007f79496446c0(0000) GS:ffff8880d643f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f79488e1c4e CR3: 000000002b7d6000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 gfs2_inode_lookup+0x765/0x920 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+0x18e/0x200 fs/gfs2/export.c:160
 exportfs_decode_fh_raw+0x167/0x760 fs/exportfs/expfs.c:457
 do_handle_to_path fs/fhandle.c:274 [inline]
 handle_to_path fs/fhandle.c:397 [inline]
 do_handle_open+0x744/0xce0 fs/fhandle.c:421
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f794886e3b9
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:00007f7949644078 EFLAGS: 00000246 ORIG_RAX: 0000000000000130
RAX: ffffffffffffffda RBX: 00007f79489abf80 RCX: 00007f794886e3b9
RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004
RBP: 00007f79488cf498 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f79489abf80 R15: 00007ffdc0771098
 </TASK>