gfs2: fsid=syz:syz.0: first mount done, others may mount ------------[ cut here ]------------ WARNING: CPU: 1 PID: 22324 at fs/gfs2/rgrp.c:2630 gfs2_check_blk_type+0x44e/0x680 fs/gfs2/rgrp.c:2630 Modules linked in: CPU: 1 PID: 22324 Comm: syz-executor.2 Not tainted 6.8.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 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 4c 49 bd fd 4c 89 74 24 10 44 39 f3 76 23 e8 7d 47 bd fd 45 31 ed eb 70 e8 73 47 bd fd 90 <0f> 0b 90 41 bf f9 ff ff ff 48 8b 5c 24 18 e9 46 01 00 00 e8 5a 47 RSP: 0018:ffffc900043f78c0 EFLAGS: 00010283 RAX: ffffffff83d6242c RBX: ffff888032648e80 RCX: 0000000000040000 RDX: ffffc90009d61000 RSI: 00000000000018f7 RDI: 00000000000018f8 RBP: ffffc900043f79d0 R08: ffffffff83d62422 R09: 1ffff110100b6e40 R10: dffffc0000000000 R11: ffffed10100b6e41 R12: 1ffff110064c91d1 R13: ffff888032648e58 R14: 0000000000000012 R15: 0000000000000013 FS: 00007f6c54a426c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f026340a000 CR3: 0000000024050000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_inode_lookup+0xb05/0xc60 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+0x152/0x5f0 fs/exportfs/expfs.c:444 exportfs_decode_fh+0x3c/0x80 fs/exportfs/expfs.c:584 do_handle_to_path fs/fhandle.c:155 [inline] handle_to_path fs/fhandle.c:210 [inline] do_handle_open+0x494/0x650 fs/fhandle.c:226 do_syscall_64+0xf9/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f6c53c7dda9 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:00007f6c54a420c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000130 RAX: ffffffffffffffda RBX: 00007f6c53dabf80 RCX: 00007f6c53c7dda9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000004 RBP: 00007f6c53cca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f6c53dabf80 R15: 00007ffe4c7af518