gfs2: fsid=syz:syz.0: first mount done, others may mount ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4991 at fs/gfs2/rgrp.c:2628 gfs2_rbm_from_block fs/gfs2/rgrp.c:279 [inline] WARNING: CPU: 1 PID: 4991 at fs/gfs2/rgrp.c:2628 gfs2_check_blk_type+0x449/0x670 fs/gfs2/rgrp.c:2627 Modules linked in: CPU: 1 PID: 4991 Comm: syz-executor421 Not tainted 6.4.0-rc3-syzkaller-00008-gae8373a5add4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 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 70 7b cf fd 4c 89 74 24 10 44 39 f3 76 21 e8 e1 79 cf fd 45 31 ed eb 6e e8 d7 79 cf fd <0f> 0b 41 bf f9 ff ff ff 48 8b 5c 24 18 e9 46 01 00 00 e8 c0 79 cf RSP: 0018:ffffc9000398f8c0 EFLAGS: 00010293 RAX: ffffffff83bc0218 RBX: ffff88807cbec028 RCX: ffff888021570000 RDX: 0000000000000000 RSI: 0000000000000012 RDI: 0000000000000013 RBP: ffffc9000398f9d0 R08: ffffffff83bc020e R09: ffffed100ec36579 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100f97d806 R13: ffff88807cbec000 R14: 0000000000000012 R15: 0000000000000013 FS: 000055555717d300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005593d4247008 CR3: 0000000073740000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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:435 exportfs_decode_fh+0x3c/0x70 fs/exportfs/expfs.c:575 do_handle_to_path fs/fhandle.c:152 [inline] handle_to_path fs/fhandle.c:207 [inline] do_handle_open+0x450/0x960 fs/fhandle.c:223 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: 0033:0x7f80733eb7b9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd20a75c48 EFLAGS: 00000246 ORIG_RAX: 0000000000000130 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f80733eb7b9 RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004 RBP: 00007f80733ab050 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000124d6 R11: 0000000000000246 R12: 00007f80733ab0e0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000