Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+3affdbfc986ecd9200fd@syzkaller.appspotmail.com
Tested-by: syzbot+3affdbfc986ecd9200fd@syzkaller.appspotmail.com

Tested on:

commit:         767faff2 vsock/bpf: return early if transport is not a..
git tree:       https://github.com/stefano-garzarella/linux.git fix-vsock-null-transport
console output: https://syzkaller.appspot.com/x/log.txt?x=17c9d4b0580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=4ef22c4fce5135b4
dashboard link: https://syzkaller.appspot.com/bug?extid=3affdbfc986ecd9200fd
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Note: no patches were applied.
Note: testing is done by a robot and is best-effort only.