[syzbot] kernel BUG in rxrpc_put_call

[syzbot]

Hello,

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

Reported-and-tested-by: syzbot+4bb6356bb29d6299360e at syzkaller.appspotmail.com

Tested on:

commit:         8fed7565 Merge tag 'mlx5-fixes-2023-01-09' of git://gi..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git master
console output: https://syzkaller.appspot.com/x/log.txt?x=13b40d1c480000
kernel config:  https://syzkaller.appspot.com/x/.config?x=46221e8203c7aca6
dashboard link: https://syzkaller.appspot.com/bug?extid=4bb6356bb29d6299360e
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=11834e5a480000

Note: testing is done by a robot and is best-effort only.