Re: [syzbot] [net?] possible deadlock in inet6_getname

[Gerd Rausch]

Hi,

On 2026-02-17 09:03, Fernando Fernandez Mancera wrote:
> > rds_tcp_conn_slots_available() can also be called from rds_conn_shutdown(),
> > where no "rds_tcp.ko" backend specific lock is held.
>
>
> AFAICS, from rds_conn_shutdown() path rds_tcp_conn_slots_available() is called with fan-out argument as false. Therefore, no need to get the peer source port.
>
> I think that should be fine.

True, but IMHO subtle and error-prone.

If someone were to change the code to pass in "fan_out == true"
from a context not already holding a socket lock,
would they remember to change rds_tcp_conn_slots_available()
to acquire that lock?

Thanks,

  Gerd