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

[Gerd Rausch]

On 2026-02-17 09:19, Fernando Fernandez Mancera wrote:
> On 2/17/26 6:13 PM, Gerd Rausch wrote:
> > 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?
>
> Usually kernel requires the developer to understand when do they need to acquire a lock or not.
> Anyway, what would you suggest? To check whether we have acquired the lock or not and do it conditionally?> 

Something along those lines.

Either a "_locked" version of "conn_slots_available" function pointer,
a parameter, or a check.

What you suggested is fine though for the immediate syzbot need.

Thanks,

  Gerd