BIRD 2.17 crash on Debian 12 / kernel 6.1.0-33 apparently related to TCP-AO ocde

[Ondrej Zajicek]

On Tue, Apr 22, 2025 at 05:07:05PM +0200, Radu-Adrian Feurdean wrote:
> Hello,
> 
> Just found this morning a condition that crashes BIRD 2.17 (nic.cz <http://nic.cz/> .deb version for Debian 12) on today’s up-to-date Deb12.
> The issue seems to be related to the TCP-AO code.
> GDB tells me this:
> 
> (gdb) bt full
> #0  0x0000556005dcd7f0 in bgp_incoming_connection (sk=0x55603a779860, dummy=<optimized out>) at proto/bgp/bgp.c:1705
>         p = 0x55603a79c750
>         acc = <optimized out>
>         hops = <optimized out>
> 
> Please let mw know how should I send you a coredump (I actually have 2), if needed.

That could be useful. Do you use TCP-AO, or is it just the same as the old setup?

> I have also identified the pice of config that turns on the behaviour.

Which one is that?

-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
"To err is human -- to blame it on a computer is even more so."