[SR-Users] Kamailio 4.4.4 crash in tcp_read_headers()

[Armen Babikyan]

Hi Daniel,

The server is running other protocols as well, yes, but those requests are
handled on other ports (e.g. WSS on 443/tcp, TLS on 5061/tcp).

Regarding the locals, I have updated the pastebin.

Many thanks!

Armen


On Mon, Jun 5, 2017 at 1:23 AM, Daniel-Constantin Mierla <miconda at gmail.com>
wrote:

> Hello,
>
> I see port is 5060, is it a possibility that you have multiplexing of
> websocket or other protocol (http, msrp) there?
>
> Can you also give the locals?
>
> frame 0
>
> info locals
>
> Cheers,
> Daniel
>
> On 05.06.17 05:19, Armen Babikyan wrote:
>
> Hello,
>
> Over the past few months, I've seen a smattering of kamailio crashes on
> various systems with identical backtraces: SIGSEGV in tcp_read_headers(),
> at tcp_read.c line 628. Example here:
>
> https://pastebin.com/qJ3ypnVz
>
> Note that in frame 0, print *c shows that req->parsed is pointing to an
> address exactly 8GB lower than req->buf.  That req->parsed is pointing to
> an invalid memory location, crashing kamailio when the location is
> dereferenced.  In other coredumps, I see that req->parsed is pointing to an
> address exactly 4GB lower than req->buf.
>
> Other info: This is Kamailio 4.4.4 on x86_64.  I've not had success trying
> to reproduce this yet.  Also worth noting that the crashes seem to be
> consistently associated with processing traffic from a UA connected over
> SIP/TCP; I've seen no other transport associated with this crash.
>
> Thoughts are welcome.  Thanks!
>
> Armen
>
>
>
> _______________________________________________
> Kamailio (SER) - Users Mailing Listsr-users at lists.kamailio.orghttps://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
>
> --
> Daniel-Constantin Mierlawww.twitter.com/miconda -- www.linkedin.com/in/miconda
> Kamailio Advanced Training - www.asipto.com
> Kamailio World Conference - www.kamailioworld.com
>
>
> _______________________________________________
> Kamailio (SER) - Users Mailing List
> sr-users at lists.kamailio.org
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kamailio.org/pipermail/sr-users/attachments/20170605/f9864565/attachment.html>