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

[Daniel-Constantin Mierla]

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
>
>
>
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-- 
Daniel-Constantin Mierla
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