[Dnsmasq-discuss] SEGV on dnsmasq 2.81

Simon Kelley simon at thekelleys.org.uk
Mon Mar 7 15:40:22 UTC 2022


I think it's very likely that the crash is fixed in later versions, 
based only on how old 2.81 is.

If you want to find out what the problem is and write or backport the 
fix I suggest building a binary for dnsmasq with debugging symbols and 
either running it under gdb, or enabling core dumps.

For security reasons alone, upgrading to the latest release probably 
makes sense.

Simon.




On 07/03/2022 12:05, Arjun D R wrote:
> Thanks Geert.
> Sorry to ask, can we expect this crash to be resolved with a later 
> version? Because we need to undergo a complete regression test on many 
> devices. So there could be some hesitation on such upgrades.
> Or is there a way to figure out this crash and get an upstream patch?
> 
> Regards,
> Arjun
> 
> On Mon, Mar 7, 2022 at 1:50 PM Geert Stappers via Dnsmasq-discuss 
> <dnsmasq-discuss at lists.thekelleys.org.uk 
> <mailto:dnsmasq-discuss at lists.thekelleys.org.uk>> wrote:
> 
>     On Mon, Mar 07, 2022 at 10:37:33AM +0530, Arjun D R wrote:
>      > Hi Team,
>      >
>      > We are facing a dnsmasq crash on version 2.81. We are not aware
>     of steps to
>      > trigger the crash, but we used to get this crash frequently.
>      >
>      > Crash Details:
>      >
>          ....
>      >
>      > Dnsmasq logs:
>      >
>          ....
>      >
>      > Is it a known failure/bug?
> 
> 
>      > Could you please help?
> 
>     We, being projectlead Simon Kelley and us,
>     released newer versions of Dnsmasq.
> 
>     Please try to reproduce the crash with a recent version.
>     Section "Get Code" at https://dnsmasq.org <https://dnsmasq.org> has
>     link to
>     tarballs to download and "git clone" instructions.
> 
> 
>     Groeten
>     Geert Stappers
>     -- 
>     Silence is hard to parse
> 
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> 
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