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@lists.thekelleys.org.uk <mailto:dnsmasq-discuss@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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