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Bug#950669: cups-browsed: segfault at 0 ip 00000000f79ffb5b sp 00000000fffd3828 error 4 in libc-2.29.so



Hello Thorsten,


Am 06.02.20 um 19:19 schrieb Thorsten Glaser:
> On Thu, 6 Feb 2020, Bernhard Übelacker wrote:
> 
>> Hello Thorsten,
>> getting the source of such an address is possible, even with ASLR,
>> if the library versions are known and dbgsyms are available,
>> like in attached file.
> 
> This is great. Do you mind writing this up and posting it somewhere
> so people can link and bookmark it? Perhaps even in a place aggregated
> on Planet Debian?

I made an attempt in [1], hopefully my english is not too bad...


>> It looks like a null pointer is given to strncasecmp_l.
>>
>> But you are right, this information might still not be very useful,
>> because the location is in libc - if it would be in cups-browsed it
>> would be more useful.
> 
> Yeah, at least a backtrace… sorry I can’t be more helpful.

Maybe a core could be collected with one of the
three core-dump-handler providing packages installed in [2]?

Kind regards,
Bernhard


[1] https://wiki.debian.org/InterpretingKernelOutputAtProcessCrash
[2] https://wiki.debian.org/HowToGetABacktrace#Core_dump


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