[Pkg-openssl-devel] Bug#848652: build fails on ppc64el, double free or corruption, stack suggests libssl

[Sebastian Andrzej Siewior]

control: reassign -1 src:resiprocate

On 2016-12-19 21:57:42 [+0100], Daniel Pocock wrote:

> Thanks for taking the time to look at this.
> 
> Is there an example of how this cleanup should be done, or is there a
> specific line of code there that you believe is out of place?

SSL_COMP_free_compression_methods() cleans libssl's memory. That is
okay. But that piece I quoted is problematic: It grabs libssl internal
pointer via SSL_COMP_get_compression_methods() and then calls free on it
while the pointer remains in libssl for later. This is bad it should not
do so.
Invoking SSL_COMP_free_compression_methods() twice would not hurt _but_
must not be done in parallel (like from two threads).
Better yet, switch to openssl 1.1.0 then none of those things have to be
done because openssl uses the pthread thread model and takes care of
this :)

> If it is definitely not an openssl issue then the bug can be moved back
> to src:resiprocate
Done.

> Regards,
> 
> Daniel

Sebastian