Bug#887640: SIGSEGVs in libcdio: double free or corruption

[Thomas Schwinge <thomas@codesourcery.com>]

Hi!

For avoidance of doubt:

On Thu, 18 Jan 2018 16:07:37 +0100, I wrote:
>     $ gdb -q --args cd-info /dev/sr1
>     [...]
>     CD-TEXT for Track  7:
>             TITLE: The Fall
>     double free or corruption (!prev)
>     
>     Program received signal SIGABRT, Aborted.

>     $ gdb -q --args cd-info /dev/sr1
>     [...]
>     CD Analysis Report
>     double free or corruption (top)
>     
>     Program received signal SIGABRT, Aborted.

I'm not reporting these issues against the auxilliary "cd-info" program,
but instead I saw problems with gvfs/the rhythmbox music player.  As can
be seen by the two patches I provided, the problem really is in libcdio
proper and usage of the "cd-info" program here was just for illustration
purposes.


Grüße
 Thomas