[Authentication] Packagekit segfaults when realmd tries to look up required packages

[Niklas Andersson]

...forgot to add versions:

packagekit 0.8.17-4ubuntu6~gcc5.4ubuntu1
realmd                                        0.16.2-2


On 19/04/16 13:55, Niklas Andersson wrote:
> Hi,
>
>  Where is the best place to report this bug?
>
>  It occurs on Ubuntu 16.04. When realmd tries to do the lookup of 
> required packages it talks to packagekitd that segfaults.
>
> Here is the back trace:
>
> Starting program: /usr/lib/packagekit/packagekitd
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library 
> "/lib/x86_64-linux-gnu/libthread_db.so.1".
> [New Thread 0x7ffff4ceb700 (LWP 1292)]
> [New Thread 0x7ffff44ea700 (LWP 1293)]
> [New Thread 0x7ffff3ce9700 (LWP 1294)]
> [New Thread 0x7ffff2431700 (LWP 1295)]
> [Thread 0x7ffff2431700 (LWP 1295) exited]
> [New Thread 0x7ffff2431700 (LWP 1307)]
>
> Thread 6 "PK-Backend" received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0x7ffff2431700 (LWP 1307)]
> strlen () at ../sysdeps/x86_64/strlen.S:106
> 106    ../sysdeps/x86_64/strlen.S: No such file or directory.
> (gdb) bt
> #0  strlen () at ../sysdeps/x86_64/strlen.S:106
> #1  0x00007ffff65efba9 in __add_to_environ (
>     name=name at entry=0x7ffff1a289ef "http_proxy", value=value at entry=0x0,
>     combined=combined at entry=0x0, replace=replace at entry=1) at setenv.c:131
> #2  0x00007ffff65efcca in __setenv (
>     name=name at entry=0x7ffff1a289ef "http_proxy", value=value at entry=0x0,
>     replace=replace at entry=1) at setenv.c:259
> #3  0x00007ffff1a175cf in AptIntf::init (this=this at entry=0x55555585b070)
>     at apt-intf.cpp:94
> #4  0x00007ffff1a24c00 in pk_backend_resolve_thread (job=<optimized out>,
>     params=<optimized out>, user_data=<optimized out>)
>     at pk-backend-aptcc.cpp:685
> #5  0x000055555556e419 in pk_backend_job_thread_setup (
>     thread_data=0x555555859df0) at pk-backend-job.c:792
> #6  0x00007ffff6c0cb45 in ?? () from 
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #7  0x00007ffff69866fa in start_thread (arg=0x7ffff2431700)
>     at pthread_create.c:333
> #8  0x00007ffff66bcb5d in clone ()
>     at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
> (gdb)
>
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