[Bug 1441388] [NEW] numactl crashes with segfault

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numactl sometimes crashes when enumerating hardware:

root at node1:~# numactl --hardware
available: 648 nodes (0-647)
Segmentation fault

Further analysis shows that libnuma is using an uninitialised pointer,
which value depends on program layout. When layout is sufficiently
different, the pointer is non-NULL and the library parses the data
pointed to as a bitmap, crashing.

Therefore, it is possible to leverage this in an exploit.

I have fixed the issue upstream:
https://github.com/numactl/numactl/commit/6a7c2cf3f00e32082a1ada300cc585740e2b4bbd

** Affects: numactl (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: patch
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numactl crashes with segfault
https://bugs.launchpad.net/bugs/1441388
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