[Bug 1441388] Re: numactl crashes with segfault

[Launchpad Bug Tracker]

** Branch linked: lp:ubuntu/vivid-proposed/numactl

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https://bugs.launchpad.net/bugs/1441388

Title:
  numactl crashes with segfault

Status in numactl package in Ubuntu:
  Fix Committed

Bug description:
  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

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