[Bug 1242746] Re: SIGSEGV when file2str reads zero bytes

Ubuntu Foundations Team Bug Bot 1242746 at bugs.launchpad.net
Mon Oct 28 16:20:42 UTC 2013


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https://bugs.launchpad.net/bugs/1242746

Title:
  SIGSEGV when file2str reads zero bytes

Status in “procps” package in Ubuntu:
  In Progress
Status in “procps” source package in Precise:
  In Progress
Status in “procps” source package in Quantal:
  In Progress
Status in “procps” source package in Raring:
  In Progress

Bug description:
  The changes made in the following commit, which backported a number of
  changes to the procps package in precise, result in various procps
  utilities crashing with a SIGSEGV if the file2str function in
  proc/readproc.c reads zero bytes.

  http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/precise/procps
  /precise-updates/revision/61

  This corresponds to the following procps package version:
  1:3.2.8-11ubuntu6.1

  Prior to this changeset, file2str would return -1 if the read failed;
  now it does not, which is not expected by other parts of the procps
  codebase, hence the crash.

  Upstream have fixed this issue in the following commit:

  https://www.gitorious.org/procps/procps/commit/526bc5dfa924177e68be0123bd67e3370955f924

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