[Bug 1526548] Re: grep 2.22 infinite loop

[Launchpad Bug Tracker]

This bug was fixed in the package grep - 2.22-1ubuntu2

---------------
grep (2.22-1ubuntu2) xenial; urgency=medium

  * Mark tests/long-pattern-perf as expensive, instead of lowering the
    build options (patch taken from upstream).

 -- Matthias Klose <doko at ubuntu.com>  Wed, 10 Feb 2016 17:22:07 +0100

** Changed in: grep (Ubuntu)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1526548

Title:
  grep 2.22 infinite loop

Status in grep package in Ubuntu:
  Fix Released

Bug description:
  Christian Boltz discovered that grep 2.22 can be sent into an infinite
  loop. 2.21 does not have this issue. The reproducer we have available
  so far:

  grep -obUa -P '\x04\x08\x00profile\x00\x07' /etc/apparmor.d/cache/*

  Probably one of the files in that directory will report infinite
  output in the style of:

  # grep -obUa -P '\x04\x08\x00profile\x00\x07' cache--usr.sbin.smbldap-useradd  
  16profile
  27801profile
  27801profile
  27801profile
  27801profile
  27801profile
  ...

  Thanks

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