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[Seth Arnold <1526548@xxxxxxxxxxxxxxxxxx>]

** Attachment added: "Reproducer file"
   https://bugs.launchpad.net/ubuntu/+source/grep/+bug/1526548/+attachment/4535328/+files/lightdm-guest-session

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

Title:
  grep 2.22 infinite loop

Status in grep package in Ubuntu:
  New

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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