[Bug 270781] Re: unix_chkpwd abnormal exit: 11 unix_chkpwd crashes under gnome-screensaver and prevents unlock (/dev/null corruption?)

[Jamie Strandboge]

** This bug is no longer flagged as a security vulnerability

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https://bugs.launchpad.net/bugs/270781

Title:
  unix_chkpwd abnormal exit: 11 unix_chkpwd crashes under  gnome-
  screensaver and prevents unlock (/dev/null corruption?)

Status in “pam” package in Ubuntu:
  Triaged
Status in “pam” package in Fedora:
  Unknown

Bug description:
  Binary package hint: libpam-modules

  I am running Ubuntu Hardy 32-Bit on a Thinkpad T61 with all updates
  available today. The gnome screensaver locks my screen after 10
  minutes idle automatically. Now in the password dialogue I can enter
  any password or string and the screen gets unlocked. In syslog you'll
  find the following error message simultaneously:

   kernel: [32810.156696] unix_chkpwd[4787] general protection
  eip:b7f86446 esp:bfd2d31c error:0

  But when I lock my screen manually, this bug doesn't occur and I have
  to type the right password to unlock the screen again.

  Some more informations:

  # lsb_release -rd
  Description:	Ubuntu 8.04.1
  Release:	8.04

  # apt-cache policy libpam-modules
  libpam-modules:
    Installed: 0.99.7.1-5ubuntu6.1
    Candidate: 0.99.7.1-5ubuntu6.1
    Version table:
   *** 0.99.7.1-5ubuntu6.1 0
          500 http://de.archive.ubuntu.com hardy-updates/main Packages
          100 /var/lib/dpkg/status
       0.99.7.1-5ubuntu6 0
          500 http://de.archive.ubuntu.com hardy/main Packages

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