非 root ユーザーでログアウト後、"Unable to change UID back to 0" が記録された

Solution Verified - Updated -

Issue

  • 非 root ユーザーが "su -" セッションからログアウトすると、/var/log/secure に下記メッセージが記録された。
su: pam_keyinit(su-l:session): Unable to change UID back to 0

Environment

  • Red Hat Enterprise Linux 5
  • su
  • PAM

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