LSM: Check for NULL cred-security on free

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commit a5795fd38e upstream.

From: Casey Schaufler <casey@schaufler-ca.com>

Check that the cred security blob has been set before trying
to clean it up. There is a case during credential initialization
that could result in this.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: James Morris <james.morris@microsoft.com>
Reported-by: syzbot+69ca07954461f189e808@syzkaller.appspotmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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James Morris 2019-01-16 15:41:11 -08:00 • committed by Greg Kroah-Hartman

parent 4917a54c02

commit 06959caf70

1 changed files with 7 additions and 0 deletions

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security/security.c

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