tree e1081bd211b1ea0857073db96b05d65e896012ac
parent 9474f4e7cd71a633fa1ef93b7daefd44bbdfd482
author James Morris <james.morris@microsoft.com> 1547682071 -0800
committer James Morris <james.morris@microsoft.com> 1547682071 -0800

LSM: Check for NULL cred-security on free

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