Commit 5c84342a authored Sep 14, 2009 by Marc Dionne Committed by James Morris Sep 15, 2009

KEYS: Unlock tasklist when exiting early from keyctl_session_to_parent



When we exit early from keyctl_session_to_parent because of permissions or
because the session keyring is the same as the parent, we need to unlock the
tasklist.

The missing unlock causes the system to hang completely when using
keyctl(KEYCTL_SESSION_TO_PARENT) with a keyring shared with the parent.

Signed-off-by: Marc Dionne <marc.c.dionne@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>

parent 4a5d6ba1

security/keys/keyctl.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1319,6 +1319,7 @@ long keyctl_session_to_parent(void)
		already_same:
		ret = 0;
		not_permitted:
		write_unlock_irq(&tasklist_lock);
		put_cred(cred);
		return ret;

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