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KEYS: Unlock tasklist when exiting early from keyctl_session_to_parent

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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>
This commit is contained in:
Marc Dionne 2009-09-14 12:46:23 +01:00 committed by James Morris
parent 4a5d6ba191
commit 5c84342a3e
1 changed files with 1 additions and 0 deletions
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security/keys/keyctl.c
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@ -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;