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apparmor: Fix ref count leak in task_kill

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[ Upstream commit 2cb54a19ac7153b9a26a72098c495187f64c2276 ]

apparmor_task_kill was not putting the task_cred reference tc, or the
cred_label reference tc when dealing with a passed in cred, fix this
by using a single fn exit.

Fixes: 90c436a64a6e ("apparmor: pass cred through to audit info.")
Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
John Johansen 2023-12-29 06:54:41 -08:00 committed by Greg Kroah-Hartman
parent 5125a30299
commit 790321e4ae
1 changed files with 0 additions and 1 deletions
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security/apparmor/lsm.c
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@ -839,7 +839,6 @@ static int apparmor_task_kill(struct task_struct *target, struct kernel_siginfo
cl = aa_get_newest_cred_label(cred);
error = aa_may_signal(cred, cl, tc, tl, sig);
aa_put_label(cl);
return error;
} else {
cl = __begin_current_label_crit_section();
error = aa_may_signal(current_cred(), cl, tc, tl, sig);