From: Ben Collins <bcollins@debian.org>
To: linux-kernel@vger.kernel.org
Subject: [PATCH 2.6.15-rc2] Unchecked alloc_percpu() return in __create_workqueue()
Date: Mon, 21 Nov 2005 09:35:32 -0800 [thread overview]
Message-ID: <20051121173532.GA14962@swissdisk.com> (raw)
[UBUNTU:kernel/workqueue] __create_workqueue() not checking return of alloc_percpu()
NULL dereference was possible.
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -315,6 +315,11 @@ struct workqueue_struct *__create_workqu
return NULL;
wq->cpu_wq = alloc_percpu(struct cpu_workqueue_struct);
+ if (!wq->cpu_wq) {
+ kfree(wq);
+ return NULL;
+ }
+
wq->name = name;
/* We don't need the distraction of CPUs appearing and vanishing. */
lock_cpu_hotplug();
--
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reply other threads:[~2005-11-21 18:43 UTC|newest]
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