Re: [PATCH] cgroup/cpuset: Fix a memory leak in update_exclusive_cpumask()

From: Tejun Heo
Date: Wed Feb 28 2024 - 13:04:47 EST


Hello,

On Tue, Feb 27, 2024 at 07:58:01PM -0500, Waiman Long wrote:
> Fix a possible memory leak in update_exclusive_cpumask() by moving the
> alloc_cpumasks() down after the validate_change() check which can fail
> and still before the temporary cpumasks are needed.
>
> Fixes: e2ffe502ba45 ("cgroup/cpuset: Add cpuset.cpus.exclusive for v2")
> Reported-by: Mirsad Todorovac <mirsad.todorovac@xxxxxx>
> Closes: https://lore.kernel.org/lkml/14915689-27a3-4cd8-80d2-9c30d0c768b6@xxxxxxxxxxxx
> Signed-off-by: Waiman Long <longman@xxxxxxxxxx>

Applied to cgroup/for-6.8-fixes with stable cc'd. Depending on when v6.9
gets cut, this might go in together with for-6.9 during rc1.

Thanks.

--
tejun