On Wed, 2019-01-02 at 10:01 -0800, Shakeel Butt wrote:
> Commit 5eed6f1dff87 ("fork,memcg: fix crash in free_thread_stack on
> memcg charge fail") fixes a crash caused due to failed memcg charge
> of
> the kernel stack. However the fix misses the cached_stacks case which
> this patch fixes. So, the same crash can happen if the memcg charge
> of
> a cached stack is failed.
>
> Fixes: 5eed6f1dff87 ("fork,memcg: fix crash in free_thread_stack on
> memcg charge fail")
> Signed-off-by: Shakeel Butt <shake...@google.com>
> Cc: Rik van Riel <r...@surriel.com>
> Cc: Roman Gushchin <g...@fb.com>
> Cc: Michal Hocko <mho...@suse.com>
> Cc: Johannes Weiner <han...@cmpxchg.org>
> Cc: Tejun Heo <t...@kernel.org>
> Cc: <sta...@vger.kernel.org>Good catch. Thank you. Acked-by: Rik van Riel <r...@surriel.com> -- All Rights Reversed.
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