On Fri, 25 Mar 2005 15:34:41 +0100
Ingo Molnar <[email protected]> wrote:
> the patch below fixes a bug that i encountered while running a
> PREEMPT_RT kernel, but i believe it should be fixed in the generic
> kernel too. xfrm_policy_kill() queues a destroyed policy structure to
> the GC list, and unlocks the policy->lock spinlock _after_ that point.
> This created a scenario where GC processing got to the new structure
> first, and kfree()d it - then the write_unlock_bh() was done on the
> already kfreed structure. There is no guarantee that GC processing will
> be done after policy->lock has been dropped and softirq processing has
> been enabled.
>
> Signed-off-by: Ingo Molnar <[email protected]>
Good catch Ingo, patch applied. Thanks.
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