Andrey Savochkin wrote:
>
>
> But in del_timer() we may assume that the structure is valid during the whole
> call. I suspect that in your timer-race-6 code we may just go to the
> beginning of del_timer function after spinning on "*vtl == timer" and drop
> all the added_timer stuff.
Yes! Much better.
And check that timer->running is either 0 or 1. If it's not then
complain. This will detect use of overwritten or kfree'ed storage
(courtesy of slab poisoning).
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