On Thu, Nov 02, 2017 at 08:53:30AM -0400, Adam Wallis wrote:
> Commit adfa543e7314 ("dmatest: don't use set_freezable_with_signal()")
> introduced a bug (that is in fact documented by the patch commit text)
> that leaves behind a dangling pointer. Since the done_wait structure is
> allocated on the stack, future invocations to the DMATEST can produce
> undesirable results (e.g., corrupted spinlocks). Ideally, this would be
> cleaned up in the thread handler, but at the very least, the kernel
> is left in a very precarious scenario that can lead to some long debug
> sessions when the crash comes later.
>
> This bug has also been captured at
> https://bugzilla.kernel.org/show_bug.cgi?id=197605
I have made it
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=197605
> Signed-off-by: Adam Wallis <awallis@xxxxxxxxxxxxxx>
and applied. Thanks
--
~Vinod
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