3fb4601e0d
commit d3b17c6d9dddc2db3670bc9be628b122416a3d26 upstream.
Using completion_done to determine whether the caller has gone
away only works after a complete call. Furthermore it's still
possible that the caller has not yet called wait_for_completion,
resulting in another potential UAF.
Fix this by making the caller use cancel_work_sync and then freeing
the memory safely.
Fixes: 7d42e097607c ("crypto: qat - resolve race condition during AER recovery")
Cc: <stable@vger.kernel.org> #6.8+
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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| qat_4xxx | ||
| qat_c3xxx | ||
| qat_c3xxxvf | ||
| qat_c62x | ||
| qat_c62xvf | ||
| qat_common | ||
| qat_dh895xcc | ||
| qat_dh895xccvf | ||
| Kconfig | ||
| Makefile | ||