Commits
Pawel Moll committed b7c1beb278e
bus: arm-ccn: Do not attempt to configure XPs for cycle counter Fuzzing the CCN perf driver revealed a small but definitely dangerous mistake in the event setup code. When a cycle counter is requested, the driver should not reconfigure the events bus at all, otherwise it will corrupt (in most but the simplest cases) its configuration and may end up accessing XP array out of its bounds and corrupting control registers. Reported-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Mark Rutland <mark.rutland@arm.com> Tested-by: Mark Rutland <mark.rutland@arm.com> Cc: stable@vger.kernel.org # 3.17+ Signed-off-by: Pawel Moll <pawel.moll@arm.com>