Alexander Shishkin a9624ba9f7 stm class: Prevent division by zero ... commit bf7cbaae08 upstream. Using STP_POLICY_ID_SET ioctl command with dummy_stm device, or any STM device that supplies zero mmio channel size, will trigger a division by zero bug in the kernel. Prevent this by disallowing channel widths other than 1 for such devices. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Fixes: 7bd1d4093c ("stm class: Introduce an abstraction for System Trace Module devices") CC: stable@vger.kernel.org # v4.4+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-03-23 13:19:44 +01:00
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coresight	coresight: etb10: Fix handling of perf mode	2018-11-13 11:16:53 -08:00
intel_th	intel_th: msu: Fix an off-by-one in attribute store	2019-01-13 10:03:55 +01:00
stm	stm class: Prevent division by zero	2019-03-23 13:19:44 +01:00