CVE-2024-38568

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drivers/perf: hisi: hns3: Fix out-of-bound access when valid event group<br /> <br /> The perf tool allows users to create event groups through following<br /> cmd [1], but the driver does not check whether the array index is out<br /> of bounds when writing data to the event_group array. If the number of<br /> events in an event_group is greater than HNS3_PMU_MAX_HW_EVENTS, the<br /> memory write overflow of event_group array occurs.<br /> <br /> Add array index check to fix the possible array out of bounds violation,<br /> and return directly when write new events are written to array bounds.<br /> <br /> There are 9 different events in an event_group.<br /> [1] perf stat -e &amp;#39;{pmu/event1/, ... ,pmu/event9/}