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Unrated severityNVD Advisory· Published Jun 19, 2024· Updated May 4, 2025

drivers/perf: hisi: hns3: Fix out-of-bound access when valid event group

CVE-2024-38568

Description

In the Linux kernel, the following vulnerability has been resolved:

drivers/perf: hisi: hns3: Fix out-of-bound access when valid event group

The perf tool allows users to create event groups through following cmd [1], but the driver does not check whether the array index is out of bounds when writing data to the event_group array. If the number of events in an event_group is greater than HNS3_PMU_MAX_HW_EVENTS, the memory write overflow of event_group array occurs.

Add array index check to fix the possible array out of bounds violation, and return directly when write new events are written to array bounds.

There are 9 different events in an event_group. [1] perf stat -e '{pmu/event1/, ... ,pmu/event9/}

Affected products

95

Patches

0

No patches discovered yet.

Vulnerability mechanics

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References

5

News mentions

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