UBUNTU-CVE-2024-38569
In the Linux kernel, the following vulnerability has been resolved: drivers/perf: hisi_pcie: 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 HISI_PCIE_MAX_COUNTERS, 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/}'
02 / AFFECTED SOFTWARE
Affected packages
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03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: drivers/perf: hisi_pcie: 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 HISI_PCIE_MAX_COUNTERS, 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/}'
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/77fce82678ea5fd51442e62febec2004f79e041b
- https://git.kernel.org/stable/c/3d1face00ebb7996842aee4214d7d0fb0c77b1e9
- https://git.kernel.org/stable/c/567d34626c22b36579ec0abfdf5eda2949044220
- https://git.kernel.org/stable/c/77fce82678ea5fd51442e62febec2004f79e041b
- https://git.kernel.org/stable/c/8e9aab2492178f25372f1820bfd9289fbd74efd0
- https://git.kernel.org/stable/c/ff48247144d13a3a0817127703724256008efa78
- https://ubuntu.com/security/CVE-2024-38569
- https://ubuntu.com/security/notices/USN-6949-1
- https://ubuntu.com/security/notices/USN-6949-2
- https://ubuntu.com/security/notices/USN-6952-1
- https://ubuntu.com/security/notices/USN-6952-2
- https://ubuntu.com/security/notices/USN-6955-1
- https://www.cve.org/CVERecord?id=CVE-2024-38569