CVE-2024-38568: drivers/perf: hisi: hns3: Fix out-of-bound access when valid event group
First published: Wed Jun 19 2024(Updated: )
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/}
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=6.0<6.1.93 | |
| Linux Linux kernel | >=6.2<6.6.33 | |
| Linux Linux kernel | >=6.7<6.8.12 | |
| Linux Linux kernel | >=6.9<6.9.3 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.12.6-1 6.12.8-1 |
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Reference Links
- https://git.kernel.org/stable/c/3669baf308308385a2ab391324abdde5682af5aa
- https://git.kernel.org/stable/c/81bdd60a3d1d3b05e6cc6674845afb1694dd3a0e
- https://git.kernel.org/stable/c/aa2d3d678895c8eedd003f1473f87d3f06fe6ec7
- https://git.kernel.org/stable/c/b5120d322763c15c978bc47beb3b6dff45624304
- https://git.kernel.org/stable/c/be1fa711e59c874d049f592aef1d4685bdd22bdf
- https://launchpad.net/bugs/cve/CVE-2024-38568
- https://git.kernel.org/linus/81bdd60a3d1d3b05e6cc6674845afb1694dd3a0e
- https://security-tracker.debian.org/tracker/CVE-2024-38568
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38568
- https://nvd.nist.gov/vuln/detail/CVE-2024-38568
- https://ubuntu.com/security/CVE-2024-38568
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