CVE-2024-49862: powercap: intel_rapl: Fix off by one in get_rpi()

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-10-21 · updated 2026-08-04
Weakness: CWE-193

Description

In the Linux kernel, the following vulnerability has been resolved: powercap: intel_rapl: Fix off by one in get_rpi() The rp->priv->rpi array is either rpi_msr or rpi_tpmi which have NR_RAPL_PRIMITIVES number of elements. Thus the > needs to be >= to prevent an off by one access.

Affected products

Linux kernel: from 6.5 before 6.6.54; from 6.7 before 6.10.13; from 6.11 before 6.11.2 — fixed in 6.10.13, 6.11.2, 6.6.54

How to fix

Upgrade to a fixed version: Linux kernel 6.10.13, 6.11.2, 6.6.54. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/288cbc505e2046638c615c36357cb78bc9fee1e0
https://git.kernel.org/stable/c/6a34f3b0d7f11fb6ed72da315fd2360abd9c0737
https://git.kernel.org/stable/c/851e7f7f14a15f4e47b7d0f70d5c4a2b95b824d6
https://git.kernel.org/stable/c/95f6580352a7225e619551febb83595bcb77ab17

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