CVE-2022-48979: drm/amd/display: fix array index out of bound error in DCN32 DML

Severity: medium (CVSS 5.5 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 2026-08-13
Weakness: CWE-129

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix array index out of bound error in DCN32 DML [Why&How] LinkCapacitySupport array is indexed with the number of voltage states and not the number of max DPPs. Fix the error by changing the array declaration to use the correct (larger) array size of total number of voltage states.

Affected products

Linux kernel: before 6.0.13; 6.1-rc1, 6.1-rc2, 6.1-rc3, 6.1-rc4, 6.1-rc5, 6.1-rc6 (+2) — fixed in 6.0.13

How to fix

Upgrade to a fixed version: Linux kernel 6.0.13. Check the vendor advisory for mitigations.

References

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