What’s Vulnerable › Vulnerabilities

CVE-2023-54150: drm/amd: Fix an out of bounds error in BIOS parser

• Severity: unknown
• 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: 2025-12-24 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd: Fix an out of bounds error in BIOS parser The array is hardcoded to 8 in atomfirmware.h, but firmware provides a bigger one sometimes. Deferencing the larger array causes an out of bounds error. commit 4fc1ba4aa589 ("drm/amd/display: fix array index out of bound error in bios parser") fixed some of this, but there are two other cases not covered by it. Fix those as well.

Affected products

• Linux kernel: 4.15 — fixed in 6.4

How to fix

Upgrade to a fixed version: Linux kernel 6.4. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/5675ecd2e0b00a4318ba1db1a1234e7d45b13d6b
• https://git.kernel.org/stable/c/66acfe798cd08b36cfbb65a30fab3159811304a7
• https://git.kernel.org/stable/c/b8e7589f50b709b647b642531599e70707faf70c
• https://git.kernel.org/stable/c/d116db180decec1b21bba31d2ff495ac4d8e1b83
• https://git.kernel.org/stable/c/dea2dbec716c38a0b73b6ad01d91e2b120cc5f1e

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