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VulnerabilityPublished Updated

CVE-2026-31460: Linux kernel · drm/amd/display: check if ext_caps is valid in BL setup

Affects Linux kernelSource CVE Database V5

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Not known to be exploited : upgrade to 60b0524bfb7d691ab378cdc788209f11cd34da89 or 9da4f9964abcaeb6e19797d5e3b10faad338a786 when convenient.

Data as of 5 Nov 2026, 22:32 UTC

Severity
Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-05.

Patch
Available – fixed in 60b0524bfb7d691ab378cdc788209f11cd34da89, 9da4f9964abcaeb6e19797d5e3b10faad338a786

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Upgrade Linux kernel to 60b0524bfb7d691ab378cdc788209f11cd34da89 or 9da4f9964abcaeb6e19797d5e3b10faad338a786.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 1454642960b0a4fafd48b08919d39350ee2ac372, < 60b0524bfb7d691ab378cdc788209f11cd34da89
Fixed in
  • 60b0524bfb7d691ab378cdc788209f11cd34da89
LinuxLinuxAffected
  • ≥ 1454642960b0a4fafd48b08919d39350ee2ac372, < 9da4f9964abcaeb6e19797d5e3b10faad338a786
Fixed in
  • 9da4f9964abcaeb6e19797d5e3b10faad338a786
LinuxLinuxAffected
  • =6.19
Fixed in–

AI-suggested

A fix is available and has been applied in the Linux kernel commits 60b0524bfb7d691ab378cdc788209f11cd34da89 and 9da4f9964abcaeb6e19797d5e3b10faad338a786. Users should update to a Linux kernel version that includes these commits to remediate the vulnerability.

Description

A vulnerability in the Linux kernel's AMD display driver was addressed by adding a check to ensure the ext_caps pointer is valid before accessing it during backlight setup. This prevents invalid memory access for LVDS connectors, which do not have extended backlight capabilities.

References

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