SECUFOCUSNOW
Home›CVE index›CVE-2026-31488
Review reviewHigh

CVE-2026-31488

Linux Linux, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.8 Telecommunications Update Service

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Do not skip unrelated mode changes in DSC validation Starting with commit 17ce8a6907f7 ("drm/amd/display: Add dsc pre-validation in atomic check"), amdgpu resets the CRTC state mode_changed flag to false when recomputing the DSC configuration results in no timing change for a particular stream. However, this is incorrect in scenarios where a change in MST/DSC configuration happens in the same KMS commit as another (unrelated) mode change. For example, the integrated panel of a laptop may be configured diffe...

CVSS
7.8
EPSS
0.14%
3.80% percentile
CISA KEV
Not listed
Published
2026.04.22
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.14%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Do not skip unrelated mode changes in DSC validation Starting with commit 17ce8a6907f7 ("drm/amd/display: Add dsc pre-validation in atomic check"), amdgpu resets the CRTC state mode_changed flag to false when recomputing the DSC configuration results in no timing change for a particular stream. However, this is incorrect in scenarios where a change in MST/DSC configuration happens in the same KMS commit as another (unrelated) mode change. For example, the integrated panel of a laptop may be configured diffe...

Affected product and versions

Product
Linux Linux, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.8 Telecommunications Update Service
Affected versions
>= 17ce8a6907f77b7ac97ddaa071d8a1f6e06ce85b < da1d0ed31e9802fd99384f43cc63678a5a11cb41, >= 17ce8a6907f77b7ac97ddaa071d8a1f6e06ce85b < 21159d8b335a6b9f44cbb506733013a902ae2da4, >= 17ce8a6907f77b7ac97ddaa071d8a1f6e06ce85b < 10862e344b4d6434642a48c87d765813fc0b0ba7, >= 17ce8a6907f77b7ac97ddaa071d8a1f6e06ce85b < 8a5edc97fd9c6415ff2eff872748439a97e3c3d8, >= 17ce8a6907f77b7ac97ddaa071d8a1f6e06ce85b < 111208b5b7ebcdadb3f922cc52d8425f0fa91b33, >= 17ce8a6907f77b7ac97ddaa071d8a1f6e06ce85b < aed3d041ab061ec8a64f50a3edda0f4db7280025, >= 5.18, >= 5.18.1 < 6.12.80, >= 6.13 < 6.18.21, >= 6.19 < 6.19.11, 5.18, 7.0
Fixed versions
6.12.80, 6.18.21, 6.19.11

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.8 Telecommunications Update Service and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-1288, CWE-416
CVE-2026-31488 — Linux Linux, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.8 Telecommunications Update Service | SECUFOCUS NOW