drm/client: Do not destroy NULL modes

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Summary

CVECVE-2026-23366
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-25 11:16:35 UTC
Updated2026-04-24 18:41:12 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/client: Do not destroy NULL modes 'modes' in drm_client_modeset_probe may fail to kcalloc. If this occurs, we jump to 'out', calling modes_destroy on it, which dereferences it. This may result in a NULL pointer dereference in the error case. Prevent that.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-476

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 3039cc0c0653c6e15130a8719c3237329a954670 4e3ca5f82346cc23c0a71f1ceb006115ff6b0745 git Not specified
CNA Linux Linux affected 3039cc0c0653c6e15130a8719c3237329a954670 9aa3e33f0c7f2679ac599a09e3102c8f716a6321 git Not specified
CNA Linux Linux affected 3039cc0c0653c6e15130a8719c3237329a954670 c601fd5414315fc515f746b499110e46272e7243 git Not specified
CNA Linux Linux affected 6.16 Not specified
CNA Linux Linux unaffected 6.16 semver Not specified
CNA Linux Linux unaffected 6.18.17 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.7 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/9aa3e33f0c7f2679ac599a09e3102c8f716a6321 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/4e3ca5f82346cc23c0a71f1ceb006115ff6b0745 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c601fd5414315fc515f746b499110e46272e7243 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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