fbdev: vt8500lcdfb: fix missing dma_free_coherent()

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Summary

CVECVE-2026-43202
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-06 12:16:39 UTC
Updated2026-05-11 20:10:35 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: fbdev: vt8500lcdfb: fix missing dma_free_coherent() fbi->fb.screen_buffer is allocated with dma_alloc_coherent() but is not freed if the error path is reached.

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: NVD-CWE-noinfo

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 e7b995371fe1e29838321fcdc3cfe35bb0d6bfc4 9a9bc60ed372aaae9784ff8ad8e5f496ff15fd31 git Not specified
CNA Linux Linux affected e7b995371fe1e29838321fcdc3cfe35bb0d6bfc4 9c3873cccb3fab54cde0605ae7093d332c99073e git Not specified
CNA Linux Linux affected e7b995371fe1e29838321fcdc3cfe35bb0d6bfc4 778f31be5b8c10024db23fdd8a05f68a02311008 git Not specified
CNA Linux Linux affected e7b995371fe1e29838321fcdc3cfe35bb0d6bfc4 e8c5d5f6cd66e032f9aefdcc21b0c34761aef78a git Not specified
CNA Linux Linux affected e7b995371fe1e29838321fcdc3cfe35bb0d6bfc4 f47d5b9e8aa6178a0aaf225119ad1ec7d3f49876 git Not specified
CNA Linux Linux affected e7b995371fe1e29838321fcdc3cfe35bb0d6bfc4 40c1ff25025150ff6d7ec7ad441fcfd6d070ee76 git Not specified
CNA Linux Linux affected e7b995371fe1e29838321fcdc3cfe35bb0d6bfc4 2cd2f988a8bd2da227f5c3cfa0cbf3a9a287ddc3 git Not specified
CNA Linux Linux affected e7b995371fe1e29838321fcdc3cfe35bb0d6bfc4 88b3b9924337336a31cefbe99a22ed09401be74a git Not specified
CNA Linux Linux affected 3.7 Not specified
CNA Linux Linux unaffected 3.7 semver Not specified
CNA Linux Linux unaffected 5.10.252 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.202 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.165 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.128 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.75 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.16 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.6 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/9a9bc60ed372aaae9784ff8ad8e5f496ff15fd31 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/40c1ff25025150ff6d7ec7ad441fcfd6d070ee76 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/88b3b9924337336a31cefbe99a22ed09401be74a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/f47d5b9e8aa6178a0aaf225119ad1ec7d3f49876 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/2cd2f988a8bd2da227f5c3cfa0cbf3a9a287ddc3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/e8c5d5f6cd66e032f9aefdcc21b0c34761aef78a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/9c3873cccb3fab54cde0605ae7093d332c99073e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/778f31be5b8c10024db23fdd8a05f68a02311008 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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