nvmem: zynqmp_nvmem: Fix buffer size in DMA and memcpy

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Summary

CVECVE-2026-31743
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-01 15:16:37 UTC
Updated2026-05-03 07:16:19 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: nvmem: zynqmp_nvmem: Fix buffer size in DMA and memcpy Buffer size used in dma allocation and memcpy is wrong. It can lead to undersized DMA buffer access and possible memory corruption. use correct buffer size in dma_alloc_coherent and memcpy.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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

EPSS: 0.000180000 probability, percentile 0.046600000 (date 2026-05-02)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 737c0c8d07b5f671c0a33cec95965fcb2d2ea893 2f6e5b9964d0a63a5ba84fca2642876afb70a662 git Not specified
CNA Linux Linux affected 737c0c8d07b5f671c0a33cec95965fcb2d2ea893 784ed4abded1ca4b525fa4cade8b02f8c5d2a087 git Not specified
CNA Linux Linux affected 737c0c8d07b5f671c0a33cec95965fcb2d2ea893 6c01e7f11f5e5f22285d19510a9643e2506e13c3 git Not specified
CNA Linux Linux affected 737c0c8d07b5f671c0a33cec95965fcb2d2ea893 f9b88613ff402aa6fe8fd020573cb95867ae947e git Not specified
CNA Linux Linux affected 6.9 Not specified
CNA Linux Linux unaffected 6.9 semver Not specified
CNA Linux Linux unaffected 6.12.81 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.22 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.12 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/f9b88613ff402aa6fe8fd020573cb95867ae947e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/784ed4abded1ca4b525fa4cade8b02f8c5d2a087 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6c01e7f11f5e5f22285d19510a9643e2506e13c3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2f6e5b9964d0a63a5ba84fca2642876afb70a662 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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