accel/amdxdna: Fix out-of-bounds memset in command slot handling

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Summary

CVECVE-2026-23288
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-25 11:16:23 UTC
Updated2026-05-29 15:29:32 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix out-of-bounds memset in command slot handling The remaining space in a command slot may be smaller than the size of the command header. Clearing the command header with memset() before verifying the available slot space can result in an out-of-bounds write and memory corruption. Fix this by moving the memset() call after the size validation.

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: 0.000170000 probability, percentile 0.041180000 (date 2026-04-07)

Problem Types: CWE-125

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All
Operating System Linux Linux Kernel 7.0 rc1 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 13ae1a6000f7d8b09478e3128e87d45e89c7282f cca770d710d5e03bc814af585cd6975eb6d74074 git Not specified
CNA Linux Linux affected 3d32eb7a5ecff92d83a5fd34c45c171c17d3d5d0 1110a949675ebd56b3f0286e664ea543f745801c git Not specified
CNA Linux Linux affected 6.19.4 6.19.7 semver Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/cca770d710d5e03bc814af585cd6975eb6d74074 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/1110a949675ebd56b3f0286e664ea543f745801c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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