wifi: brcmsmac: Fix dma_free_coherent() size

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Summary

CVECVE-2026-31661
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-24 15:16:45 UTC
Updated2026-04-27 20:17:46 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: brcmsmac: Fix dma_free_coherent() size dma_alloc_consistent() may change the size to align it. The new size is saved in alloced. Change the free size to match the allocation size.

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

EPSS: 0.000240000 probability, percentile 0.067850000 (date 2026-04-27)

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 5b435de0d786869c95d1962121af0d7df2542009 f449676bab54fea1440775c8c915dadb323fe015 git Not specified
CNA Linux Linux affected 5b435de0d786869c95d1962121af0d7df2542009 3c204a0fd079fa7a867151a47d830ad1c2db5177 git Not specified
CNA Linux Linux affected 5b435de0d786869c95d1962121af0d7df2542009 0f87777b74bcce29b966ec42d9aa8f9edd9b1667 git Not specified
CNA Linux Linux affected 5b435de0d786869c95d1962121af0d7df2542009 4bf41c2731a0549e21f66180ff780b1e036639ab git Not specified
CNA Linux Linux affected 5b435de0d786869c95d1962121af0d7df2542009 77263f053963dea9f3962505ac0c768853d7dc59 git Not specified
CNA Linux Linux affected 5b435de0d786869c95d1962121af0d7df2542009 b27fa888e4a426a3bcf6f6ab24701d888d9bf5aa git Not specified
CNA Linux Linux affected 5b435de0d786869c95d1962121af0d7df2542009 01f1330d3d1bee07e0c42d40cc48b7be8b6dad84 git Not specified
CNA Linux Linux affected 5b435de0d786869c95d1962121af0d7df2542009 12cd7632757a54ce586e36040210b1a738a0fc53 git Not specified
CNA Linux Linux affected 3.2 Not specified
CNA Linux Linux unaffected 3.2 semver Not specified
CNA Linux Linux unaffected 5.10.253 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.203 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.169 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.135 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.82 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.23 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.13 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/01f1330d3d1bee07e0c42d40cc48b7be8b6dad84 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/4bf41c2731a0549e21f66180ff780b1e036639ab 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/f449676bab54fea1440775c8c915dadb323fe015 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b27fa888e4a426a3bcf6f6ab24701d888d9bf5aa 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/12cd7632757a54ce586e36040210b1a738a0fc53 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/0f87777b74bcce29b966ec42d9aa8f9edd9b1667 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/3c204a0fd079fa7a867151a47d830ad1c2db5177 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/77263f053963dea9f3962505ac0c768853d7dc59 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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