Bluetooth: btintel: Validate length before parsing diagnostics TLV

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74532
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 13:17:58 UTC
Updated2026-08-17 06:19:50 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel: Validate length before parsing diagnostics TLV btintel_diagnostics() accesses tlv->val[0] without first validating that the diagnostics VSE is long enough to contain that field, so may cause reading data beyond the received frame. Fix by validating the length before access.

Risk And Classification

EPSS: 0.001680000 probability, percentile 0.064890000 (date 2026-08-16)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected af395330abed142a2685bf3d17a938544816bf3c c31be902ccbbb0b2c23159a1481dce80d1f9753d git Not specified
CNA Linux Linux affected af395330abed142a2685bf3d17a938544816bf3c dd20e30bdbd707ea8ced581f3d7f9e9854634b17 git Not specified
CNA Linux Linux affected af395330abed142a2685bf3d17a938544816bf3c c618a9a5b08ea2e17bddf4e948be9f75d408fca4 git Not specified
CNA Linux Linux affected af395330abed142a2685bf3d17a938544816bf3c 6ec9c3dc52302b891513f608f5fb478349b15ab3 git Not specified
CNA Linux Linux affected af395330abed142a2685bf3d17a938544816bf3c b640ff9af3c809ff5ea2077fbba17df1594ec1e4 git Not specified
CNA Linux Linux affected 6.4 Not specified
CNA Linux Linux unaffected 6.4 semver Not specified
CNA Linux Linux unaffected 6.6.151 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.103 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.44 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.8 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/c31be902ccbbb0b2c23159a1481dce80d1f9753d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c618a9a5b08ea2e17bddf4e948be9f75d408fca4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/dd20e30bdbd707ea8ced581f3d7f9e9854634b17 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b640ff9af3c809ff5ea2077fbba17df1594ec1e4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6ec9c3dc52302b891513f608f5fb478349b15ab3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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