Bluetooth: btintel: validate DDC record lengths

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-98819
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-18 16:17:36 UTC
Updated2026-10-21 13:21:47 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel: validate DDC record lengths Parse DDC record lengths in unsigned storage so 0xFF does not wrap. Reject records smaller than the mandatory three-byte header, records exceeding U8_MAX, and records exceeding remaining firmware bytes before issuing Intel_Write_DDC. This issue was reported by Claude Mythos.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 145f2368c5fd7962e37315ccc092670743019d08 7df748aa9f9ecab514e5989ed89c9ba35b6e5574 git Not specified
CNA Linux Linux affected 145f2368c5fd7962e37315ccc092670743019d08 069031f569f1681f17e863f48c221a6091b47850 git Not specified
CNA Linux Linux affected 145f2368c5fd7962e37315ccc092670743019d08 b0fce76873a5e6a6820354409b26693ac5f8b251 git Not specified
CNA Linux Linux affected 145f2368c5fd7962e37315ccc092670743019d08 f3617369fbb30a4d2e54841ab8e92ca4fa211e56 git Not specified
CNA Linux Linux affected 145f2368c5fd7962e37315ccc092670743019d08 c9c15d4d8956df8c564f7c210e4dc5b9b820d97a git Not specified
CNA Linux Linux affected 4.4 Not specified
CNA Linux Linux unaffected 4.4 semver Not specified
CNA Linux Linux unaffected 6.6.160 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.113 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.56 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.10 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/c9c15d4d8956df8c564f7c210e4dc5b9b820d97a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f3617369fbb30a4d2e54841ab8e92ca4fa211e56 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/069031f569f1681f17e863f48c221a6091b47850 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7df748aa9f9ecab514e5989ed89c9ba35b6e5574 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b0fce76873a5e6a6820354409b26693ac5f8b251 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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