wifi: wcn36xx: fix OOB read from short trigger BA firmware response

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-80635
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-28 08:16:48 UTC
Updated2026-08-28 08:16:48 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: wcn36xx: fix OOB read from short trigger BA firmware response The firmware response length is only checked against sizeof(*rsp) (20 bytes), but when candidate_cnt >= 1, a 22-byte candidate struct is read at buf + 20 without verifying the response contains it. This causes an out-of-bounds read of stale heap data, corrupting the BA session state. Add validation that the response includes the candidate data.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 16be1ac55944412e8d132b1db26f994b368c5742 04aba50212f9f274e1a726fb3873b5ce8da2d821 git Not specified
CNA Linux Linux affected 16be1ac55944412e8d132b1db26f994b368c5742 c07aa0534d50361183833e3803204044cf1d0476 git Not specified
CNA Linux Linux affected 16be1ac55944412e8d132b1db26f994b368c5742 d0b57bcd0dac6e2c9a3e474ec280e7db0b3edf35 git Not specified
CNA Linux Linux affected 16be1ac55944412e8d132b1db26f994b368c5742 af8f0ea1f0a3a5fb5ed2b8fed3f1501d644597ee git Not specified
CNA Linux Linux affected 16be1ac55944412e8d132b1db26f994b368c5742 d0cafe6ed8d1f6d0097eda31d85f5760d4f359c2 git Not specified
CNA Linux Linux affected 16be1ac55944412e8d132b1db26f994b368c5742 b5e6f21923ca89d90256e7346301056f6502691e git Not specified
CNA Linux Linux affected 4.7 Not specified
CNA Linux Linux unaffected 4.7 semver Not specified
CNA Linux Linux unaffected 6.1.178 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.145 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.97 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/d0b57bcd0dac6e2c9a3e474ec280e7db0b3edf35 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/af8f0ea1f0a3a5fb5ed2b8fed3f1501d644597ee 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b5e6f21923ca89d90256e7346301056f6502691e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d0cafe6ed8d1f6d0097eda31d85f5760d4f359c2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/04aba50212f9f274e1a726fb3873b5ce8da2d821 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c07aa0534d50361183833e3803204044cf1d0476 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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