wifi: rtw89: correct drop logic for malformed AMPDU frames

Summary

CVECVE-2026-64506
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-25 10:17:36 UTC
Updated2026-07-25 10:17:36 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: correct drop logic for malformed AMPDU frames The previous commit aims to fix issue caused by malformed AMPDU frames. But the drop logic fails to deal with the first AMPDU packet paired with certain range of sequence number, and leads to unexpected packet drop. It is more likely to encounter this failure when there are busy traffic during rekey process and could lead to disconnection from the AP. Fix this by adding a initial state judgement and only reset status during pairwise rekey.

Risk And Classification

EPSS: 0.001610000 probability, percentile 0.057570000 (date 2026-07-29)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected bda294ed0ed05ada2a832b19a55dd4a6fa72b1a1 994994cfadaf1fd362dea9b8d9d633f85dc1b3c3 git Not specified
CNA Linux Linux affected bda294ed0ed05ada2a832b19a55dd4a6fa72b1a1 63ccdfac8677387dfdbd9d4336089e9823280704 git Not specified
CNA Linux Linux affected 7.1 Not specified
CNA Linux Linux unaffected 7.1 semver Not specified
CNA Linux Linux unaffected 7.1.4 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/63ccdfac8677387dfdbd9d4336089e9823280704 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/994994cfadaf1fd362dea9b8d9d633f85dc1b3c3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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