CVE-2026-64506 is a vulnerability in Linux Kernel
Published on July 25, 2026
wifi: rtw89: correct drop logic for malformed AMPDU frames
In 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.
Products Associated with CVE-2026-64506
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Affected Versions
Linux:- Version bda294ed0ed05ada2a832b19a55dd4a6fa72b1a1 and below 994994cfadaf1fd362dea9b8d9d633f85dc1b3c3 is affected.
- Version bda294ed0ed05ada2a832b19a55dd4a6fa72b1a1 and below 63ccdfac8677387dfdbd9d4336089e9823280704 is affected.
- Version 7.1 is affected.
- Before 7.1 is unaffected.
- Version 7.1.4, <= 7.1.* is unaffected.
- Version 7.2-rc1, <= * is unaffected.