CVE-2026-64506 PUBLISHED

wifi: rtw89: correct drop logic for malformed AMPDU frames

Assigner: Linux
Reserved: 19.07.2026 Published: 25.07.2026 Updated: 25.07.2026

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.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from bda294ed0ed05ada2a832b19a55dd4a6fa72b1a1 to 994994cfadaf1fd362dea9b8d9d633f85dc1b3c3 (excl.)
  • affected from bda294ed0ed05ada2a832b19a55dd4a6fa72b1a1 to 63ccdfac8677387dfdbd9d4336089e9823280704 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 7.1 is affected
  • unaffected from 0 to 7.1 (excl.)
  • unaffected from 7.1.4 to 7.1.* (incl.)
  • unaffected from 7.2-rc1 to * (incl.)

References