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CVE-2026-98195: wifi: iwlegacy: fix broadcast stations deallocation

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-06 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlegacy: fix broadcast stations deallocation On the error path of __il4965_up(), il_dealloc_bcast_stations() clears only IL_STA_UCODE_ACTIVE, leaving IL_STA_BCAST set. This causes the same broadcast stations to be deallocated again by __il4965_down(). This can occur when RF_KILL is toggled during driver startup. To fix clear the entire 'used' field, since we will not do any other operations on the station.

Affected products

• Linux kernel: 4.7 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1d84c2a3de449aceb94ed79eaefecdf1bedb6468
• https://git.kernel.org/stable/c/275d474a4b4bd4e73b18b1452f12e78806a8843a
• https://git.kernel.org/stable/c/526fdd45548e22eee50ee1062abd88269d9f32e0
• https://git.kernel.org/stable/c/55d34422c0d91436983028fd3c1546a1c2bee55f
• https://git.kernel.org/stable/c/85d847ff71fe736cbc15ada321256818e630e205
• https://git.kernel.org/stable/c/a9176fe666af1730cab92350f9c8cf67ebf14439
• https://git.kernel.org/stable/c/b5526b780f8b297a76030410b96ba29153afb98f
• https://git.kernel.org/stable/c/c9a116d691364cd7f59d8329b395adcaf826d5c6

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