CVE-2026-46122
wifi: b43: enforce bounds check on firmware key index in b43_rx()
Vexday Risk Score
3Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS —EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
28 May 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
In the Linux kernel, the following vulnerability has been resolved:
wifi: b43: enforce bounds check on firmware key index in b43_rx()
The firmware-controlled key index in b43_rx() can exceed the dev->key[]
array size (58 entries). The existing B43_WARN_ON is non-enforcing in
production builds, allowing an out-of-bounds read.
Make the B43_WARN_ON check enforcing by dropping the frame when the
firmware returns an invalid key index.
Affected products
Linux · LinuxWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →References
https://git.kernel.org/stable/c/135cb49c9a42a02cceeac7b49ec03e267f7ed6d6https://git.kernel.org/stable/c/1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14https://git.kernel.org/stable/c/1f4f78bf8549e6ac4f04fba4176854f3a6e0c332https://git.kernel.org/stable/c/219ba67e69e49681e48c822d6eaafb5def032f34https://git.kernel.org/stable/c/3157ad40b084a8f3932da2641749ab45e99b933ehttps://git.kernel.org/stable/c/765709720e6af9a178abc40244a8d1aa39ac4e71https://git.kernel.org/stable/c/c3d7b90dc95020cd9282c4630e402fe224f7644ehttps://git.kernel.org/stable/c/d7029879bafdac2006c67553807d122283dc6cbf