PT-2026-44286 · Linux · Linux

Published 2026-05-28 · Updated 2026-05-28 · CVE-2026-46163

Mitre

In the Linux kernel, the following vulnerability has been resolved:

wifi: b43legacy: enforce bounds check on firmware key index in RX path

Same fix as b43: the firmware-controlled key index in b43legacy rx() can exceed dev->max nr keys. The existing B43legacy WARN ON is non-enforcing in production builds, allowing an out-of-bounds read of dev->key[].

Make the check enforcing by dropping the frame for invalid indices.

Related Identifiers

CVE-2026-46163

Affected Products

Linux

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-46163 · Security Note
• https://git.kernel.org/stable/c/6ee946077607d7783ae6709a899213fc4fe08f35 · Note
• https://git.kernel.org/stable/c/fdd4e51979f42ca8b1ab7e6176b607e1caabf2a5 · Note
• https://git.kernel.org/stable/c/a035766f970bde2d4298346a31a80685be5c0205 · Note
• https://git.kernel.org/stable/c/1baaeb6adecb9691748c0253dab6ddd19a2b4e9e · Note
• https://git.kernel.org/stable/c/9d1bc155802943e92c57a5fb923d23edfbf0b525 · Note