High · published May 28, 2026
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.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 2.6.24, < 5.10.258 | 5.10.258 |
| linux/linux_kernel | ≥ 5.11, < 5.15.209 | 5.15.209 |
| linux/linux_kernel | ≥ 5.16, < 6.1.175 | 6.1.175 |
| linux/linux_kernel | ≥ 6.2, < 6.6.140 | 6.6.140 |
| linux/linux_kernel | ≥ 6.7, < 6.12.88 | 6.12.88 |
| linux/linux_kernel | ≥ 6.13, < 6.18.30 | 6.18.30 |
| linux/linux_kernel | ≥ 6.19, < 7.0.7 | 7.0.7 |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |