Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7915: avoid nss underflow in mt7915_mcu_get_sta_nss
If a peer's VHT/HE MCS map has no supported spatial stream (all fields 0x3), the loop exits with nss == 0 and the function returned (u8)-1 (255), which was then written into the firmware sta_rec_bf beamforming fields. Clamp the result to 0.
Metrics
CVSS 3.1 7.1/10
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:HAffected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 89029a85482cbcf68026a89fc974e8f6898d6b37, < 2801477c36a19be4f549fe60e54995f03b0ea7b9; >= 89029a85482cbcf68026a89fc974e8f6898d6b37, < 38f4d6323bcd65e41a691432eddabd2b03acdeee; >= 89029a85482cbcf68026a89fc974e8f6898d6b37, < 25f753f7f620955a8a51e63e445d8b9076c51396; >= 89029a85482cbcf68026a89fc974e8f6898d6b37, < e63c6291ecddf94769ab91f9d8cdb6ca939f7fc6; >= 89029a85482cbcf68026a89fc974e8f6898d6b37, < 85bd46ab7674b6d357f9a14791352c65fb09eee9; >= 89029a85482cbcf68026a89fc974e8f6898d6b37, < 6ce78d04c7ea4b66838941b5a4232dd1ee0e2cc7; >= 89029a85482cbcf68026a89fc974e8f6898d6b37, < ecfd1a07e78c31d81322fb2d81dc468081cc3004; >= 89029a85482cbcf68026a89fc974e8f6898d6b37, < 4a2f4be532e3ea4e2b536e411793a05aaa51af25 |
| Linux | Linux | 5.8 |
References
- https://git.kernel.org/stable/c/25f753f7f620955a8a51e63e445d8b9076c51396
- https://git.kernel.org/stable/c/2801477c36a19be4f549fe60e54995f03b0ea7b9
- https://git.kernel.org/stable/c/38f4d6323bcd65e41a691432eddabd2b03acdeee
- https://git.kernel.org/stable/c/4a2f4be532e3ea4e2b536e411793a05aaa51af25
- https://git.kernel.org/stable/c/6ce78d04c7ea4b66838941b5a4232dd1ee0e2cc7
- https://git.kernel.org/stable/c/85bd46ab7674b6d357f9a14791352c65fb09eee9
- https://git.kernel.org/stable/c/e63c6291ecddf94769ab91f9d8cdb6ca939f7fc6
- https://git.kernel.org/stable/c/ecfd1a07e78c31d81322fb2d81dc468081cc3004
Timeline
- Published
- Sep 17, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Received