CVE-2026-90372
wifi: mt76: mt7915: avoid nss underflow in mt7915_mcu_get_sta_nss
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
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Affected Versions
Linux / Linux
89029a85482cbcf68026a89fc974e8f6898d6b37 < 2801477c36a19be4f549fe60e54995f03b0ea7b9 89029a85482cbcf68026a89fc974e8f6898d6b37 < 38f4d6323bcd65e41a691432eddabd2b03acdeee 89029a85482cbcf68026a89fc974e8f6898d6b37 < 25f753f7f620955a8a51e63e445d8b9076c51396 89029a85482cbcf68026a89fc974e8f6898d6b37 < e63c6291ecddf94769ab91f9d8cdb6ca939f7fc6 89029a85482cbcf68026a89fc974e8f6898d6b37 < 85bd46ab7674b6d357f9a14791352c65fb09eee9 89029a85482cbcf68026a89fc974e8f6898d6b37 < 6ce78d04c7ea4b66838941b5a4232dd1ee0e2cc7 89029a85482cbcf68026a89fc974e8f6898d6b37 < ecfd1a07e78c31d81322fb2d81dc468081cc3004 89029a85482cbcf68026a89fc974e8f6898d6b37 < 4a2f4be532e3ea4e2b536e411793a05aaa51af25
Linux / Linux
5.8
References
git.kernel.org: https://git.kernel.org/stable/c/2801477c36a19be4f549fe60e54995f03b0ea7b9 git.kernel.org: https://git.kernel.org/stable/c/38f4d6323bcd65e41a691432eddabd2b03acdeee git.kernel.org: https://git.kernel.org/stable/c/25f753f7f620955a8a51e63e445d8b9076c51396 git.kernel.org: https://git.kernel.org/stable/c/e63c6291ecddf94769ab91f9d8cdb6ca939f7fc6 git.kernel.org: https://git.kernel.org/stable/c/85bd46ab7674b6d357f9a14791352c65fb09eee9 git.kernel.org: https://git.kernel.org/stable/c/6ce78d04c7ea4b66838941b5a4232dd1ee0e2cc7 git.kernel.org: https://git.kernel.org/stable/c/ecfd1a07e78c31d81322fb2d81dc468081cc3004 git.kernel.org: https://git.kernel.org/stable/c/4a2f4be532e3ea4e2b536e411793a05aaa51af25