CVE-2026-90372
7.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 89029a85482cbcf68026a89fc974e8f6898d6b37 < 2801477c36a19be4f549fe60e54995f03b0ea7b9 | affected |
| Linux | Linux | 89029a85482cbcf68026a89fc974e8f6898d6b37 < 38f4d6323bcd65e41a691432eddabd2b03acdeee | affected |
| Linux | Linux | 89029a85482cbcf68026a89fc974e8f6898d6b37 < 25f753f7f620955a8a51e63e445d8b9076c51396 | affected |
| Linux | Linux | 89029a85482cbcf68026a89fc974e8f6898d6b37 < e63c6291ecddf94769ab91f9d8cdb6ca939f7fc6 | affected |
| Linux | Linux | 89029a85482cbcf68026a89fc974e8f6898d6b37 < 85bd46ab7674b6d357f9a14791352c65fb09eee9 | affected |
| Linux | Linux | 89029a85482cbcf68026a89fc974e8f6898d6b37 < 6ce78d04c7ea4b66838941b5a4232dd1ee0e2cc7 | affected |
| Linux | Linux | 89029a85482cbcf68026a89fc974e8f6898d6b37 < ecfd1a07e78c31d81322fb2d81dc468081cc3004 | affected |
| Linux | Linux | 89029a85482cbcf68026a89fc974e8f6898d6b37 < 4a2f4be532e3ea4e2b536e411793a05aaa51af25 | affected |
| Linux | Linux | 5.8 | affected |
| Linux | Linux | 0 < 5.8 | unaffected |
| Linux | Linux | 5.10.270 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.221 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.188 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.157 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.110 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.52 <= 6.18.* | unaffected |
| Linux | Linux | 7.2.6 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/2801477c36a19be4f549fe60e54995f03b0ea7b9
- https://git.kernel.org/stable/c/38f4d6323bcd65e41a691432eddabd2b03acdeee
- https://git.kernel.org/stable/c/25f753f7f620955a8a51e63e445d8b9076c51396
- https://git.kernel.org/stable/c/e63c6291ecddf94769ab91f9d8cdb6ca939f7fc6
- https://git.kernel.org/stable/c/85bd46ab7674b6d357f9a14791352c65fb09eee9
- https://git.kernel.org/stable/c/6ce78d04c7ea4b66838941b5a4232dd1ee0e2cc7
- https://git.kernel.org/stable/c/ecfd1a07e78c31d81322fb2d81dc468081cc3004
- https://git.kernel.org/stable/c/4a2f4be532e3ea4e2b536e411793a05aaa51af25
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