CVE-2026-90372

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

VendorProductVersion RangeStatus
LinuxLinux89029a85482cbcf68026a89fc974e8f6898d6b37 < 2801477c36a19be4f549fe60e54995f03b0ea7b9affected
LinuxLinux89029a85482cbcf68026a89fc974e8f6898d6b37 < 38f4d6323bcd65e41a691432eddabd2b03acdeeeaffected
LinuxLinux89029a85482cbcf68026a89fc974e8f6898d6b37 < 25f753f7f620955a8a51e63e445d8b9076c51396affected
LinuxLinux89029a85482cbcf68026a89fc974e8f6898d6b37 < e63c6291ecddf94769ab91f9d8cdb6ca939f7fc6affected
LinuxLinux89029a85482cbcf68026a89fc974e8f6898d6b37 < 85bd46ab7674b6d357f9a14791352c65fb09eee9affected
LinuxLinux89029a85482cbcf68026a89fc974e8f6898d6b37 < 6ce78d04c7ea4b66838941b5a4232dd1ee0e2cc7affected
LinuxLinux89029a85482cbcf68026a89fc974e8f6898d6b37 < ecfd1a07e78c31d81322fb2d81dc468081cc3004affected
LinuxLinux89029a85482cbcf68026a89fc974e8f6898d6b37 < 4a2f4be532e3ea4e2b536e411793a05aaa51af25affected
LinuxLinux5.8affected
LinuxLinux0 < 5.8unaffected
LinuxLinux5.10.270 <= 5.10.*unaffected
LinuxLinux5.15.221 <= 5.15.*unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References