CVE-2026-90374
Published: September 19, 2026Last modified: September 28, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: validate RX band_idx before dereferencing phys[] band_idx comes from a 2-bit descriptor field (0-3) and was used directly to index dev->mt76.phys[] (size __MT_MAX_BAND == 3) and dereference the result. A corrupt or reserved descriptor value could index out of bounds or hit a NULL phy on parts with fewer bands. Reject invalid band indices, mirroring mt7996_rx_get_wcid().
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Not affected (6.1.33-r0) |
| 25 LTS | linux-lts | Fixed (6.12.111-r0) | |
| Stream | linux-lts | Fixed (6.18.53-r0) |
References
- https://git.kernel.org/stable/c/0f53ece876e1f3bbb3e18f48afc4af1ee967b16c
- https://git.kernel.org/stable/c/2243778a5fae8329ab5f18e7adcd7e03b911a1b7
- https://git.kernel.org/stable/c/493a029c205a994644327d554f0cfeb9651aba7c
- https://git.kernel.org/stable/c/535091c587268cc783608642838a655d828eefdd
- https://git.kernel.org/stable/c/b1c5cf8903bec5476a2233b4e45287b9a2213e02