CVE-2026-90374
kernel: wifi: mt76: mt7996: validate RX band_idx before dereferencing phys[]
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 20, 2026
Description
A flaw was found in the Linux kernel's mt76 wifi driver. This vulnerability occurs due to improper validation of the band_idx field, which is used to index an array. A malicious actor could provide a corrupt or reserved descriptor value, leading to an out-of-bounds access or a NULL pointer dereference. This could result in system instability or a denial of service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-787 · Out-of-bounds Write