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CVE-2026-90374

Unknown

Last modified

CVE-2026-90374 is a vulnerability of currently unknown severity. 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.

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().

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 98686cd21624c75a043e96812beadddf4f6f48e5, < 535091c587268cc783608642838a655d828eefdd; >= 98686cd21624c75a043e96812beadddf4f6f48e5, < 0f53ece876e1f3bbb3e18f48afc4af1ee967b16c; >= 98686cd21624c75a043e96812beadddf4f6f48e5, < b1c5cf8903bec5476a2233b4e45287b9a2213e02; >= 98686cd21624c75a043e96812beadddf4f6f48e5, < 2243778a5fae8329ab5f18e7adcd7e03b911a1b7
LinuxLinux6.2

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-90374?
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().
How severe is CVE-2026-90374?
Severity scoring for CVE-2026-90374 is pending analysis.
How do I fix CVE-2026-90374?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST