CVE-2026-90374
High
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().
SeverityHigh
CVSS7.1
Exploit probability—
Product
Microsoft Azl3 Kernel
PublishedSep 17, 2026
First seenSep 17, 2026
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft azl3_kernel_6.6.152.1-1 | No range specified | — |
| microsoft azl3_kernel_6.6.150.1-1 | No range specified | — |
| microsoft azl3_kernel_6.6.157.1-1 | No range specified | — |
| microsoft azl3_kernel_6.6.159.1-1 | No range specified | — |
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