CVE-2022-49484: mt76: mt7915: fix possible NULL pointer dereference in mt7915_mac_fill_rx_vector

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-02-26 · updated 2026-06-17
Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: mt76: mt7915: fix possible NULL pointer dereference in mt7915_mac_fill_rx_vector Fix possible NULL pointer dereference in mt7915_mac_fill_rx_vector routine if the chip does not support dbdc and the hw reports band_idx set to 1.

Affected products

Linux kernel: from 5.12 before 5.18.3 — fixed in 5.18.3

How to fix

Upgrade to a fixed version: Linux kernel 5.18.3. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/268e8ef187eb8780d021b0e4f5ffa92dee5c4983
https://git.kernel.org/stable/c/62fdc974894eec80d678523458cf99bbdb887e22

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