CVE-2026-74323: wifi: mt76: mt7996: Fix possible token leak in mt7996_tx_prepare_skb()

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-15 · updated 2026-10-16

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: Fix possible token leak in mt7996_tx_prepare_skb() If link_conf or link_sta lookup fails in mt7996_tx_prepare_skb routine, mt7996 driver leaks an already allocated tx token. Fix the issue releasing the token in case of error.

Affected products

Linux kernel: 6.18 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/06e65d6cf80490bc0457d339595d1ed5a89e8899
https://git.kernel.org/stable/c/831074096d0450308357271fc0ffd3f600a2487e
https://git.kernel.org/stable/c/fa0e9aa92a7bc97fc42014c5efaaf1278fa92723

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