CVE-2023-53430: wifi: mt76: dma: fix memory leak running mt76_dma_tx_cleanup

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-09-18 · updated 2026-06-17
Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: dma: fix memory leak running mt76_dma_tx_cleanup Fix device unregister memory leak and alway cleanup all configured rx queues in mt76_dma_tx_cleanup routine.

Affected products

Linux kernel: from 6.2 before 6.2.3 — fixed in 6.2.3

How to fix

Upgrade to a fixed version: Linux kernel 6.2.3. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/3f7dda36e0b6dfa2cd26191f754ba061ab8191f2
https://git.kernel.org/stable/c/604990fee0a6d608a6cca179ae474f2a1c6add8a

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