What’s Vulnerable › Vulnerabilities

CVE-2023-53574: wifi: rtw88: delete timer and free skb queue when unloading

• 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: 2025-10-04 · updated 2026-10-03
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: delete timer and free skb queue when unloading Fix possible crash and memory leak on driver unload by deleting TX purge timer and freeing C2H queue in 'rtw_core_deinit()', shrink critical section in the latter by freeing COEX queue out of TX report lock scope.

Affected products

• Linux kernel: from 5.2 before 6.5.5 — fixed in 6.5.5

How to fix

Upgrade to a fixed version: Linux kernel 6.5.5. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/4128b00a6006870e117ab1841e58f369e9284ecb
• https://git.kernel.org/stable/c/60ee0f6fea7ba5681ebf7d70b8ebe592227188a4
• https://git.kernel.org/stable/c/634fcbcaa4062db39aeb5ac6ed1bc1feb8dd5216

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