What’s Vulnerable › Vulnerabilities

CVE-2023-53639: wifi: ath6kl: reduce WARN to dev_dbg() in callback

• 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: 2025-10-07 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath6kl: reduce WARN to dev_dbg() in callback The warn is triggered on a known race condition, documented in the code above the test, that is correctly handled. Using WARN() hinders automated testing. Reducing severity.

Affected products

• Linux kernel: from 3.9 before 4.14.315; from 4.15 before 4.19.283; from 4.20 before 5.4.243; from 5.5 before 5.10.180; from 5.11 before 5.15.111; from 5.16 before 6.1.28 — fixed in 4.14.315, 4.19.283, 5.10.180, 5.15.111, 5.4.243, 6.1.28

How to fix

Upgrade to a fixed version: Linux kernel 4.14.315, 4.19.283, 5.10.180, 5.15.111. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0d1792c98351b7c8ebdc53d052918e77d1e512c3
• https://git.kernel.org/stable/c/1300517e371e4d0acdb0f1237477e1ed223c3a9a
• https://git.kernel.org/stable/c/484d95c69fc1143f09e4c2e3b89019d68d190a92
• https://git.kernel.org/stable/c/644df7e865e76ab7a62c67c25cbbc093c944d0ef
• https://git.kernel.org/stable/c/6f93154d61b345acbc405c6dee16afb845eb298e
• https://git.kernel.org/stable/c/75c4a8154cb6c7239fb55d5550f481f6765fb83c
• https://git.kernel.org/stable/c/cbec770521ebc455c9811a23222faf8911422d4a
• https://git.kernel.org/stable/c/e7865f84adaf75cee1a4bbf79680329eca92b4e1
• https://git.kernel.org/stable/c/f2a429e6da37e32438a9adc250cc176a889c16a4

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