What’s Vulnerable › Vulnerabilities

CVE-2026-64155: wifi: ath11k: fix error path leaks in some WMI WOW calls

• 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: 2026-07-19 · updated 2026-08-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix error path leaks in some WMI WOW calls Fix two instances where we used to directly return the result of ath11k_wmi_cmd_send(...). Because we did not check the return value, we also did not free the skb in the error path.

Affected products

• Linux kernel: from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.142; from 6.7 before 6.12.92; from 6.13 before 6.18.34; from 6.19 before 7.0.11 — fixed in 5.15.209, 6.1.175, 6.12.92, 6.18.34, 6.6.142, 7.0.11

How to fix

Upgrade to a fixed version: Linux kernel 5.15.209, 6.1.175, 6.12.92, 6.18.34. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/008955b1348452de25bc19d6e0f0f673d4cb9a3c
• https://git.kernel.org/stable/c/3d675896ea03aca631852a2a7e91e6cb8f664967
• https://git.kernel.org/stable/c/55dda532bbc261aef495e403c8900c5e2ab5fa34
• https://git.kernel.org/stable/c/acde4692afcdaea6de3e2996ddfaeaa7ae6b0130
• https://git.kernel.org/stable/c/cd43d587dd333517c806cd24696e6e1a26b9951e
• https://git.kernel.org/stable/c/d618d322b95c80d5ad7091f35a7193e4050dcc27
• https://git.kernel.org/stable/c/d6c7b8d0dc22c0a8743435db8f42d98524b70df3

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