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… (CVE-2026-64155)
A vulnerability in the Linux kernel's ath11k WiFi driver involved error path leaks in some WMI Wake on Wireless (WOW) calls. The issue was due to failure to check return values and free memory buffers (skb) properly in error paths. This has been resolved by fixing two instances where the code directly returned results without proper cleanup.
AI Analysis
Technical Summary
The Linux kernel ath11k WiFi driver contained a vulnerability (CVE-2026-64155) related to error path handling in WMI WOW calls. Specifically, the code did not check the return value of ath11k_wmi_cmd_send(...) and failed to free the socket buffer (skb) in error scenarios, causing resource leaks. The fix addresses these two instances by ensuring proper error handling and resource cleanup.
Potential Impact
The vulnerability causes resource leaks in the kernel's WiFi driver error paths. While this may lead to increased memory usage or instability, no direct exploitation or broader impact is documented in the provided data.
Mitigation Recommendations
A fix for this vulnerability has been implemented in the Linux kernel. Users should update to the fixed kernel version once available. Patch status is not explicitly confirmed in the provided data; check the official Linux kernel advisories or vendor updates for the specific fixed versions and apply them accordingly.
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… (CVE-2026-64155)
Description
A vulnerability in the Linux kernel's ath11k WiFi driver involved error path leaks in some WMI Wake on Wireless (WOW) calls. The issue was due to failure to check return values and free memory buffers (skb) properly in error paths. This has been resolved by fixing two instances where the code directly returned results without proper cleanup.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel ath11k WiFi driver contained a vulnerability (CVE-2026-64155) related to error path handling in WMI WOW calls. Specifically, the code did not check the return value of ath11k_wmi_cmd_send(...) and failed to free the socket buffer (skb) in error scenarios, causing resource leaks. The fix addresses these two instances by ensuring proper error handling and resource cleanup.
Potential Impact
The vulnerability causes resource leaks in the kernel's WiFi driver error paths. While this may lead to increased memory usage or instability, no direct exploitation or broader impact is documented in the provided data.
Mitigation Recommendations
A fix for this vulnerability has been implemented in the Linux kernel. Users should update to the fixed kernel version once available. Patch status is not explicitly confirmed in the provided data; check the official Linux kernel advisories or vendor updates for the specific fixed versions and apply them accordingly.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-fhf8-xvr6-7xg9
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64155"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a5d27a82a4a8d598912a545
Added to database: 07/19/2026, 19:38:16 UTC
Last enriched: 07/19/2026, 19:41:08 UTC
Last updated: 07/20/2026, 17:26:47 UTC
Views: 12
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