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VulnerabilityPublished Updated

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

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in d618d322b95c80d5ad7091f35a7193e4050dcc27 : update Linux kernel when convenient.

Data as of 6 Nov 2026, 17:03 UTC

Severity
Low

Rated Low by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch
Available – fixed in d618d322b95c80d5ad7091f35a7193e4050dcc27, d6c7b8d0dc22c0a8743435db8f42d98524b70df3, cd43d587dd333517c806cd24696e6e1a26b9951e +4

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 79802b13a492d0fdeb922e98628e5ff1a8b74026, < d618d322b95c80d5ad7091f35a7193e4050dcc27
Fixed in
  • d618d322b95c80d5ad7091f35a7193e4050dcc27
LinuxLinuxAffected
  • ≥ 79802b13a492d0fdeb922e98628e5ff1a8b74026, < d6c7b8d0dc22c0a8743435db8f42d98524b70df3
Fixed in
  • d6c7b8d0dc22c0a8743435db8f42d98524b70df3
LinuxLinuxAffected
  • ≥ 79802b13a492d0fdeb922e98628e5ff1a8b74026, < cd43d587dd333517c806cd24696e6e1a26b9951e
Fixed in
  • cd43d587dd333517c806cd24696e6e1a26b9951e
LinuxLinuxAffected
  • ≥ 79802b13a492d0fdeb922e98628e5ff1a8b74026, < acde4692afcdaea6de3e2996ddfaeaa7ae6b0130
Fixed in
  • acde4692afcdaea6de3e2996ddfaeaa7ae6b0130
LinuxLinuxAffected
  • ≥ 79802b13a492d0fdeb922e98628e5ff1a8b74026, < 008955b1348452de25bc19d6e0f0f673d4cb9a3c
Fixed in
  • 008955b1348452de25bc19d6e0f0f673d4cb9a3c
LinuxLinuxAffected
  • ≥ 79802b13a492d0fdeb922e98628e5ff1a8b74026, < 55dda532bbc261aef495e403c8900c5e2ab5fa34
Fixed in
  • 55dda532bbc261aef495e403c8900c5e2ab5fa34

AI-suggested

A fix is available and has been applied in several commits following version 5.11 of the Linux kernel. Users and administrators should update to a Linux kernel version that includes these fixes to remediate the issue.

Description

A vulnerability in the Linux kernel's ath11k WiFi driver was fixed to address error path leaks in some WMI Wake on Wireless (WOW) calls. The issue involved failure to check return values and free memory buffers (skb) properly in error paths, potentially leading to resource leaks. The flaw affects Linux kernel version 5.11 and has been resolved in subsequent commits.

References

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