https://seclists.org/oss-sec/2026/q3/544: OVSwrap (CVE-2026-64531): Linux kernel/OVS local root vulnerability

Q: What was the Ubuntu fix status at the time of the discussion?

The CVE was tracked as active, but no Ubuntu release containing the fix was available at that time. The patches were reported as being in the process of landing.

Q: Why might an Ubuntu update take longer to become available?

Ubuntu must patch and test a large number of kernel variations across its supported releases. The discussion notes that this testing process can take more than a few days after public disclosure.

Published Aug 21, 2026

Updated

Affected Software

7 affected components

Linux Linux kernel>=5.15.211<5.15.212

Linux Linux kernel>=6.1.177<6.1.178

Linux Linux kernel>=6.6.144<6.6.145

Linux Linux kernel>=6.12.96<6.12.97

Linux Linux kernel>=6.18.39<6.18.40

Linux Linux kernel>=7.1.4<7.1.5

openvswitch=

Frequently Asked Questions

What was the Ubuntu fix status at the time of the discussion?

The CVE was tracked as active, but no Ubuntu release containing the fix was available at that time. The patches were reported as being in the process of landing.

Why might an Ubuntu update take longer to become available?

Ubuntu must patch and test a large number of kernel variations across its supported releases. The discussion notes that this testing process can take more than a few days after public disclosure.

https://seclists.org/oss-sec/2026/q3/544: OVSwrap (CVE-2026-64531): Linux kernel/OVS local root vulnerability

Affected Software

Frequently Asked Questions

What was the Ubuntu fix status at the time of the discussion?

Why might an Ubuntu update take longer to become available?

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