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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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OVSwrap (CVE-2026-64531): How a 13-Year-Old Open vSwitch Bug Became a Reliable Linux Root Exploit (wp.me)

submitted 3 days ago by UnLocoPoco@lemmy.world to c/linux@lemmy.ml

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CVE-2026-64531 (OVSwrap) is a recently disclosed Linux kernel privilege escalation vulnerability affecting the Open vSwitch datapath. The flaw is particularly notable because the vulnerable code had existed for roughly 13 years but remained practically unreachable until a 2025 change removed a long-standing size limit, exposing an integer wraparound that can lead to kernel memory corruption. The published proof of concept also demonstrates an unusually reliable exploitation path compared to many traditional kernel exploits

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[–] nyan@sh.itjust.works 3 points 2 days ago

To get rid of the vulnerability, just blacklist the Open vSwitch kernel module if, for whatever reason, you have it installed. As far as I can tell, you probably don't need it unless the machine in question is acting as a switch or router.

No need for an urgent kernel update this time.