GhostLock: 15-Year-Old Linux Kernel Flaw Gives Any Local User Root in 5 Seconds

3 months ago by schnurrito to c/linux

GhostLock (CVE-2026-43499) is a use-after-free in Linux futex priority-inheritance code that has shipped by default in nearly every distro since 2011. Nebula Security
st3ph3n 6 points 3 months ago

It's been a rough few weeks for kernel vulnerabilities.

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bigkahuna1986 6 points 3 months ago

Since it's been there from 2011, any chance I can get root on my old android tablet with this?

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reluctant_squidd 3 points 3 months ago

Would this affect a rootless podman container?

I read the article, or at least most of it and didn’t see anything that hints either way.

Seems to be more regarding specifically system authorized users able to elevate themselves to root.

Unless I am missing something?

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db0 1 point 3 months ago

It says it can escape containers so I assume it can

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reluctant_squidd 1 point 3 months ago

Yeah. Probably. Just wasn’t sure if the extra abstraction rootless is supposed to provide would affect it. I assume not.

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