GSD-2023-1000086 mptcp: fix sleep in atomic at close time

Not scored Published

A sleep in atomic context bug in the Linux Kernel MPTCP subsystem can cause a system crash, requiring a kernel upgrade to fix.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is GSD-2023-1000086?

GSD-2023-1000086 is a denial of service vulnerability in Kernel, published on 17 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

mptcp: fix sleep in atomic at close time

This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v6.0.12 by commit d8e6c5500dbf0f3e87aace90d4beba6ae928e866, it was introduced in version v6.0 by commit 30e51b923e436b631e8d5b77fa5e318c6b066dc7. For more details please see the references link.

Which versions are affected by GSD-2023-1000086?

1 open source package ship an affected version, including Kernel.

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2023-1000086?

No fix has been published for GSD-2023-1000086 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is GSD-2023-1000086 being exploited?

There is no known exploitation of GSD-2023-1000086 in the wild and no public exploit code.

Sources

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