GSD-2021-1002602 io_uring: ensure task_work gets run as part of cancelations

Not scored Published

A flaw in Linux kernel io_uring cancellation handling may allow local attackers to trigger undefined behavior or resource issues.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is GSD-2021-1002602?

GSD-2021-1002602 is a vulnerability in Kernel, published on 19 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

io_uring: ensure task_work gets run as part of cancelations

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 v5.15.8 by commit 8e12976c0c19ebc14b60046b1348c516a74c25a2. For more details please see the references link.

Which versions are affected by GSD-2021-1002602?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1002602?

No fix has been published for GSD-2021-1002602 yet. Limit exposure of the affected software until one is available.

Is GSD-2021-1002602 being exploited?

There is no known exploitation of GSD-2021-1002602 in the wild and no public exploit code.

Sources

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