GSD-2022-1004362 perf/core: Fix data race between perf_event_set_output() and perf_mmap_close()

Not scored Published

A data race in the Linux kernel perf subsystem allows local attackers to cause denial of service or potentially escalate privileges.

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-2022-1004362?

GSD-2022-1004362 is a vulnerability in Kernel, published on 31 Jul 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

perf/core: Fix data race between perf_event_set_output() and perf_mmap_close()

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 v5.15.58 by commit da3c256e2d0ebc87c7db0c605c9692b6f1722074, it was introduced in version v3.10 by commit 9bb5d40cd93c9dd4be74834b1dcb1ba03629716b. For more details please see the references link.

Which versions are affected by GSD-2022-1004362?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1004362?

No fix has been published for GSD-2022-1004362 yet. Limit exposure of the affected software until one is available.

Is GSD-2022-1004362 being exploited?

There is no known exploitation of GSD-2022-1004362 in the wild and no public exploit code.

Sources

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