GSD-2022-1000649 selinux: fix double free of cond_list on error paths

Not scored Published

A double free vulnerability in the Linux kernel SELinux subsystem could allow attackers to cause a denial of service or potentially execute arbitrary code.

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

What is GSD-2022-1000649?

GSD-2022-1000649 is an use after free vulnerability in Kernel, published on 27 Feb 2022.

Official description

selinux: fix double free of cond_list on error paths

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 v5.16.8 by commit 7ed9cbf7ac0d4ed86b356e1b944304ae9ee450d4. For more details please see the references link.

Which versions are affected by GSD-2022-1000649?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1000649?

No fix has been published for GSD-2022-1000649 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is GSD-2022-1000649 being exploited?

There is no known exploitation of GSD-2022-1000649 in the wild and no public exploit code.

Sources

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