GSD-2022-1005136 fscache: don't leak cookie access refs if invalidation is in progress or failed

Not scored Published

A resource leak in the Linux kernel fscache subsystem can lead to denial of service when cookie invalidation fails or is in progress.

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

What is GSD-2022-1005136?

GSD-2022-1005136 is a denial of service vulnerability in Kernel, published on 16 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

fscache: don't leak cookie access refs if invalidation is in progress or failed

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 v5.19.4 by commit 7a369dc87b66acc85d0cffcf39984344a203e20b, it was introduced in version v5.19 by commit 85e4ea1049c70fb99de5c6057e835d151fb647da. For more details please see the references link.

Which versions are affected by GSD-2022-1005136?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1005136?

No fix has been published for GSD-2022-1005136 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-2022-1005136 being exploited?

There is no known exploitation of GSD-2022-1005136 in the wild and no public exploit code.

Sources

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