GSD-2022-1002959 f2fs: fix to avoid f2fs_bug_on() in dec_valid_node_count()

Not scored Published

A bug in the Linux kernel f2fs filesystem can trigger a kernel panic, causing a denial of service.

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

What is GSD-2022-1002959?

GSD-2022-1002959 is a denial of service vulnerability in Kernel, published on 28 Jun 2022. It can only be exploited from the same machine or local network.

Official description

f2fs: fix to avoid f2fs_bug_on() in dec_valid_node_count()

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 v5.17.14 by commit 89d9a48d0cd30429463ea4e37ca83be6773ed5eb. For more details please see the references link.

Which versions are affected by GSD-2022-1002959?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1002959?

No fix has been published for GSD-2022-1002959 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-2022-1002959 being exploited?

There is no known exploitation of GSD-2022-1002959 in the wild and no public exploit code.

Sources

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