GSD-2022-1007994 btrfs: fix inode list leak during backref walking at resolve_indirect_refs()

Not scored Published

A memory leak in the btrfs filesystem can lead to resource exhaustion and denial of service, requiring a kernel patch.

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-2022-1007994?

GSD-2022-1007994 is a memory corruption vulnerability in Kernel, published on 8 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

btrfs: fix inode list leak during backref walking at resolve_indirect_refs()

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 v5.15.78 by commit 6ba3479f9e96b9ad460c7e77abc26dd16e5dec4f, it was introduced in version v3.5 by commit 3301958b7c1dae8f0f5ded63aa881e0b71e78464. For more details please see the references link.

Which versions are affected by GSD-2022-1007994?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1007994?

No fix has been published for GSD-2022-1007994 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is GSD-2022-1007994 being exploited?

There is no known exploitation of GSD-2022-1007994 in the wild and no public exploit code.

Sources

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