GSD-2022-1008260 btrfs: fix inode list leak during backref walking at resolve_indirect_refs()
A memory leak in the btrfs filesystem allows local attackers to cause denial of service by exhausting kernel memory during backref walking.
- 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-2022-1008260?
GSD-2022-1008260 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 v4.19.265 by commit cded2c89774b99b67c98147ae103ea878c92a206, it was introduced in version v3.5 by commit 3301958b7c1dae8f0f5ded63aa881e0b71e78464. For more details please see the references link.
Which versions are affected by GSD-2022-1008260?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1008260?
No fix has been published for GSD-2022-1008260 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-2022-1008260 being exploited?
There is no known exploitation of GSD-2022-1008260 in the wild and no public exploit code.