GSD-2021-1002708 btrfs: fix memory leak in __add_inode_ref()
A memory leak in the btrfs filesystem allows local attackers to exhaust kernel memory, potentially causing a denial of service.
- 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-2021-1002708?
GSD-2021-1002708 is a memory corruption vulnerability in Kernel, published on 27 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
btrfs: fix memory leak in __add_inode_ref()
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 v5.10.88 by commit 005d9292b5b2e71a009f911bd85d755009b37242, it was introduced in version v5.5 by commit d3316c8233bb05e0dd855d30aac347bb8ad76ee4. For more details please see the references link.
Which versions are affected by GSD-2021-1002708?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002708?
No fix has been published for GSD-2021-1002708 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-2021-1002708 being exploited?
There is no known exploitation of GSD-2021-1002708 in the wild and no public exploit code.