GSD-2022-1007960 bpf: Fix wrong reg type conversion in release_reference()
A wrong register type conversion in the Linux kernel BPF subsystem can lead to memory corruption, potentially allowing local attackers to escalate privileges or execute code.
- 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-2022-1007960?
GSD-2022-1007960 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
bpf: Fix wrong reg type conversion in release_reference()
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 v5.15.79 by commit 466ce46f251dfb259a8cbaa895ab9edd6fb56240, it was introduced in version v4.20 by commit fd978bf7fd312581a7ca454a991f0ffb34c4204b. For more details please see the references link.
Which versions are affected by GSD-2022-1007960?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1007960?
No fix has been published for GSD-2022-1007960 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-2022-1007960 being exploited?
There is no known exploitation of GSD-2022-1007960 in the wild and no public exploit code.