GSD-2022-1000233 bpf: Use VM_MAP instead of VM_ALLOC for ringbuf
A memory management flaw in the Linux kernel BPF ring buffer allows local attackers to potentially 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-2022-1000233?
GSD-2022-1000233 is a memory corruption vulnerability in Kernel, published on 18 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
bpf: Use VM_MAP instead of VM_ALLOC for ringbuf
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 v5.10.99 by commit 6304a613a97d6dcd49b93fbad31e9f39d1e138d6, it was introduced in version v5.8 by commit 457f44363a8894135c85b7a9afd2bd8196db24ab. For more details please see the references link.
Which versions are affected by GSD-2022-1000233?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000233?
No fix has been published for GSD-2022-1000233 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-2022-1000233 being exploited?
There is no known exploitation of GSD-2022-1000233 in the wild and no public exploit code.