GSD-2022-1008156 bpf, test_run: Fix alignment problem in bpf_prog_test_run_skb()
An alignment issue in the Linux kernel's BPF test_run function can lead to memory corruption, potentially allowing local attackers to cause crashes 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-2022-1008156?
GSD-2022-1008156 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, test_run: Fix alignment problem in bpf_prog_test_run_skb()
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 v5.4.225 by commit 7a704dbfd3735304e261f2787c52fbc7c3884736, it was introduced in version v4.12 by commit 1cf1cae963c2e6032aebe1637e995bc2f5d330f4. For more details please see the references link.
Which versions are affected by GSD-2022-1008156?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1008156?
No fix has been published for GSD-2022-1008156 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-2022-1008156 being exploited?
There is no known exploitation of GSD-2022-1008156 in the wild and no public exploit code.