GSD-2022-1005523 bpf: Don't reinit map value in prealloc_lru_pop
A memory corruption flaw in the Linux kernel BPF subsystem 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-2022-1005523?
GSD-2022-1005523 is a memory corruption vulnerability in Kernel, published on 17 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
bpf: Don't reinit map value in prealloc_lru_pop
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 v5.15.63 by commit 18a994e0661ce3c93d861dfaefcc0ad9a43fdb10, it was introduced in version v5.15 by commit 68134668c17f31f51930478f75495b552a411550. For more details please see the references link.
Which versions are affected by GSD-2022-1005523?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1005523?
No fix has been published for GSD-2022-1005523 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-2022-1005523 being exploited?
There is no known exploitation of GSD-2022-1005523 in the wild and no public exploit code.