GSD-2022-1004986 bpf: Do mark_chain_precision for ARG_CONST_ALLOC_SIZE_OR_ZERO
A precision marking issue in the Linux kernel BPF verifier could lead to undefined behavior, requiring a kernel patch to resolve.
- 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-2022-1004986?
GSD-2022-1004986 is a vulnerability in Kernel, published on 16 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
bpf: Do mark_chain_precision for ARG_CONST_ALLOC_SIZE_OR_ZERO
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 v5.19.8 by commit 2459615a8d7f44ac81f0965bc094e55ccb254717, it was introduced in version v5.8 by commit 457f44363a8894135c85b7a9afd2bd8196db24ab. For more details please see the references link.
Which versions are affected by GSD-2022-1004986?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1004986?
No fix has been published for GSD-2022-1004986 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1004986 being exploited?
There is no known exploitation of GSD-2022-1004986 in the wild and no public exploit code.