GSD-2022-1006557 netfilter: nf_tables: fix percpu memory leak at nf_tables_addchain()
A local attacker with high privileges can trigger a percpu memory leak in the Linux kernel netfilter subsystem, potentially causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1006557?
GSD-2022-1006557 is a memory corruption vulnerability in Kernel, published on 9 Oct 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
netfilter: nf_tables: fix percpu memory leak at nf_tables_addchain()
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 v5.15.71 by commit 08d7524f366a886b99b1630a24a27dd6e0d7f852, it was introduced in version v5.3 by commit 3bc158f8d0330f0ac58597c023acca2234c14616. For more details please see the references link.
Which versions are affected by GSD-2022-1006557?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1006557?
No fix has been published for GSD-2022-1006557 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-2022-1006557 being exploited?
There is no known exploitation of GSD-2022-1006557 in the wild and no public exploit code.