GSD-2022-1003444 bpf: Fix excessive memory allocation in stack_map_alloc()
A local attacker can trigger excessive memory allocation in the Linux kernel BPF stack map, potentially causing a denial of service.
- 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-2022-1003444?
GSD-2022-1003444 is a denial of service vulnerability in Kernel, published on 28 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
bpf: Fix excessive memory allocation in stack_map_alloc()
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 v5.15.45 by commit 51f6657e94439f303c731b57734b9dc255687dff, it was introduced in version v5.3 by commit b936ca643ade11f265fa10e5fb71c20d9c5243f1. For more details please see the references link.
Which versions are affected by GSD-2022-1003444?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1003444?
No fix has been published for GSD-2022-1003444 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2022-1003444 being exploited?
There is no known exploitation of GSD-2022-1003444 in the wild and no public exploit code.