GSD-2022-1007921 bpf: Fix memory leaks in __check_func_call
A memory leak in the Linux kernel BPF verifier allows local attackers to cause denial of service by exhausting system memory.
- 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-2022-1007921?
GSD-2022-1007921 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: Fix memory leaks in __check_func_call
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 v5.15.80 by commit d4944497827a3d14bc5a26dbcfb7433eb5a956c0, it was introduced in version v5.13 by commit 69c087ba6225b574afb6e505b72cb75242a3d844. For more details please see the references link.
Which versions are affected by GSD-2022-1007921?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1007921?
No fix has been published for GSD-2022-1007921 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-2022-1007921 being exploited?
There is no known exploitation of GSD-2022-1007921 in the wild and no public exploit code.