GSD-2022-1002663 ftrace: Clean up hash direct_functions on register failures
A memory corruption issue in the Linux kernel ftrace subsystem could allow local attackers to cause denial of service or escalate privileges.
- 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-2022-1002663?
GSD-2022-1002663 is a memory corruption 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
ftrace: Clean up hash direct_functions on register failures
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 v5.18.3 by commit a0392833a178cf109a57c2a9d4d531bdfc6cd98f, it was introduced in version v5.5 by commit 763e34e74bb7d5c316015e2e39fcc8520bfd071c. For more details please see the references link.
Which versions are affected by GSD-2022-1002663?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002663?
No fix has been published for GSD-2022-1002663 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-2022-1002663 being exploited?
There is no known exploitation of GSD-2022-1002663 in the wild and no public exploit code.