GSD-2021-1000795 perf probe: Fix NULL pointer dereference in convert_variable_location()
A NULL pointer dereference in the Linux kernel perf probe tool allows local attackers to cause 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-2021-1000795?
GSD-2021-1000795 is a vulnerability in Kernel, published on 25 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
perf probe: Fix NULL pointer dereference in convert_variable_location()
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 v5.12.10 by commit eba7c76a5651392a9132c54aceddc5af8cfb0938, it was introduced in version v5.5 by commit 66f69b2197167cb99330c77a550da50f1f597abc. For more details please see the references link.
Which versions are affected by GSD-2021-1000795?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000795?
No fix has been published for GSD-2021-1000795 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1000795 being exploited?
There is no known exploitation of GSD-2021-1000795 in the wild and no public exploit code.