GSD-2023-1000510 futex: Fix futex_waitv() hrtimer debug object leak on kcalloc error
A local attacker can trigger a memory leak in the Linux kernel futex subsystem, potentially leading to resource exhaustion and 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-2023-1000510?
GSD-2023-1000510 is a memory corruption vulnerability in Kernel, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
futex: Fix futex_waitv() hrtimer debug object leak on kcalloc error
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 v6.0.17 by commit c496fdc3c6a7c51e4c10f7cc14ee5192a1df6472, it was introduced in version v5.16 by commit bf69bad38cf63d980e8a603f8d1bd1f85b5ed3d9. For more details please see the references link.
Which versions are affected by GSD-2023-1000510?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000510?
No fix has been published for GSD-2023-1000510 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-2023-1000510 being exploited?
There is no known exploitation of GSD-2023-1000510 in the wild and no public exploit code.