GSD-2021-1000989 net: hamradio: fix memory leak in mkiss_close
A memory leak in the Linux kernel's hamradio driver allows local attackers to cause a denial of service by exhausting system memory.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000989?
GSD-2021-1000989 is a memory corruption vulnerability in Kernel, published on 30 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
net: hamradio: fix memory leak in mkiss_close
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 v5.10.46 by commit 290b0b6432e2599021db0b8d6046f756d931c29f, it was introduced in version v2.6.14 by commit 815f62bf742718458ba822a7e1f51f285eb997f2. For more details please see the references link.
Which versions are affected by GSD-2021-1000989?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000989?
No fix has been published for GSD-2021-1000989 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-2021-1000989 being exploited?
There is no known exploitation of GSD-2021-1000989 in the wild and no public exploit code.