GSD-2021-1000924 net: hamradio: fix memory leak in mkiss_close
A memory leak in the Linux kernel's hamradio driver allows local attackers to exhaust system memory, causing 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-2021-1000924?
GSD-2021-1000924 is a denial of service 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 v5.4.128 by commit a49cbb762ef20655f5c91abdc13658b0af5e159d, 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-2021-1000924?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000924?
No fix has been published for GSD-2021-1000924 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2021-1000924 being exploited?
There is no known exploitation of GSD-2021-1000924 in the wild and no public exploit code.