GSD-2021-1000160 s390/zcrypt: fix zcard and zqueue hot-unplug memleak
A memory leak in the s390/zcrypt driver during hot-unplug operations can lead to resource exhaustion and denial of service.
- 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-2021-1000160?
GSD-2021-1000160 is a memory corruption vulnerability in Kernel, published on 31 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
s390/zcrypt: fix zcard and zqueue hot-unplug memleak
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 v5.10.36 by commit 026499a9c2e002e621ad568d1378324ae97e5524, it was introduced in version v5.10 by commit 29c2680fd2bf3862ff5cf2957f198512493156f9. For more details please see the references link.
Which versions are affected by GSD-2021-1000160?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000160?
No fix has been published for GSD-2021-1000160 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-2021-1000160 being exploited?
There is no known exploitation of GSD-2021-1000160 in the wild and no public exploit code.