GSD-2021-1001815 mm, slub: fix potential memoryleak in kmem_cache_open()
A memory leak in the Linux kernel's SLUB allocator can lead to resource exhaustion and denial of service.
- 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-2021-1001815?
GSD-2021-1001815 is a memory corruption vulnerability in Kernel, published on 28 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
mm, slub: fix potential memoryleak in kmem_cache_open()
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 v5.4.156 by commit 4f5d1c29cfab5cb0ab885059818751bdef32e2bb, it was introduced in version v4.8 by commit 210e7a43fa905bccafa9bb5966fba1d71f33eb8b. For more details please see the references link.
Which versions are affected by GSD-2021-1001815?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001815?
No fix has been published for GSD-2021-1001815 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-2021-1001815 being exploited?
There is no known exploitation of GSD-2021-1001815 in the wild and no public exploit code.