GSD-2023-1001818 mm: Always release pages to the buddy allocator in memblock_free_late().
A memory management flaw in the Linux kernel may cause pages to be improperly released, potentially leading to system instability or 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-2023-1001818?
GSD-2023-1001818 is a memory corruption vulnerability in Kernel, published on 31 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
mm: Always release pages to the buddy allocator in memblock_free_late().
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 v5.4.229 by commit ecd47ffc99d319b7f330e0a8463c33885b7e64d4, it was introduced in version v4.2 by commit 3a80a7fa7989fbb6aa56bb6ad31811b62cf99e60. For more details please see the references link.
Which versions are affected by GSD-2023-1001818?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1001818?
No fix has been published for GSD-2023-1001818 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-2023-1001818 being exploited?
There is no known exploitation of GSD-2023-1001818 in the wild and no public exploit code.