GSD-2022-1005027 mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte
A memory corruption flaw in the Linux kernel's hugetlb subsystem allows local attackers to potentially escalate privileges or cause a system crash.
- 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-2022-1005027?
GSD-2022-1005027 is a memory corruption vulnerability in Kernel, published on 16 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte
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 v5.19.6 by commit 3ada1b3e58db255a14ec73a59d7913e84dc5a8a4, it was introduced in version v5.13 by commit f619147104c8ea71e120e4936d2b68ec11a1e527. For more details please see the references link.
Which versions are affected by GSD-2022-1005027?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1005027?
No fix has been published for GSD-2022-1005027 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-2022-1005027 being exploited?
There is no known exploitation of GSD-2022-1005027 in the wild and no public exploit code.