GSD-2022-1006990 mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages
A race condition in the Linux kernel hugetlb subsystem can lead to system instability or denial of service due to improper locking.
- 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-2022-1006990?
GSD-2022-1006990 is a vulnerability in Kernel, published on 14 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages
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 v5.15.76 by commit 112a005d1ded04a4b41b6d01833cc0bda90625cc, it was introduced in version v4.4 by commit a88c769548047b21f76fd71e04b6a3300ff17160. For more details please see the references link.
Which versions are affected by GSD-2022-1006990?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1006990?
No fix has been published for GSD-2022-1006990 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1006990 being exploited?
There is no known exploitation of GSD-2022-1006990 in the wild and no public exploit code.