GSD-2023-1000533 mm/gup: disallow FOLL_FORCE|FOLL_WRITE on hugetlb mappings
A local attacker can exploit hugetlb mappings to escalate privileges due to improper handling of FOLL_FORCE flags.
- 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-2023-1000533?
GSD-2023-1000533 is a vulnerability in Kernel, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
mm/gup: disallow FOLL_FORCE|FOLL_WRITE on hugetlb mappings
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 v6.0.16 by commit 9b34db7f867dd738fc936da7d26a1ece62f2741e, it was introduced in version v6.0 by commit 1d8d14641fd94a01b20a4abbf2749fd8eddcf57b. For more details please see the references link.
Which versions are affected by GSD-2023-1000533?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000533?
No fix has been published for GSD-2023-1000533 yet. Limit exposure of the affected software until one is available.
Is GSD-2023-1000533 being exploited?
There is no known exploitation of GSD-2023-1000533 in the wild and no public exploit code.