GSD-2023-1000281 mm/gup: fix gup_pud_range() for dax
A bug in the Linux kernel's get_user_pages function for DAX devices can cause a system crash, requiring local access and DAX configuration.
- 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-2023-1000281?
GSD-2023-1000281 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: fix gup_pud_range() for dax
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 v5.4.227 by commit 04edfa3dc06ecfc6133a33bc7271298782dee875, it was introduced in version v5.0 by commit 414fd080d125408cb15d04ff4907e1dd8145c8c7. For more details please see the references link.
Which versions are affected by GSD-2023-1000281?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000281?
No fix has been published for GSD-2023-1000281 yet. Limit exposure of the affected software until one is available.
Is GSD-2023-1000281 being exploited?
There is no known exploitation of GSD-2023-1000281 in the wild and no public exploit code.