GSD-2022-1005396 xen/grants: prevent integer overflow in gnttab_dma_alloc_pages()
An integer overflow in the Linux Kernel's Xen grant table allocation allows local attackers to cause denial of service or potentially escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1005396?
GSD-2022-1005396 is a 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
xen/grants: prevent integer overflow in gnttab_dma_alloc_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 v5.15.66 by commit 763d77241d8fc79225a939a3512a5b986d4c9aae, it was introduced in version v5.5 by commit b3f7931f5c61ba39e81a5c958bf5d65ebb1838af. For more details please see the references link.
Which versions are affected by GSD-2022-1005396?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1005396?
No fix has been published for GSD-2022-1005396 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1005396 being exploited?
There is no known exploitation of GSD-2022-1005396 in the wild and no public exploit code.