GSD-2021-1000265 io_uring: fix overflows checks in provide buffers
An integer overflow in Linux kernel io_uring provide buffers allows local attackers to potentially escalate privileges or execute code.
- 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-2021-1000265?
GSD-2021-1000265 is a vulnerability in Kernel, published on 31 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
io_uring: fix overflows checks in provide buffers
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 v5.12.4 by commit 84b8c266c4bfe9ed5128e13253c388deb74b1b03, it was introduced in version v5.8 by commit efe68c1ca8f49e8c06afd74b699411bfbb8ba1ff. For more details please see the references link.
Which versions are affected by GSD-2021-1000265?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000265?
No fix has been published for GSD-2021-1000265 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1000265 being exploited?
There is no known exploitation of GSD-2021-1000265 in the wild and no public exploit code.