GSD-2021-1002263 iavf: free q_vectors before queues in iavf_disable_vf
A use-after-free vulnerability in the iavf kernel driver allows local attackers to cause denial of service or potentially execute code.
- 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-2021-1002263?
GSD-2021-1002263 is an use after free vulnerability in Kernel, published on 29 Nov 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
iavf: free q_vectors before queues in iavf_disable_vf
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 v5.4.162 by commit 926e8c83d4c1c2dac0026637eb0d492df876489e, it was introduced in version v4.13 by commit 65c7006f234c9ede887d468f595f259a5c5cc552. For more details please see the references link.
Which versions are affected by GSD-2021-1002263?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002263?
No fix has been published for GSD-2021-1002263 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is GSD-2021-1002263 being exploited?
There is no known exploitation of GSD-2021-1002263 in the wild and no public exploit code.