GSD-2022-1000779 xen/netfront: destroy queues before real_num_tx_queues is zeroed
A use-after-free vulnerability in the Xen netfront driver can lead to a denial of service, requiring a kernel patch.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1000779?
GSD-2022-1000779 is an use after free vulnerability in Kernel, published on 18 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
xen/netfront: destroy queues before real_num_tx_queues is zeroed
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 v5.15.27 by commit a63eb1e4a2e1a191a90217871e67fba42fd39255, it was introduced in version v5.15.17 by commit 0abd3f9903fae6ecf8db3c89a459971fe7925499. For more details please see the references link.
Which versions are affected by GSD-2022-1000779?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000779?
No fix has been published for GSD-2022-1000779 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-2022-1000779 being exploited?
There is no known exploitation of GSD-2022-1000779 in the wild and no public exploit code.