GSD-2022-1000902 xen/netfront: destroy queues before real_num_tx_queues is zeroed
A use-after-free vulnerability in the Linux kernel's Xen netfront driver can lead to a denial of service.
- 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-2022-1000902?
GSD-2022-1000902 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 v4.19.233 by commit 198cdc287769c717dafff5887c6125cb7a373bf3, it was introduced in version v4.19.226 by commit 35cad2003b6447932cfe91f795090586306738e8. For more details please see the references link.
Which versions are affected by GSD-2022-1000902?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000902?
No fix has been published for GSD-2022-1000902 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-2022-1000902 being exploited?
There is no known exploitation of GSD-2022-1000902 in the wild and no public exploit code.