GSD-2023-1000284 xen/netback: don't call kfree_skb() with interrupts disabled
A bug in the Linux Kernel's Xen netback driver causes a crash when freeing network buffers with interrupts disabled, leading to 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-2023-1000284?
GSD-2023-1000284 is a denial of service vulnerability in Kernel, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
xen/netback: don't call kfree_skb() with interrupts disabled
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 v5.4.227 by commit 50e1ab7e638f1009d953658af8f6b2d7813a7883, it was introduced in version v5.4.168 by commit 0d99b3c6bd39a0a023e972d8f912fd47698bbbb8. For more details please see the references link.
Which versions are affected by GSD-2023-1000284?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000284?
No fix has been published for GSD-2023-1000284 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2023-1000284 being exploited?
There is no known exploitation of GSD-2023-1000284 in the wild and no public exploit code.