GSD-2021-1000404 nbd: Fix NULL pointer in flush_workqueue
A NULL pointer dereference in the Linux Kernel NBD driver can cause a system crash, requiring a kernel patch to resolve.
- 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-2021-1000404?
GSD-2021-1000404 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
nbd: Fix NULL pointer in flush_workqueue
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 v5.4.120 by commit 1c4962df938891af9ab4775f5224ef8601764107, it was introduced in version v5.4 by commit e9e006f5fcf2bab59149cb38a48a4817c1b538b4. For more details please see the references link.
Which versions are affected by GSD-2021-1000404?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000404?
No fix has been published for GSD-2021-1000404 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1000404 being exploited?
There is no known exploitation of GSD-2021-1000404 in the wild and no public exploit code.