GSD-2021-1001609 md: fix a lock order reversal in md_alloc
A lock order reversal in the Linux kernel md_alloc function can cause a deadlock, leading to denial of service for local attackers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1001609?
GSD-2021-1001609 is a vulnerability in Kernel, published on 19 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
md: fix a lock order reversal in md_alloc
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 v5.4.150 by commit 2b5befcd404522caae0df7e085b699122f5196a3, it was introduced in version v3.0 by commit b0140891a8cea36469f58d23859e599b1122bd37. For more details please see the references link.
Which versions are affected by GSD-2021-1001609?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001609?
No fix has been published for GSD-2021-1001609 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1001609 being exploited?
There is no known exploitation of GSD-2021-1001609 in the wild and no public exploit code.