GSD-2022-1002630 blk-mq: don't touch ->tagset in blk_mq_get_sq_hctx
A null pointer dereference in the Linux kernel block layer allows local attackers to cause a system crash.
- 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-2022-1002630?
GSD-2022-1002630 is a vulnerability in Kernel, published on 28 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
blk-mq: don't touch ->tagset in blk_mq_get_sq_hctx
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 v5.18.4 by commit 70fdd922c7bf8949f8df109cf2635dff64c90392, it was introduced in version v5.12 by commit b6e68ee82585f2ee890b0a897a6aacbf49a467bb. For more details please see the references link.
Which versions are affected by GSD-2022-1002630?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002630?
No fix has been published for GSD-2022-1002630 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1002630 being exploited?
There is no known exploitation of GSD-2022-1002630 in the wild and no public exploit code.