GSD-2023-1002074 dmaengine: Fix double increment of client_count in dma_chan_get()
A double increment bug in the Linux kernel DMA engine can lead to integer overflow and potential 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-2023-1002074?
GSD-2023-1002074 is a vulnerability in Kernel, published on 13 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
dmaengine: Fix double increment of client_count in dma_chan_get()
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 v5.15.91 by commit 71c601965532c38030133535f7cd93c1efa75af1, it was introduced in version v4.0 by commit d2f4f99db3e9ec8b063cf2e45704e2bb95428317. For more details please see the references link.
Which versions are affected by GSD-2023-1002074?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1002074?
No fix has been published for GSD-2023-1002074 yet. Limit exposure of the affected software until one is available.
Is GSD-2023-1002074 being exploited?
There is no known exploitation of GSD-2023-1002074 in the wild and no public exploit code.