CVE-2024-27409 dmaengine: dw-edma: HDMA: Add sync read before starting the DMA transfer in remote setup
A race condition in the Linux kernel DW eDMA driver can cause errors during DMA transfers in remote setups, potentially leading to system instability.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-27409?
CVE-2024-27409 is a high-severity vulnerability in Linux kernel, published on 17 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: dw-edma: HDMA: Add sync read before starting the DMA transfer in remote setup
The Linked list element and pointer are not stored in the same memory as the HDMA controller register. If the doorbell register is toggled before the full write of the linked list a race condition error will occur. In remote setup we can only use a readl to the memory to assure the full write has occurred.
Which versions are affected by CVE-2024-27409?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-27409?
Apply the vendor's patch.
Is CVE-2024-27409 being exploited?
There is no known exploitation of CVE-2024-27409 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-27409, DEBIAN-CVE-2024-27409, GHSA-g8hj-4pg6-q26c, UBUNTU-CVE-2024-27409.