CVE-2024-27409: linux kernel — Fix

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.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor	Product	Versions
linux	linux_kernel	6.5 — 6.6.21
linux	linux_kernel	6.7 — 6.7.9
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/17be6f5cb223f22e4733ed8fe8b2247cbb677716 https://git.kernel.org/stable/c/227ef58a9b0c372efba422e8886a8015a1509eba https://git.kernel.org/stable/c/712a92a48158e02155b4b6b21e03a817f78c9b7e https://git.kernel.org/stable/c/17be6f5cb223f22e4733ed8fe8b2247cbb677716 https://git.kernel.org/stable/c/227ef58a9b0c372efba422e8886a8015a1509eba https://git.kernel.org/stable/c/712a92a48158e02155b4b6b21e03a817f78c9b7e

Frequently Asked Questions

What is CVE-2024-27409? +

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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-27409? +

CVE-2024-27409 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-27409? +

CVE-2024-27409 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-27409? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-27409