CVE-2024-27409

dmaengine: dw-edma: HDMA: Add sync read before starting the DMA transfer in remote setup

MEDIUM
5.5
CVSS Score
Published: May 17, 2024 at 11:50 AM UTC
Updated: August 5, 2026 at 12:04 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.5 ≤ v < 6.6.216.5 ≤ v < 6.7.96.5 ≤ v < 6.86.7 ≤ v < 6.7.96.8 rc16.8 rc26.8 rc36.8 rc46.8 rc56.8 rc6e74c39573d35e9ac441090ff8183aa3dc2540649
Vendor states this is fixed in 17be6f5cb223f22e4733ed8fe8b2247cbb677716 (fixed)
Vendor states this is fixed in 227ef58a9b0c372efba422e8886a8015a1509eba (fixed)
Vendor states this is fixed in 712a92a48158e02155b4b6b21e03a817f78c9b7e (fixed)
Vendor states this is fixed in 6.5 (unaffected)
Vendor states this is fixed in 6.6.21 (unaffected)
Vendor states this is fixed in 6.7.9 (unaffected)
Vendor states this is fixed in 6.8 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/17be6f5cb223f22e4733ed8fe8b2247cbb677716
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/227ef58a9b0c372efba422e8886a8015a1509eba
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/712a92a48158e02155b4b6b21e03a817f78c9b7e

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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