CVE-2024-27408

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

MEDIUM
4.7
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
MEDIUM4.7
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: dw-edma: eDMA: 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 eDMA 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.

5.3 ≤ v < 6.6.215.3 ≤ v < 6.7.95.3 ≤ v < 6.86.7 ≤ v < 6.7.96.8 rc16.8 rc26.8 rc36.8 rc46.8 rc56.8 rc67e4b8a4fbe2cecab0959e862604803d063f50029
Vendor states this is fixed in bbcc1c83f343e580c3aa1f2a8593343bf7b55bba (fixed)
Vendor states this is fixed in d24fe6d5a1cfdddb7a9ef56736ec501c4d0a5fd3 (fixed)
Vendor states this is fixed in f396b4df27cfe01a99f4b41f584c49e56477be3a (fixed)
Vendor states this is fixed in 5.3 (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/bbcc1c83f343e580c3aa1f2a8593343bf7b55bba
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d24fe6d5a1cfdddb7a9ef56736ec501c4d0a5fd3
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f396b4df27cfe01a99f4b41f584c49e56477be3a

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

Quick Info

StatusMODIFIED
CWE
CWE-362

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