CVE-2026-93170 Linux kernel dmaengine xilinx_dma - Race Condition

Linux kernel dmaengine xilinx_dma contains a race condition in AXIDMA and MCDMA interrupt handlers causing incorrect channel idle state management, letting attackers cause descriptor corruption or missed completions, exploit requires multiple queued descriptors.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.18% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Race Condition
Impact
Data Tampering, Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
17 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix for xilinx_dma channel idle state management.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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