CVE-2026-93042 Linux Kernel dmaengine - Use After Free

Linux kernel dmaengine dw-edma contains a use-after-free vulnerability caused by late callbacks after dmaengine_terminate_sync() in descriptor termination, letting attackers cause memory corruption or leaks, exploit requires device to perform DMA transfers.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.40% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Use After Free
Impact
Use After Free, Information Disclosure
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/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 dw-edma descriptor termination.

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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