CVE-2026-28529: Cryptodev-Linux

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

cryptodev-linux version 1.14 and prior contain a page reference handling flaw in the get_userbuf function of the /dev/crypto device driver that allows local users to trigger use-after-free conditions. Attackers with access to the /dev/crypto interface can repeatedly decrement reference counts of controlled pages to achieve local privilege escalation.

Affected products

• Cryptodev-Linux Cryptodev-Linux: up to and including 1.14

Published 2026-03-25. Last modified 2026-08-17.