Unrated severityNVD Advisory· Published Mar 25, 2026· Updated Mar 25, 2026
cryptodev-linux <= 1.14 get_userbuf Use After Free LPE
CVE-2026-28529
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2<=1.14+ 1 more
- (no CPE)range: <=1.14
- (no CPE)range: 0
Patches
Vulnerability mechanics
References
4- github.com/cryptodev-linux/cryptodev-linux/pull/104mitrepatch
- gist.github.com/n4sm/0fd2479e0c23e0fa2f192cd8fda45750mitreexploit
- nasm.re/posts/cryptodev-linux-vuln/mitretechnical-descriptionexploit
- www.vulncheck.com/advisories/cryptodev-linux-get-userbuf-use-after-free-lpemitrethird-party-advisory
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