CVE-2026-28529

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gist.github.com/n4sm/0fd2479e0c23e0fa2f192cd8fda45750	Exploit
https://github.com/cryptodev-linux/cryptodev-linux/pull/104	Patch Third Party Advisory
https://nasm.re/posts/cryptodev-linux-vuln/	Third Party Advisory
https://www.vulncheck.com/advisories/cryptodev-linux-get-userbuf-use-after-free-lpe	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:cryptodev-linux:cryptodev-linux:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-25 14:16

Updated : 2026-08-17 18:02

NVD link : CVE-2026-28529

Mitre link : CVE-2026-28529

CVE.ORG link : CVE-2026-28529

JSON object : View

Products Affected

cryptodev-linux

cryptodev-linux

CWE

CWE-416

Use After Free

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