CVE Database›Document archive›CVE-2025-21718

CVE-2025-21718

kernel: net: rose: fix timer races against user threads

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Severity

Important

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · February 27, 2025

Updated · September 13, 2026

Description

A flaw was found in the Linux kernel's Rose network protocol. A race condition in the Rose timers, specifically when acquiring the socket spinlock without checking user thread ownership, can lead to a use-after-free vulnerability. This memory corruption issue could allow a local attacker to cause a denial of service or potentially execute arbitrary code.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-416 · Use After Free