Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate 2026-05-08T00:00:00 kernel: drm/tests: shmem: Hold reservation lock around vmap/vunmap 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CWE-413

A flaw was found in the Linux kernel's Direct Rendering Manager (DRM) subsystem, specifically within the shared memory (shmem) test module. This vulnerability occurs because the reservation lock is not properly held during vmap and vunmap operations. A local attacker could potentially exploit this flaw to trigger kernel warnings, leading to system instability or a denial of service (DoS) condition.

Red Hat Enterprise Linux 10 Fix deferred kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Fix deferred kernel Red Hat Enterprise Linux 9 Fix deferred kernel-rt https://www.cve.org/CVERecord?id=CVE-2025-71301 https://nvd.nist.gov/vuln/detail/CVE-2025-71301 https://lore.kernel.org/linux-cve-announce/2026050825-CVE-2025-71301-e6f6@gregkh/T