Copyright © 2012 Red Hat, Inc. All rights reserved.
Low
2026-05-06T00:00:00
kernel: fbcon: check return value of con2fb_acquire_newinfo()
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-252
A flaw was found in the fbcon component of the Linux kernel. A local user could exploit a missing return value check in the con2fb_acquire_newinfo() function. This oversight can lead to a null pointer dereference, potentially causing a system crash and resulting in a Denial of Service (DoS).
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
Fix deferred
kernel
Red Hat Enterprise Linux 8
Fix deferred
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-2026-43123
https://nvd.nist.gov/vuln/detail/CVE-2026-43123
https://lore.kernel.org/linux-cve-announce/2026050618-CVE-2026-43123-1166@gregkh/T