CVE-2026-43123
kernel: fbcon: check return value of con2fb_acquire_newinfo()
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 6, 2026
Updated · October 29, 2026
Description
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).
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-252 · Unchecked Return Value