CVE-2026-43123

MEDIUM

fbcon: check return value of con2fb_acquire_newinfo()

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: fbcon: check return value of con2fb_acquire_newinfo() If fbcon_open() fails when called from con2fb_acquire_newinfo() then info->fbcon_par pointer remains NULL which is later dereferenced. Add check for return value of the function con2fb_acquire_newinfo() to avoid it. Found by Linux Verification Center (linuxtesting.org) with SVACE.

References (7)

Core 7

Scores

CVSS v3 5.5
EPSS 0.0013
EPSS Percentile 2.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (23)
linux/Kernel 2.6.23 - 5.15.203linux
linux/Kernel 5.16.0 - 6.1.165linux
linux/Kernel 6.13.0 - 6.18.16linux
linux/Kernel 6.19.0 - 6.19.6linux
linux/Kernel 6.2.0 - 6.6.128linux
linux/Kernel 6.7.0 - 6.12.75linux
Linux/Linux < 2.6.23
Linux/Linux 2.6.23
Linux/Linux 5.15.203 - 5.15.*
Linux/Linux 6.1.165 - 6.1.*
... and 13 more
Published May 06, 2026
Tracked Since May 06, 2026