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.

Scores

CVSS v3 5.5
EPSS 0.0001
EPSS Percentile 2.4%
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 (17)
Linux/Linux < 2.6.23
Linux/Linux 2.6.23
Linux/Linux 5.15.203 - 5.15.*
Linux/Linux 6.1.165 - 6.1.*
Linux/Linux 6.12.75 - 6.12.*
Linux/Linux 6.18.16 - 6.18.*
Linux/Linux 6.19.6 - 6.19.*
Linux/Linux 6.6.128 - 6.6.*
Linux/Linux 7.0
Linux/Linux d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e - 011a0502801c8536f64141a2b61362c14f456544
... and 7 more
Published May 06, 2026
Tracked Since May 06, 2026