Bug 2467067 (CVE-2026-43123) - CVE-2026-43123 kernel: fbcon: check return value of con2fb_acquire_newinfo()
Summary: CVE-2026-43123 kernel: fbcon: check return value of con2fb_acquire_newinfo()
Keywords:
Status: NEW
Alias: CVE-2026-43123
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-06 13:02 UTC by OSIDB Bzimport
Modified: 2026-05-06 17:37 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-05-06 13:02:30 UTC
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.


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