CVE-2026-43123
MEDIUM severity · CVSS 5.5 · CWE-476
5.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/011a0502801c8536f64141a2b61362c14f456544 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/011a0502801c8536f64141a2b61362c14f456544Patch
- https://git.kernel.org/stable/c/0b038c0be6827dd2dbb1ce4f8d92d97c80cbe9ccPatch
- https://git.kernel.org/stable/c/11a93180a70bb3095a9bd80d113d9277e30d9959Patch
- https://git.kernel.org/stable/c/3b5a754ec86bc6064af9aca76eb191c2405e6b0cPatch
- https://git.kernel.org/stable/c/a785c4e2a999c2d51dfcf40d317cfb30cc735d2cPatch
- https://git.kernel.org/stable/c/d3e535533767c85788529e626478718b7e95a59fPatch
- https://git.kernel.org/stable/c/f57b61624c86ef8f87f6e6b7dd0755de03d90e89Patch