Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.23, < 5.15.203 |
Related Weaknesses (CWE)
References
- 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
FAQ
What is CVE-2026-43123?
CVE-2026-43123 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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->f...
How severe is CVE-2026-43123?
CVE-2026-43123 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-43123?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.