CVE-2023-38409 Race condition in n/a

What is CVE-2023-38409?

CVE-2023-38409 is a medium-severity vulnerability in Linux kernel, published on 17 Jul 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An issue was discovered in set_con2fb_map in drivers/video/fbdev/core/fbcon.c in the Linux kernel before 6.2.12. Because an assignment occurs only for the first vc, the fbcon_registered_fb and fbcon_display arrays can be desynchronized in fbcon_mode_deleted (the con2fb_map points at the old fb_info).

Weakness: CWE-362

Which versions are affected by CVE-2023-38409?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-38409?

Upgrade to a fixed version.

Is CVE-2023-38409 being exploited?

There is no known exploitation of CVE-2023-38409 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-27499, AZL-27671, DEBIAN-CVE-2023-38409, GHSA-jrp6-94m7-j7gw, UBUNTU-CVE-2023-38409.