CVE-2023-38409

Summary

CVE-2023-38409 is a vulnerability affecting the Linux kernel version prior to 6.2.12. In the file drivers/video/fbdev/core/fbcon.c, there is an issue with the 'set_con2fb_map' function. This flaw arises from the assignment of the con2fb_map only to the first virtual console (vc), resulting in the fbcon_registered_fb and fbcon_display arrays becoming desynchronized in the 'fbcon_mode_deleted' function. The desynchronization can potentially lead to security vulnerabilities or incorrect console behavior.

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