CVE-2023-38409

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).

• CWE-362

• https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.12Mailing List, Release Notes
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=fffb0b52d5258554c645c966c6cbef7de50b851dMailing List, Patch
• https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.12Mailing List, Release Notes
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=fffb0b52d5258554c645c966c6cbef7de50b851dMailing List, Patch

Published

Jul 17, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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