CVE-2025-68296

Ecosystem	Package	Version

Vulnerabilities

CVE-2025-68296

In the Linux kernel, the following vulnerability has been resolved: drm, fbcon, vga_switcheroo: Avoid race condition in fbcon setup Protect vga_switcheroo_client_fb_set() with console lock. Avoids OOB access in fbcon_remap_all(). Without holding the console lock the call races with switching outputs. VGA switcheroo calls fbcon_remap_all() when switching clients. The fbcon function uses struct fb_info.node, which is set by register_framebuffer(). As the fb-helper code currently sets up VGA switcheroo before registering the framebuffer, the value of node is -1 and therefore not a legal value. For example, fbcon uses the value within set_con2fb_map() [1] as an index into an array. Moving vga_switcheroo_client_fb_set() after register_framebuffer() can result in VGA switching that does not switch fbcon correctly. Therefore move vga_switcheroo_client_fb_set() under fbcon_fb_registered(), which already holds the console lock. Fbdev calls fbcon_fb_registered() from within register_framebuffer(). Serializes the helper with VGA switcheroo's call to fbcon_remap_all(). Although vga_switcheroo_client_fb_set() takes an instance of struct fb_info as parameter, it really only needs the contained fbcon state. Moving the call to fbcon initialization is therefore cleaner than before. Only amdgpu, i915, nouveau and radeon support vga_switcheroo. For all other drivers, this change does nothing.

Published Dec 18, 2025

https://lore.kernel.org/linux-cve-announce/2025121641-CVE-2025-68296-c946@gregkh/

CVSS ScoreMedium

4.8


rpm	kernel	3.10.0-1062.0.0.0.1.el7
rpm	kernel	3.10.0-1062.1.1.0.1.el7
rpm	kernel	3.10.0-1062.1.1.el7
rpm	kernel	3.10.0-1062.1.2.0.1.el7
rpm	kernel	3.10.0-1062.1.2.el7
rpm	kernel	3.10.0-1062.12.1.0.1.el7
rpm	kernel	3.10.0-1062.12.1.el7
rpm	kernel	3.10.0-1062.18.1.0.1.el7
rpm	kernel	3.10.0-1062.18.1.el7
rpm	kernel	3.10.0-1062.4.1.0.1.el7
rpm	kernel	3.10.0-1062.4.1.el7
rpm	kernel	3.10.0-1062.4.2.el7
rpm	kernel	3.10.0-1062.4.3.0.1.el7
rpm	kernel	3.10.0-1062.4.3.el7
rpm	kernel	3.10.0-1062.7.1.0.1.el7
rpm	kernel	3.10.0-1062.7.1.el7
rpm	kernel	3.10.0-1062.9.1.0.1.el7
rpm	kernel	3.10.0-1062.9.1.el7
rpm	kernel	3.10.0-1062.el7
rpm	kernel	3.10.0-1127.0.0.0.1.el7
rpm	kernel	3.10.0-1127.10.1.0.1.el7
rpm	kernel	3.10.0-1127.10.1.el7
rpm	kernel	3.10.0-1127.13.1.0.1.el7
rpm	kernel	3.10.0-1127.13.1.el7
rpm	kernel	3.10.0-1127.18.2.0.1.el7
rpm	kernel	3.10.0-1127.18.2.el7
rpm	kernel	3.10.0-1127.19.1.0.1.el7
rpm	kernel	3.10.0-1127.19.1.0.2.el7
rpm	kernel	3.10.0-1127.19.1.el7
rpm	kernel	3.10.0-1127.8.2.0.1.el7
rpm	kernel	3.10.0-1127.8.2.el7
rpm	kernel	3.10.0-1127.el7
rpm	kernel	3.10.0-1136.el7
rpm	kernel	3.10.0-1160.102.1.0.1.el7
rpm	kernel	3.10.0-1160.102.1.0.2.el7
rpm	kernel	3.10.0-1160.105.1.0.1.el7
rpm	kernel	3.10.0-1160.105.1.0.2.el7
rpm	kernel	3.10.0-1160.108.1.0.1.el7
rpm	kernel	3.10.0-1160.108.1.0.2.el7
rpm	kernel	3.10.0-1160.11.1.0.1.el7
rpm	kernel	3.10.0-1160.11.1.el7
rpm	kernel	3.10.0-1160.114.2.0.1.el7
rpm	kernel	3.10.0-1160.114.2.0.2.el7
rpm	kernel	3.10.0-1160.118.1.0.1.el7
rpm	kernel	3.10.0-1160.118.1.0.2.el7
rpm	kernel	3.10.0-1160.119.1.0.1.el7
rpm	kernel	3.10.0-1160.119.1.0.2.el7
rpm	kernel	3.10.0-1160.119.1.0.3.el7
rpm	kernel	3.10.0-1160.119.1.0.4.el7
rpm	kernel	3.10.0-1160.119.1.0.5.el7

Ecosystem	Package	Version

CVE-2025-68296 | Components Impacted | Sonatype Guide | Sonatype Guide

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CVE-2025-68296