Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fbdev: rivafb: fixed a divide error in nv3arb A userspace program can trigger the RIVA NV3 arbitration code by calling the FBIOPUTVSCREENINFO ioctl on /dev/fb. When doing so, the driver recomputes FIFO arbitration parameters in...

The vulnerability of the nv3_arb() function in the Linux kernel’s driver/video/fbdev/riva/riva_hw.c file allows a hacker to cause a service failure.

The vulnerability of the nv3arb function in the Linux kernel’s drivers/video/fbdev/riva/rivahw.c file is related to incorrect zero division operations. Exploiting this vulnerability can allow an attacker to cause system failures...

CVE-2026-23266 fbdev: rivafb: fix divide error in nv3_arb()

In the Linux kernel, the following vulnerability has been resolved: fbdev: rivafb: fix divide error in nv3arb A userspace program can trigger the RIVA NV3 arbitration code by calling the FBIOPUTVSCREENINFO ioctl on /dev/fb. When doing so, the driver recomputes FIFO arbitration parameters in nv3ar...