PT-2026-34970 · Linux · Linux Kernel

Published 2026-04-24 · Updated 2026-05-06 · CVE-2026-31618

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A divide-by-zero error exists in the tdfxfb driver within the fbdev subsystem. The issue occurs during the FBIOPUT VSCREENINFO operation because the driver uses the pixclock variable directly during a division operation, which can lead to a system crash.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

CVE-2026-31618

ECHO-FB82-B549-CECA

OPENSUSE-SU-2026:10703-1

Affected Products

Linux Kernel

References · 77

• https://git.kernel.org/stable/c/fc386daa6846551a88d338ba9864fc2812cd9030 · Patch
• https://git.kernel.org/stable/c/63dfb0b4741f46d65b667c4275132b3d1966acc8 · Patch
• https://cve.org/CVERecord?id=CVE-2026-31618 · Security Note
• https://ubuntu.com/security/CVE-2026-31618 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-31618 · Vendor Advisory
• https://git.kernel.org/stable/c/859a239d58a812b61267d9944b701affe6a6244e · Patch
• https://osv.dev/vulnerability/openSUSE-SU-2026:10703-1 · Vendor Advisory
• https://git.kernel.org/stable/c/6567d3e1aaadfebf44ce7dc9ea2630323cd4c736 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31618 · Vendor Advisory
• https://git.kernel.org/stable/c/53cb4e79a07124d2ebe502983c29800104080b47 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-31618 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31618 · Vendor Advisory
• https://git.kernel.org/stable/c/8f98b81fe011e1879e6a7b1247e69e06a5e17af2 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2026-31618 · Vendor Advisory
• https://suse.com/security/cve/CVE-2026-31577 · Note