VulnSocial

CVE-2026-31605Patch(linux / linux_kernel)

LOWCVSS 5.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch linux linux_kernel systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

In the Linux kernel, the following vulnerability has been resolved: fbdev: udlfb: avoid divide-by-zero on FBIOPUT_VSCREENINFO Much like commit 19f953e74356 ("fbdev: fb_pm2fb: Avoid potential divide by zero error"), we also need to prevent that same crash from happening in the udlfb driver as it uses pixclock directly when dividing, which will crash.

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0.5/ 10 priority

Sources & remediation

Patch / fix
Other references
Weakness type (CWE)
CWE-369

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • linux_kernel

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 2 signals
  • Technical details provided in 2 signals
  • Peaked 1d ago at 1 mentions (2026-04-24); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
linux
Products
linux_kernel

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-04-24: 1Mentions · 2026-04-26: 1Patch / Workaround · 2026-04-24: 1Patch / Workaround · 2026-04-26: 1Technical Details · 2026-04-24: 1Technical Details · 2026-04-26: 104-2404-26
Signal classification1 categories
Patch
2100.0%
Referenced assets2 URLs
Full discourse2 posts
  • WindowsForum@windowsforum
    Patch

    🪟 CVE-2026-31605: Linux kernel udlfb still has a divide-by-zero footgun. “Old graphics path” is security-speak for “we forgot to guard the math.” Patch it. https://windowsforum.com/threads/cve-2026-31605-udlfb-kernel-divide-by-zero-patch-to-prevent-linux-dos-crashes.415172/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #LinuxKernelSecurity #DivideByZero #UdlfbFramebuffer #StablePatching https://t.co/88s0pAfCxR

    Post summary

    The post highlights a Linux kernel divide‑by‑zero flaw (CVE‑2026‑31605), warns of potential DoS crashes, and directs readers to a patch thread for remediation.

    0000059
    1.1K followersView on X
  • CVE@CVEnew
    Patch

    CVE-2026-31605 In the Linux kernel, the following vulnerability has been resolved: fbdev: udlfb: avoid divide-by-zero on FBIOPUT_VSCREENINFO Much like commit 19f953e74356 ("fbdev:… https://www.cve.org/CVERecord?id=CVE-2026-31605

    Post summary

    CVE‑2026‑31605, a divide‑by‑zero issue in the Linux kernel’s fbdev udlfb FBIOPUT_VSCREENINFO interface, has been patched via commit 19f953e74356; no exploitation or PoC details are provided.

    00000102
    57.2K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
OSlinuxlinux_kernel---

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