VulnSocial

CVE-2026-80579Disclosure

LOWCVSS 7.8 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

In the Linux kernel, the following vulnerability has been resolved: fbdev: clear fb_info->mode before deleting a videomode fb_set_var() can delete a mode from info->modelist when userspace passes FB_ACTIVATE_INV_MODE through FBIOPUT_VSCREENINFO. The code checks that the mode being deleted is not the current info->var and that fbcon is not using it, but it does not check fb_info->mode. fb_info->mode may still point into the modelist entry being deleted. If the entry is freed, later mode sysfs reads through show_mode() can dereference a stale pointer. Clear fb_info->mode before calling fb_delete_videomode() when it matches the mode being removed.

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0.0/ 10 priority

Sources & remediation

Other references

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 3 signals
  • Disclosure: 2 classified signals
  • General: 1 classified signal
  • Peaked at 2 mentions on most recent observed day (2026-08-27)
  • 3 total mentions across 2 days

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-08-26: 1Mentions · 2026-08-27: 2Technical Details · 2026-08-26: 1Technical Details · 2026-08-27: 208-2608-27
Signal classification2 categories
Disclosure
266.7%
General
133.3%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-08-261
Disclosure1
2026-08-272
Disclosure1General1
Full discourse3 posts
  • Infoflowcloud@infoflowcloud
    General

    🚨*CVE* CVE-2026-80579 In the Linux kernel, the following vulnerability has been resolved: fbdev: clear fb_info->mode before deleting a videomode fb_set_var() can delete a mode from info-… https://www.cve.org/CVERecord?id=CVE-2026-80579 ----- Traducción: CVE-2026-80579 En … https://infoflow.cloud`

    Post summary

    The post announces that CVE‑2026‑80579, a Linux kernel mode‑deletion issue, has been resolved, but it provides no PoC, exploit code, active exploitation evidence, or patch details.

    0000031
    102 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-80579 In the Linux kernel, the following vulnerability has been resolved: fbdev: clear fb_info->mode before deleting a videomode fb_set_var() can delete a mode from info-… https://www.cve.org/CVERecord?id=CVE-2026-80579

    Post summary

    The CVE-2026-80579 vulnerability in the Linux kernel’s fbdev component has been resolved, but the text provides only a brief technical description without detailing patches or exploit code.

    00000659
    58.0K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-80579 Linux Kernel fbdev Mode Deletion Dereferences Stale Pointer https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-80579

    Post summary

    The snippet references CVE-2026-80579 as a Linux kernel fbdev pointer dereference vulnerability, providing only basic technical description and a link to a vulnerability details page.

    00000107
    4.1K followersView on X

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