CVE-2026-80582General

LOWCVSS 7.8 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

In the Linux kernel, the following vulnerability has been resolved: drm/shmem_helper: Check VMA boundaries for PMD mappings In the ->huge_fault handler do not install a PMD huge page mapping if the huge page exceeds the boundaries of the VMA. All other ->huge_fault handlers have similar checks and the resulting mapping will trigger a VM_BUG_ON_VMA() if it ever reaches copy_pmd_range().

0.5/ 10 priority

Sources & remediation

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Threat summary

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

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 3 signals
  • General: 1 classified signal
  • Disclosure: 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: 2Patch / Workaround · 2026-08-27: 1Technical Details · 2026-08-26: 1Technical Details · 2026-08-27: 208-2608-27
Signal classification3 categories
General
133.3%
Disclosure
133.3%
Patch
133.3%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-08-261
General1
2026-08-272
Disclosure1Patch1
Full discourse3 posts
  • CVE@CVEnew
    Patch

    CVE-2026-80582 In the Linux kernel, the following vulnerability has been resolved: drm/shmem_helper: Check VMA boundaries for PMD mappings In the ->huge_fault handler do not insta… https://www.cve.org/CVERecord?id=CVE-2026-80582

    Post summary

    CVE-2026-80582, a Linux kernel issue in drm/shmem_helper, has been resolved with a patch; no PoC, exploit or active usage details are supplied.

    100101.0K
    58.0K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-80582 In the Linux kernel, the following vulnerability has been resolved: drm/shmem_helper: Check VMA boundaries for PMD mappings In the ->huge_fault handler do not insta… https://www.cve.org/CVERecord?id=CVE-2026-80582 ----- Traducción: CVE-2026-80582 En … https://infoflow.cloud`

    Post summary

    The post announces that CVE-2026-80582 in the Linux kernel has been resolved, offering a brief technical snippet but no PoC, exploit, or patch information.

    0000031
    102 followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    General

    CVE-2026-80582 Linux Kernel PMD Mapping Vulnerability in drm/shmem_helper https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-80582

    Post summary

    The entry references a Linux Kernel PMD mapping vulnerability in the drm/shmem_helper module but offers no further details on PoC, exploit, active usage, or remediation.

    00000106
    4.1K followersView on X

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