SEPTEMBER 18, 2026
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Case File

CVE-2026-80582

HIGH · CVSS 7.8 EPSS 0.11%

Source: NVD + CISA KEV + EPSS · Published 2026-08-26 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

The vulnerability in the Linux kernel affects the handling of huge page mappings within the Direct Rendering Manager (DRM) subsystem, specifically in the shmem_helper component. If exploited, this flaw could lead to improper memory mapping, potentially resulting in system instability or crashes. Linux system administrators and developers utilizing the affected kernel versions should prioritize applying the relevant patches to mitigate any associated risks.

CVE
CVE-2026-80582
Severity
HIGH
CVSS
7.8
EPSS
0.11%
Linux

Original 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().