Riskcovery

CVE-2026-80582

drm/shmem_helper: Check VMA boundaries for PMD mappings

State
Published
Severity
7.8 High
Published
Aug 26, 2026
Updated
Aug 27, 2026
Reserved
Aug 26, 2026

Read the record on cve.org

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().

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • fc3bbf34e643faa8678aabdc3810c60109f3435a to before 12803e89a1e593fd1e784dfe7453f5e392ccaff2Affected
  • fc3bbf34e643faa8678aabdc3810c60109f3435a to before 617bbd08714857c1613d7c550d43a9092ec0fb97Affected
LinuxLinux
  • 7.0Affected
  • before 7.0Not affected
  • 7.1.10 through 7.1.*Not affected
  • 7.2 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.