CVE-2026-80582
High
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().
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux
PublishedAug 26, 2026
First seenAug 26, 2026
How to fix
Update
- Linux Linux12803e89a1e593fd1e784dfe7453f5e392ccaff2, 617bbd08714857c1613d7c550d43a9092ec0fb97 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | fc3bbf34e643faa8678aabdc3810c60109f3435a ≤ v < 12803e89a1e593fd1e784dfe7453f5e392ccaff2, fc3bbf34e643faa8678aabdc3810c60109f3435a ≤ v < 617bbd08714857c1613d7c550d43a9092ec0fb97, 7.0 | 12803e89a1e593fd1e784dfe7453f5e392ccaff2, 617bbd08714857c1613d7c550d43a9092ec0fb97 |
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