CVE-2026-80582drm/shmem_helper: Check VMA boundaries for PMD mappings
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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().
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 27, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from fc3bbf34e643faa8678aabdc3810c60109f3435a before 12803e89a1e593fd1e784dfe7453f5e392ccaff2; from fc3bbf34e643faa8678aabdc3810c60109f3435a before 617bbd08714857c1613d7c550d43a9092ec0fb97 | CNA record |
References
- https://git.kernel.org/stable/c/12803e89a1e593fd1e784dfe7453f5e392ccaff2
- https://git.kernel.org/stable/c/617bbd08714857c1613d7c550d43a9092ec0fb97
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.