{"id":"CVE-2026-80582","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-80582","summary":"drm/shmem_helper: Check VMA boundaries for PMD mappings","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/shmem_helper: Check VMA boundaries for PMD mappings\n\nIn the ->huge_fault handler do not install a PMD huge page\nmapping if the huge page exceeds the boundaries of the VMA.\n\nAll other ->huge_fault handlers have similar checks and the\nresulting mapping will trigger a VM_BUG_ON_VMA() if it ever\nreaches copy_pmd_range().","published":"2026-08-26T14:37:39.113Z","modified":"2026-08-28T03:46:21.741002405Z","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"7.1.10"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/12803e89a1e593fd1e784dfe7453f5e392ccaff2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/617bbd08714857c1613d7c550d43a9092ec0fb97"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80582.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80582"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-28T03:46:21.741002405Z"}}