{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "99624bdff8670795b678eafa6509aaad3a5c0175"
            },
            {
              "fixed": "353f26c74660bcbd8d82cd76622748e14a5a5db3"
            },
            {
              "fixed": "63f443384979563f16f70420f4fa85bba31238ca"
            },
            {
              "fixed": "b82a225e57a334335a21462b75ee2223bc6efe6d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.15.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74420.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gpusvm: Reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges\n\nVMAs marked with VM_IO or VM_PFNMAP are not backed by struct page\nobjects, which GPUSVM requires in order to operate correctly. In\nparticular, get_pages() relies on hmm_range_fault() to resolve struct\npages for the target range.\n\nAttempting to create an SVM range on such VMAs results in repeated\nget_pages() failures and can lead to an infinite loop inside a driver’s\npage‑fault handler. Prevent this by rejecting ranges on VM_IO or\nVM_PFNMAP VMAs and returning -EIO.",
  "id": "CVE-2026-74420",
  "modified": "2026-08-16T03:31:12.297267665Z",
  "published": "2026-08-15T05:59:24.704Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/353f26c74660bcbd8d82cd76622748e14a5a5db3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/63f443384979563f16f70420f4fa85bba31238ca"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b82a225e57a334335a21462b75ee2223bc6efe6d"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74420.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74420"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "drm/gpusvm: Reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges"
}