{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "759455848df0b9ac3acabdbedcdc4a55af67935f"
            },
            {
              "fixed": "7b642bd3d39105eef4d5908970726c5fda291b53"
            },
            {
              "fixed": "ff7c73fca793bd5c29a15ba735b0886f62f3a840"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.1.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93074.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndax/fsdev: use __va(phys) for kaddr in direct_access\n\nUse __va(phys) instead of virt_addr + linear_offset for the kaddr\nreturn in __fsdev_dax_direct_access(). The previous code added a\ndevice-linear byte offset to virt_addr (which is __va of ranges[0]),\nbut for multi-range devices with physical gaps between ranges, this\nlinear arithmetic crosses the gap and produces a wrong kernel virtual\naddress. Using __va(phys) where phys comes from dax_pgoff_to_phys()\nis correct for any range layout because the direct map translates\neach physical address independently.\n\nThis leaves dev_dax-\u003evirt_addr write-only, so remove the field\n(suggested by Dave Jiang).",
  "id": "CVE-2026-93074",
  "modified": "2026-09-20T11:30:42.168638440Z",
  "published": "2026-09-17T16:10:57.051Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b642bd3d39105eef4d5908970726c5fda291b53"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff7c73fca793bd5c29a15ba735b0886f62f3a840"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93074.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93074"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "dax/fsdev: use __va(phys) for kaddr in direct_access"
}