{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "26f8ce06af6475b33b0bc60261e9f5027f9af58f"
            },
            {
              "fixed": "3ef0cfa77a3d526591be069850d186c255e3f0cc"
            },
            {
              "fixed": "c6c7eae5de798442987619434171ac886035d57c"
            },
            {
              "fixed": "0d21a1d6375a05274291e32c1ab7cd57dbb69513"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.14.0"
            },
            {
              "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-2026-74309.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler\n\nLook up the IRQ index in oct_hw-\u003eirqs instead of assuming\nirq - irqs[0]. This supports non-contiguous IRQ numbers and\navoids incorrect ring indexing when irqs[0] is not the base.",
  "id": "CVE-2026-74309",
  "modified": "2026-08-16T03:31:25.020320607Z",
  "published": "2026-08-15T05:58:09.366Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0d21a1d6375a05274291e32c1ab7cd57dbb69513"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ef0cfa77a3d526591be069850d186c255e3f0cc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c6c7eae5de798442987619434171ac886035d57c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74309.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74309"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler"
}