{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f2451def095c1743adcfcb0cb5dadc86034e162a"
            },
            {
              "fixed": "902120be4f44947df6311002addc7faf69bdbff1"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "a1f93804449d13f97dabd4b996817de4bf1ed67a"
            },
            {
              "fixed": "a6d57084372161f86660bc4607784420e00efe2c"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "58c9b016e12855286370dfb704c08498edbc857a"
            },
            {
              "fixed": "a6566cd33f6f967a7651ebf2ce0dd31572e319cf"
            },
            {
              "fixed": "5b1173b165421561db29f30afc7e97d940a398a9"
            },
            {
              "fixed": "7e8083f5eeedab0f460063b9c2c14c9a4e71a427"
            },
            {
              "fixed": "ae0bb9c1fb7c2594519aeeb096cf2c3b7837b322"
            },
            {
              "fixed": "07712db80857d5d09ae08f3df85a708ecfc3b61f"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.4.0"
            },
            {
              "fixed": "6.6.136"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.83"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.24"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.14"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43074.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\neventpoll: defer struct eventpoll free to RCU grace period\n\nIn certain situations, ep_free() in eventpoll.c will kfree the epi-\u003eep\neventpoll struct while it still being used by another concurrent thread.\nDefer the kfree() to an RCU callback to prevent UAF.",
  "id": "CVE-2026-43074",
  "modified": "2026-07-08T05:37:52.141421156Z",
  "published": "2026-05-06T07:21:58.210Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/07712db80857d5d09ae08f3df85a708ecfc3b61f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5b1173b165421561db29f30afc7e97d940a398a9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7e8083f5eeedab0f460063b9c2c14c9a4e71a427"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/902120be4f44947df6311002addc7faf69bdbff1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a6566cd33f6f967a7651ebf2ce0dd31572e319cf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a6d57084372161f86660bc4607784420e00efe2c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ae0bb9c1fb7c2594519aeeb096cf2c3b7837b322"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43074.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43074"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "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": "eventpoll: defer struct eventpoll free to RCU grace period"
}