{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "704f960dbee2f1634f4b4e16f208cb16eaf41c1e"
            },
            {
              "fixed": "004f7232e49730448f91665e76bdd7dff8e0c638"
            },
            {
              "fixed": "f0ece16ffca7384787b692431961ce202907acf5"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "f3f41f444b321ec393edbc251e024fd62658ce55"
            },
            {
              "last_affected": "305c4e4d80aca2c2d9cf2ebdea56e2eca6d3a6aa"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.6.18"
            },
            {
              "fixed": "6.7"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.7.6"
            },
            {
              "fixed": "6.8"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.8.0"
            },
            {
              "fixed": "7.1.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74605.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\neventfs: Use children field for rcu head and add memory barriers\n\nWhen an eventfs inode is freed, it sets ei-\u003eis_freed and then uses its\nei-\u003elist to add it to the srcu link list as the list field is a union with\nthe rcu list head. As the ei-\u003elist is used to iterate over an SRCU\nprotected list without taking the eventfs_mutex, there's nothing stopping\nthe iteration over that list to see the ei-\u003ercu instead of the ei-\u003elist\nand it will read a corrupt target.\n\nTo fix this, change the union of the rcu list head with the children list.\nOn freeing the eventfs inode, set the is_free and execute a smp_wmb()\nbefore adding the eventfs inode to the SRCU list.\n\nOn iteration of the ei-\u003echildren list, at the start, execute a smp_rmb()\nand then read the is_freed of the ei to see if the children list is still\nvalid. If is_freed is set, then the ei_child read is not valid and the\nloop should exit immediately.",
  "id": "CVE-2026-74605",
  "modified": "2026-08-27T11:30:59.147929469Z",
  "published": "2026-08-22T15:31:53.063Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/004f7232e49730448f91665e76bdd7dff8e0c638"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f0ece16ffca7384787b692431961ce202907acf5"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74605.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74605"
    },
    {
      "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": "eventfs: Use children field for rcu head and add memory barriers"
}