{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "168d9bf9c7f01df71e6404cfff66d9c2a8e968fb"
            },
            {
              "fixed": "e8e9cff6d80eeec28dec4cf7cc18662986945391"
            },
            {
              "fixed": "9bee7e476534f27e830658dad962d85da9edf6bf"
            },
            {
              "fixed": "4311fd6f429065a8ba208660360a895627a00cf3"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "489efc9ae36f164423f5fa7ace772a7ab8131cd8"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.8.9"
            },
            {
              "fixed": "6.9"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.9.0"
            },
            {
              "fixed": "6.18.44"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74538.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: lock sk in iso_connect_ind\n\nAccessing iso_pi(sk)-\u003econn requires lock_sock, which is not taken in the\n\"ev3\" part of iso_connect_ind.  It may also be NULL if socket has\ntransitioned away from the LISTEN/CONNECT states before locking.\n\nFix by adding lock/release. Recheck hcon is valid after lock acquire\nwhere needed.",
  "id": "CVE-2026-74538",
  "modified": "2026-08-18T03:31:03.295822814Z",
  "published": "2026-08-15T12:27:50.271Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4311fd6f429065a8ba208660360a895627a00cf3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9bee7e476534f27e830658dad962d85da9edf6bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e8e9cff6d80eeec28dec4cf7cc18662986945391"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74538.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74538"
    },
    {
      "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:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Bluetooth: ISO: lock sk in iso_connect_ind"
}