{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"
            },
            {
              "fixed": "afed3cdc1cca133f804fcf57ff228974f424b23a"
            },
            {
              "fixed": "8a270b1258797f61b61da44f8bfd41a581b5c85b"
            },
            {
              "fixed": "d605d00085adc3fddf67de01dc2a44aebf1a3fb5"
            },
            {
              "fixed": "e5ffc638faf5dc7d9dc85c9a95e10bf97442e0c0"
            },
            {
              "fixed": "eb4cec29a78334d09bcfb41c0660cdd62ba05843"
            },
            {
              "fixed": "7776f9226e99eb49d97492b0b445027cfcb189da"
            },
            {
              "fixed": "8f06363446c5d043c9a7c008b250040e9de98cf9"
            },
            {
              "fixed": "87bd2ad568e15b90d5f7d4bcd70342d05dad649c"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.12"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.96"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.39"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64370.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nposix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path\n\nIn do_cpu_nanosleep(), posix_cpu_timer_create() takes a pid reference\nvia get_pid() and stores it in timer.it.cpu.pid. If the subsequent\nposix_cpu_timer_set() call fails, the function returns immediately\nwithout calling posix_cpu_timer_del() to release the pid reference,\ncausing a leak.\n\nFix it by calling posix_cpu_timer_del() before the unlock-and-return\non the error path, consistent with the other exit paths in the same\nfunction.",
  "id": "CVE-2026-64370",
  "modified": "2026-07-27T03:56:41.817848137Z",
  "published": "2026-07-25T08:50:23.257Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7776f9226e99eb49d97492b0b445027cfcb189da"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/87bd2ad568e15b90d5f7d4bcd70342d05dad649c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8a270b1258797f61b61da44f8bfd41a581b5c85b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8f06363446c5d043c9a7c008b250040e9de98cf9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/afed3cdc1cca133f804fcf57ff228974f424b23a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d605d00085adc3fddf67de01dc2a44aebf1a3fb5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e5ffc638faf5dc7d9dc85c9a95e10bf97442e0c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eb4cec29a78334d09bcfb41c0660cdd62ba05843"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64370.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64370"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path"
}