{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "6c24849f5515e4966d94fa5279bdff4acf2e9489"
            },
            {
              "fixed": "e422b32e6a57269ca8164c60674a78bee85cf5fb"
            },
            {
              "fixed": "e5965ae3f7c918151b87e5c925b7978afbeaf638"
            },
            {
              "fixed": "78d9daf5e13ad1448b7dfebac949936710ec7565"
            },
            {
              "fixed": "95220e1f18f6321008f021abc7d6f581f64bcb82"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "5ac05ce5684315d0e71194a63febaf33921c3268"
            },
            {
              "last_affected": "43d8cbfefa7c59bd3b5fe184535eca476d45304e"
            },
            {
              "last_affected": "d1b4262b78cc7638642833252ae92fc586854ffb"
            },
            {
              "last_affected": "74fac5bb0d375d6b8f5e7997925063c509089c9c"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.10.193"
            },
            {
              "fixed": "5.11"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.15.129"
            },
            {
              "fixed": "5.16"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.1.50"
            },
            {
              "fixed": "6.2"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.4.13"
            },
            {
              "fixed": "6.5"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.5.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93150.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncgroup/cpuset: Make nr_deadline_tasks an atomic_t\n\nThe nr_deadline_tasks variable in the cpuset structure was introduced by\ncommit 6c24849f5515 (\"sched/cpuset: Keep track of SCHED_DEADLINE task\nin cpusets\"). It is reported by sashiko [1] that nr_deadline_tasks\ncan currently be modified by inc_dl_tasks_cs() under rq-\u003elock and\nby cpuset_attach() under cpuset_mutex. So if both updates happen\nsimultaneously, the nr_deadline_tasks variable can be corrupted leading\nto incorrect operations down the road.\n\nFix that by changing its type to atomic_t so that nr_deadline_tasks\nare always atomically updated. This fix patch is a low hanging fruit.\nIt can handle some of the races between a concurrent sched_setscheduler()\nand cpuset_can_attach()/cpuset_attach() calls, but not all of them like\nthe other issue raised by sashiko [2]. This will be handled hopefully\nin a future follow up patch.\n\n[1] https://sashiko.dev/#/patchset/20260626181923.133658-1-longman%40redhat.com\n[2] https://sashiko.dev/#/patchset/20260630033344.352702-1-longman%40redhat.com",
  "id": "CVE-2026-93150",
  "modified": "2026-09-19T03:30:24.573700429Z",
  "published": "2026-09-17T16:11:46.799Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/78d9daf5e13ad1448b7dfebac949936710ec7565"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/95220e1f18f6321008f021abc7d6f581f64bcb82"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e422b32e6a57269ca8164c60674a78bee85cf5fb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e5965ae3f7c918151b87e5c925b7978afbeaf638"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93150.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93150"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "cgroup/cpuset: Make nr_deadline_tasks an atomic_t"
}