{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "8d03ecfe471802d6afe97da97722b6924533aa82"
            },
            {
              "fixed": "73bec442f913855907b63225306dd162c18e5c71"
            },
            {
              "fixed": "6877de2c75f0dd342099a1357856e6c8d474abc3"
            },
            {
              "fixed": "54361e4924c2c52a501b74ef10217c32f45fccfa"
            },
            {
              "fixed": "3dc61af2998cfc7312d6e59bbdcd5eed074483f2"
            },
            {
              "fixed": "729d576df89c7e4341e58c452f8890620a610ac2"
            },
            {
              "fixed": "b12a25fb2b9d5dac80e419d695450cc17a51fdfd"
            },
            {
              "fixed": "1a2668682e998039a027796b236319b380078a6a"
            },
            {
              "fixed": "980db94e3eeefdd8a1c46f86412c33a7f7806f51"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.9.0"
            },
            {
              "fixed": "5.10.273"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.224"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.191"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.160"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.113"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.57"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99058.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nworkqueue: Fix NULL current_pwq deref in chained work check\n\ncurrent_wq_worker() only tells us that %current is a kworker. It does\nnot guarantee that the worker is currently executing a work item, as\nworker-\u003ecurrent_pwq is populated only while process_one_work() is running\nthe work function.\n\nis_chained_work() can be reached while queueing on a draining or\ndestroying workqueue. If a kworker outside work-item execution reaches\nthat path, current_wq_worker() returns a worker but worker-\u003ecurrent_pwq is\nNULL, and the chained-work test can fault before it emits the intended\nwarning.\n\nGuard the chained-work test with worker-\u003ecurrent_pwq. A kworker without\ncurrent_pwq is not executing work on the target workqueue, so the helper\nshould return false and let the draining/destroying warning fire.",
  "id": "CVE-2026-99058",
  "modified": "2026-11-01T02:30:35.312671082Z",
  "published": "2026-10-23T12:22:45.920Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1a2668682e998039a027796b236319b380078a6a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3dc61af2998cfc7312d6e59bbdcd5eed074483f2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/54361e4924c2c52a501b74ef10217c32f45fccfa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6877de2c75f0dd342099a1357856e6c8d474abc3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/729d576df89c7e4341e58c452f8890620a610ac2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/73bec442f913855907b63225306dd162c18e5c71"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/980db94e3eeefdd8a1c46f86412c33a7f7806f51"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b12a25fb2b9d5dac80e419d695450cc17a51fdfd"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99058.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-99058"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.2",
  "summary": "workqueue: Fix NULL current_pwq deref in chained work check"
}