{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/sched/ext/ext.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c480961a1e790b46ffd8c20c4b6754d65ec6572d",
              "status": "affected",
              "version": "84b1a0ea0b7c23dec240783a592e480780efe459",
              "versionType": "git"
            },
            {
              "lessThan": "8d8dd8ae89eaa78b37fc85528e926029f5facbdf",
              "status": "affected",
              "version": "84b1a0ea0b7c23dec240783a592e480780efe459",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/sched/ext/ext.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.1"
            },
            {
              "lessThan": "7.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.4",
                  "versionStartIncluding": "7.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "7.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsched_ext: Don\u0027t BUG_ON a destroyed DSQ in process_deferred_reenq_users\n\nscx_bpf_dsq_reenq() queues a deferred reenq (dru) that runs from\nrun_deferred(), not ops.dispatch(). If the DSQ is destroyed before the dru\nruns, process_deferred_reenq_users() sees dsq-\u003eid == SCX_DSQ_INVALID and\nhits the BUG_ON. destroy_dsq() doesn\u0027t flush pending drus, so just skip.\n\ntj: Read dsq-\u003eid once with READ_ONCE(). Reading it separately in the INVALID\n    check and the BUG_ON would leave a window where destroy_dsq() can\n    invalidate the id between the two reads and still trigger the BUG_ON."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T08:48:07.582Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c480961a1e790b46ffd8c20c4b6754d65ec6572d"
        },
        {
          "url": "https://git.kernel.org/stable/c/8d8dd8ae89eaa78b37fc85528e926029f5facbdf"
        }
      ],
      "title": "sched_ext: Don\u0027t BUG_ON a destroyed DSQ in process_deferred_reenq_users",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89516",
    "datePublished": "2026-09-11T19:43:59.941Z",
    "dateReserved": "2026-09-11T19:38:34.717Z",
    "dateUpdated": "2026-10-19T08:48:07.582Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}