{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "dfab99df147b0d364f0c199f832ff2aedfb2265a"
            },
            {
              "fixed": "6424b9cde9edc7f2098115bbfd1ee3d84a958380"
            },
            {
              "fixed": "83608e303b95d07afba1c15da0b5d9e513c2f15a"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90217.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Compare iterator types during state pruning\n\nAn iterator stack slot can be MEM_RCU or PTR_UNTRUSTED. These states\nmust not be equal, or the verifier can prune an unsafe path.\n\nCompare the pointer type for STACK_ITER slots.",
  "id": "CVE-2026-90217",
  "modified": "2026-09-19T03:30:55.450777178Z",
  "published": "2026-09-17T16:07:29.409Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6424b9cde9edc7f2098115bbfd1ee3d84a958380"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/83608e303b95d07afba1c15da0b5d9e513c2f15a"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90217.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90217"
    },
    {
      "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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "bpf: Compare iterator types during state pruning"
}