{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f470378c7562a2818b45ed11c98973f2b89eedd3"
            },
            {
              "fixed": "3d429cb1278e995e22995ef117fa96d223a67e93"
            },
            {
              "fixed": "6233715b4b714068d6c831d214a4e8792109875a"
            },
            {
              "fixed": "e4414b01c1cd9887bbde92f946c1ba94e40d6d64"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.8.0"
            },
            {
              "fixed": "6.12.50"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.16.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39990.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Check the helper function is valid in get_helper_proto\n\nkernel test robot reported verifier bug [1] where the helper func\npointer could be NULL due to disabled config option.\n\nAs Alexei suggested we could check on that in get_helper_proto\ndirectly. Marking tail_call helper func with BPF_PTR_POISON,\nbecause it is unused by design.\n\n  [1] https://lore.kernel.org/oe-lkp/202507160818.68358831-lkp@intel.com",
  "id": "CVE-2025-39990",
  "modified": "2026-04-01T23:09:11.317218170Z",
  "published": "2025-10-15T07:56:07.295Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d429cb1278e995e22995ef117fa96d223a67e93"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6233715b4b714068d6c831d214a4e8792109875a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e4414b01c1cd9887bbde92f946c1ba94e40d6d64"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39990.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39990"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.3",
  "summary": "bpf: Check the helper function is valid in get_helper_proto"
}