{
  "id": "CVE-2026-98354",
  "url": "https://spydr.io/cve/CVE-2026-98354",
  "published": "2026-10-06T09:18:28.883Z",
  "modified": "2026-10-06T09:18:28.883Z",
  "score": null,
  "severity": null,
  "cvss_version": null,
  "vector": null,
  "score_source": null,
  "epss": 0.00172,
  "epss_percentile": 0.05935,
  "exploited": false,
  "kev": null,
  "ssvc_exploitation": null,
  "vendors": [
    "Linux"
  ],
  "products": [
    "Linux"
  ],
  "cwes": [],
  "description": "In the Linux kernel, the following vulnerability has been resolved: RDMA/mad: Fix receive buffer leak when PKey enforcement fails ib_mad_complete_recv() initializes mad_recv_wc->rmpp_list and then runs ib_mad_enforce_security() before linking recv_buf onto that list. On failure it calls ib_free_recv_mad(), which only walks rmpp_list and frees the ib_mad_private of every buffer found there. As the list is still empty at that point, nothing is freed at all. The caller cannot clean up either: ib_mad_recv_done() sets recv to NULL right after ib_mad_complete_recv() returns, assuming the MAD layer took ownership of the buffer. Every MAD that fails the PKey check therefore leaks one ib_mad_private (about 300 bytes per IB port MAD, ~2K for OPA), and a remote node can trigger this repeatedly by sending MADs with a wrong PKey. Link recv_buf onto rmpp_list right after the list is initialized, so the error path has something to free.",
  "status": "Received",
  "score_type": null,
  "scores": {
    "cvss_v40": null,
    "cvss_v31": null,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/3476c28c9addfa253f505e6bd87f1f5598b961d0",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/39c4ea72a40503e102ae07e6776005f96ca078a6",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/4617c9a856188674dddb0ca66979746d07688579",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/5091e25ec503f7fc02723ca435226467b68caac7",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/752b30e9d339008e5ce7eed412e9446078916129",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/8e2036fb47a5b152d53eadbd35abf311bd34cc7f",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/bad289e42f512646a988f278f536d21547df73f1",
      "tags": []
    },
    {
      "url": "https://git.kernel.org/stable/c/c0d8df85db146d6275e226cb950023be69dd6c77",
      "tags": []
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98354",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}