{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "8700e3e7c4857d28ebaa824509934556da0b3e76"
            },
            {
              "fixed": "69d3ccf6543f24c452a020c8028ca6f46cb1e8db"
            },
            {
              "fixed": "750bba6ce9bb0b11d6a166031c9728ae3f21765e"
            },
            {
              "fixed": "c067aa7b231e91a18a1b3666201ab14dfb00347a"
            },
            {
              "fixed": "13cb7160e5b791f5e3ecf9311cf32849fe7e9b62"
            },
            {
              "fixed": "5ec111ddc1f727c1e4580aea459842ae5a8359a5"
            },
            {
              "fixed": "126c757e4cd46f866ddc283143b58eb4d9bf52cd"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.8.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92525.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rxe: Validate num_sge/cur_sge before indexing wqe-\u003edma.sge[]\n\nFor a user QP, qp-\u003esq.queue is a ring the application writes directly,\nso rxe_post_send() takes the is_user branch and only schedules send_task\nwithout validating the WQE. rxe_requester() consumes it in place via\nreq_next_wqe() and calls copy_data(), which indexes\n\u0026wqe-\u003edma.sge[cur_sge] with the attacker-controlled num_sge/cur_sge.\nOnly the kernel path bounds num_sge (validate_send_wr()); the user WQE\nis never checked, so a local unprivileged user can post a WQE with an\nout-of-range cur_sge or oversized num_sge and force an out-of-bounds\nread of the per-WQE sge array in copy_data() (vmalloc OOB read, local\nDoS).\n\nBound num_sge to qp-\u003esq.max_sge in rxe_requester() before use, the way\nget_srq_wqe() already guards SRQ entries, and bound cur_sge only when\nthe WQE carries payload (dma.resid): copy_data() returns early on a\nzero-length copy before touching dma-\u003esge[], so a zero-payload WQE --\nthe only kind a max_sge == 0 QP can post -- stays valid.\n\nReproduced under KASAN; the vmalloc-out-of-bounds in copy_data() is gone.",
  "id": "CVE-2026-92525",
  "modified": "2026-09-20T11:30:52.646692040Z",
  "published": "2026-09-17T16:10:30.789Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/126c757e4cd46f866ddc283143b58eb4d9bf52cd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/13cb7160e5b791f5e3ecf9311cf32849fe7e9b62"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5ec111ddc1f727c1e4580aea459842ae5a8359a5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/69d3ccf6543f24c452a020c8028ca6f46cb1e8db"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/750bba6ce9bb0b11d6a166031c9728ae3f21765e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c067aa7b231e91a18a1b3666201ab14dfb00347a"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92525.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92525"
    },
    {
      "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:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "RDMA/rxe: Validate num_sge/cur_sge before indexing wqe-\u003edma.sge[]"
}