ethtool: cmis_cdb: use correct rpl size in ethtool_cmis_module_poll()

{
  "id": "de3ab1fd31183c48054e89b8a3208816985b70c81b535fb72b8ba880be63e5d0",
  "url": "https://osv.dev/vulnerability/CVE-2025-37791",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ethtool: cmis_cdb: use correct rpl size in ethtool_cmis_module_poll()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ethtool: cmis_cdb: use correct rpl size in ethtool_cmis_module_poll() rpl is passed as a pointer to ethtool_cmis_module_poll(), so the correct size of rpl is sizeof(*rpl) which should be just 1 byte. Using the pointer size instead can cause stack corruption: Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ethtool_cmis_wait_for_cond+0xf4/0x100 CPU: 72 UID: 0 PID: 4440 Comm: kworker/72:2 Kdump: loaded Tainted: G OE 6.11.0 #24 Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE Hardware name: Dell Inc. PowerEdge R760/04GWWM, BIOS 1.6.6 09/20/2023 Workqueue: events module_flash_fw_work Call Trace: panic+0x339/0x360 ? ethtool_cmis_wait_for_cond+0xf4/0x100 ? __pfx_status_success+0x10/0x10 ? __pfx_status_fail+0x10/0x10 __stack_chk_fail+0x10/0x10 ethtool_cmis_wait_for_cond+0xf4/0x100 ethtool_cmis_cdb_execute_cmd+0x1fc/0x330 ? __pfx_status_fail+0x10/0x10 cmis_cdb_module_features_get+0x6d/0xd0 ethtool_cmis_cdb_init+0x8a/0xd0 ethtool_cmis_fw_update+0x46/0x1d0 module_flash_fw_work+0x17/0xa0 process_one_work+0x179/0x390 worker_thread+0x239/0x340 ? __pfx_worker_thread+0x10/0x10 kthread+0xcc/0x100 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2d/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30",
    "evidence": "osv:CVE-2025-37791",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.25",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.14.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-37791",
      "aliases": [
        "CVE-2025-37791"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "a39c84d796254e6b1662ca0c46dbc313379e9291"
                },
                {
                  "fixed": "61765e1b417a23371c3735e3cddf4ad9354ed2e9"
                },
                {
                  "fixed": "7eb0a0072f966bb0b01d8b7d529d9743a7187bd1"
                },
                {
                  "fixed": "f3fdd4fba16c74697d8bc730b82fb7c1eff7fab3"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37791.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.11.0"
                },
                {
                  "fixed": "6.12.25"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.14.4"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37791.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:32.415633556Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/61765e1b417a23371c3735e3cddf4ad9354ed2e9",
        "https://git.kernel.org/stable/c/7eb0a0072f966bb0b01d8b7d529d9743a7187bd1",
        "https://git.kernel.org/stable/c/f3fdd4fba16c74697d8bc730b82fb7c1eff7fab3",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37791.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-37791",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37791.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-37791",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 499367,
  "published_at": "2025-05-01T13:07:24.062+00:00"
}