sunrpc: fix uninitialized xprt_create_args structure

{
  "id": "31a9d8ed7750659a1c8920f2b74732d8c8bacf3b6903eb76b747b3b62fa63550",
  "url": "https://osv.dev/vulnerability/CVE-2026-72150",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "sunrpc: fix uninitialized xprt_create_args structure",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix uninitialized xprt_create_args structure The xprt_create_args structure is allocated on the stack without initialization in rpc_sysfs_xprt_switch_add_xprt_store(). While some fields are manually populated, critical fields like srcaddr, bc_xps, and flags contain uninitialized stack garbage. This can lead to: 1. Kernel panic when xs_setup_xprt() dereferences garbage srcaddr 2. Information leak if srcaddr points to sensitive stack data 3. Unpredictable behavior if flags has random bits set The fix is to zero-initialize the structure to ensure all unused fields are NULL/0, preventing the transport setup code from acting on garbage data.",
    "evidence": "osv:CVE-2026-72150",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.40",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.1.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-72150",
      "aliases": [
        "CVE-2026-72150"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "df210d9b0951d714c1668c511ca5c8ff38cf6916"
                },
                {
                  "fixed": "933654508b2bc36e2c3c086c0365e2403fb2141f"
                },
                {
                  "fixed": "7d3ce3bd23c062a7c1c6d372d1b08e48b9e17cc3"
                },
                {
                  "fixed": "17d90b68c3a3d7d7e95b49e1fe9381a723f637a8"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72150.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.15.0"
                },
                {
                  "fixed": "6.18.40"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.1.5"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72150.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.001478391Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/17d90b68c3a3d7d7e95b49e1fe9381a723f637a8",
        "https://git.kernel.org/stable/c/7d3ce3bd23c062a7c1c6d372d1b08e48b9e17cc3",
        "https://git.kernel.org/stable/c/933654508b2bc36e2c3c086c0365e2403fb2141f",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72150.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-72150",
        "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/2026/72xxx/CVE-2026-72150.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-72150",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 518566,
  "published_at": "2026-08-15T05:53:21.44+00:00"
}