{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/sunrpc/xprtrdma/rpc_rdma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7cf332b3d82d73ffceedca6b4a120be074172021",
              "status": "affected",
              "version": "d01d6670c169316115b26dfb3585a73dfe40b563",
              "versionType": "git"
            },
            {
              "lessThan": "41634242140173eabbf54f899f9c70b5c685e786",
              "status": "affected",
              "version": "d1b159356a3584943192712392fcb2439aafb8c1",
              "versionType": "git"
            },
            {
              "lessThan": "8be1bb378def94a5cb8f7527a191e476407118ec",
              "status": "affected",
              "version": "17da9e0caa8615f6fc3b4022eadbd78a9aea1a2a",
              "versionType": "git"
            },
            {
              "lessThan": "469b22376ee73369711ecf2761bd122ef4195963",
              "status": "affected",
              "version": "e7ae0883c8c89b901226de43862184bf37054338",
              "versionType": "git"
            },
            {
              "lessThan": "33db78b1b24fc6a464ae08aa4d2538c5f883eb5e",
              "status": "affected",
              "version": "704f3f640f72db4d44ec5ce3db8d4e150c974bc7",
              "versionType": "git"
            },
            {
              "lessThan": "c3a628aab2dc8f5fd7bff86ceaeae64de590e60a",
              "status": "affected",
              "version": "704f3f640f72db4d44ec5ce3db8d4e150c974bc7",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/sunrpc/xprtrdma/rpc_rdma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.1"
            },
            {
              "lessThan": "7.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "7.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "7.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxprtrdma: Sanitize the reply credit grant after parsing\n\nThe out_norqst exit in rpcrdma_reply_handler() branches away before\nthe credit clamp, so a reply that matches no pending request reaches\nout_post carrying the raw credit value parsed from the wire.\nrpcrdma_post_recvs() does not bound its @needed argument: the refill\nloop allocates and chains Receive WRs until the count is satisfied or\nallocation fails. A peer that sends a well-formed reply carrying an\nunknown XID and an inflated credit grant therefore drives rep\nallocation and Receive posting past re_max_requests on every such\nreply.\n\nMove the clamp to immediately after the credit field is parsed,\nahead of the first branch that can reach out_post, so every later\nconsumer sees a sanitized value. The cwnd update stays on the\nmatched-request path."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The flaw is in the NFS-over-RDMA client receive path: rpcrdma_wc_receive() delivers remote RDMA reply completions to rpcrdma_reply_handler(), so a malicious or compromised NFS/RDMA server can send crafted replies over InfiniBand/RoCE/iWARP without local access.\nAC:L - On an established RPC/RDMA session the peer fully controls inbound replies and can reliably send well-formed headers with an unknown XID and an inflated credit grant on every message, deterministically reaching out_norqst and out_post without races or special victim state.\nPR:N - Exploitation requires only network reachability as the connected RDMA/RPC peer; the attacker does not need local accounts, mount privileges, or namespaced capabilities on the victim NFS client to deliver malicious reply traffic.\nUI:N - Once an NFS-over-RDMA mount and transport session exist, the attacker can flood spurious replies during normal client-server communication without any additional victim or administrator action at exploit time.\nS:U - Impact is confined to excessive kernel memory allocation and denial of service within the NFS client\u0027s SUNRPC/xprtrdma transport; it does not cross VM, container, or IOMMU security boundaries.\nC:N - The bug is unbounded receive-buffer allocation driven by an unsanitized wire credit field, not an out-of-bounds read, use-after-free, or other memory disclosure primitive that exposes kernel data to the attacker.\nI:N - Inflated credits only cause rpcrdma_post_recvs() to allocate and post extra rpcrdma_rep objects; there is no demonstrated memory corruption, arbitrary write, or control-flow hijack primitive.\nA:H - Each spurious reply can drive rpcrdma_rep_create() far past re_max_requests until allocation fails, enabling repeated remote kernel memory exhaustion, OOM conditions, and loss of NFS-over-RDMA service on the client."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:44:31.793Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7cf332b3d82d73ffceedca6b4a120be074172021"
        },
        {
          "url": "https://git.kernel.org/stable/c/41634242140173eabbf54f899f9c70b5c685e786"
        },
        {
          "url": "https://git.kernel.org/stable/c/8be1bb378def94a5cb8f7527a191e476407118ec"
        },
        {
          "url": "https://git.kernel.org/stable/c/469b22376ee73369711ecf2761bd122ef4195963"
        },
        {
          "url": "https://git.kernel.org/stable/c/33db78b1b24fc6a464ae08aa4d2538c5f883eb5e"
        },
        {
          "url": "https://git.kernel.org/stable/c/c3a628aab2dc8f5fd7bff86ceaeae64de590e60a"
        }
      ],
      "title": "xprtrdma: Sanitize the reply credit grant after parsing",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72465",
    "datePublished": "2026-08-15T05:57:08.767Z",
    "dateReserved": "2026-08-09T03:40:39.933Z",
    "dateUpdated": "2026-08-17T05:44:31.793Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}