{
  "containers": {
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      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-46736",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-29T14:52:47.842995Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-29T14:53:02.091Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/smb2inode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b27ea9c96efd2c252a981fb00d0f001b86c90f3e",
              "status": "affected",
              "version": "1e60bc0e954389af82f1d9a85f13a63f6572350f",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "71f15c90e785d1de4bcd65a279e7256684c25c0d",
              "versionType": "git"
            },
            {
              "lessThan": "3523a3df03c6f04f7ea9c2e7050102657e331a4f",
              "status": "affected",
              "version": "71f15c90e785d1de4bcd65a279e7256684c25c0d",
              "versionType": "git"
            },
            {
              "lessThan": "6.6.51",
              "status": "affected",
              "version": "6.6.32",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/smb2inode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.9"
            },
            {
              "lessThan": "6.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.51",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.11",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.51",
                  "versionStartIncluding": "6.6.32",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.10.10",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix double put of @cfile in smb2_rename_path()\n\nIf smb2_set_path_attr() is called with a valid @cfile and returned\n-EINVAL, we need to call cifs_get_writable_path() again as the\nreference of @cfile was already dropped by previous smb2_compound_op()\ncall."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The vulnerable retry path in smb2_rename_path() is entered only when compound_send_recv() maps the server\u0027s STATUS_INVALID_PARAMETER response to -EINVAL, so a malicious/compromised SMB server or a network MITM (the Linux cifs client does not mandate signing/encryption) fully controls whether the double put occurs. This is remote-peer data driving kernel memory management on the client.\nAC:L - The server simply answers a compounded CREATE+SET_INFO(rename) with STATUS_INVALID_PARAMETER \u2014 deterministic, no race to win, no memory-layout guessing, and leases are enabled by default. The same condition even arises reliably against benign servers for hardlinked files, which is precisely the case the introducing commit describes.\nPR:N - The attacker is the remote SMB endpoint and needs no account, credentials, or privileges on the victim client; the client initiates and authenticates the connection itself and then processes the poisoned status code during a routine rename of an open file.\nUI:N - No human action is required \u2014 renames of files held open on an SMB mount are ordinary automated activity (backup/sync daemons, log rotation, package and build tooling), so the attacker-controlled server merely waits for one and replies with STATUS_INVALID_PARAMETER.\nS:U - The corruption is confined to the client kernel\u0027s own heap and security authority; no VM, hypervisor, or IOMMU boundary is crossed.\nC:H - The premature free leaves file-\u003eprivate_data dangling and smb2_compound_op() kstrdup()s cfile-\u003esymlink_target out of freed memory into data returned to userspace, and a reclaimed cifsFileInfo yields a general arbitrary kernel-heap read primitive.\nI:H - The freed cifsFileInfo contains three list_heads whose later list_del gives an arbitrary write, plus four work_struct/delayed_work members with func pointers that can be queued after slab reclaim for control-flow hijack, making this a full write/code-execution primitive.\nA:H - The refcount underflow frees the handle while the fd remains open, so the next read/write or close on that fd hits freed memory, causing list corruption, a double free, and a kernel oops/panic."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:38:12.776Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b27ea9c96efd2c252a981fb00d0f001b86c90f3e"
        },
        {
          "url": "https://git.kernel.org/stable/c/1a46c7f6546b73cbf36f5a618a1a6bbb45391eb3"
        },
        {
          "url": "https://git.kernel.org/stable/c/3523a3df03c6f04f7ea9c2e7050102657e331a4f"
        }
      ],
      "title": "smb: client: fix double put of @cfile in smb2_rename_path()",
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        "engine": "bippy-1.2.0"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-46736",
    "datePublished": "2024-09-18T07:11:58.499Z",
    "dateReserved": "2024-09-11T15:12:18.257Z",
    "dateUpdated": "2026-08-05T11:38:12.776Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}