CVE-2024-46686 (GCVE-0-2024-46686)

Vulnerability from cvelistv5 – Published: 2024-09-13 05:29 – Updated: 2026-05-23 15:53
VLAI
Title
smb/client: avoid dereferencing rdata=NULL in smb2_new_read_req()
Summary
In the Linux kernel, the following vulnerability has been resolved: smb/client: avoid dereferencing rdata=NULL in smb2_new_read_req() This happens when called from SMB2_read() while using rdma and reaching the rdma_readwrite_threshold.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-29 15:08 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7056 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: edf38e9f4269591d26b3783c0b348c9345580c3c , < 6df57c63c200cd05e085c3b695128260e21959b7 (git)
Affected: a6559cc1d35d3eeafb0296aca347b2f745a28a74 , < a01859dd6aebf826576513850a3b05992809e9d2 (git)
Affected: a6559cc1d35d3eeafb0296aca347b2f745a28a74 , < b902fb78ab21299e4dd1775e7e8d251d5c0735bc (git)
Affected: a6559cc1d35d3eeafb0296aca347b2f745a28a74 , < c724b2ab6a46435b4e7d58ad2fbbdb7a318823cf (git)
Affected: 74ab77137c99438626f4eb8134d8e26204bb5b64 (git)
Affected: 6.1.16 , < 6.1.108 (semver)
Affected: 6.2.3 , < 6.3 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.1.108 , ≤ 6.1.* (semver)
Unaffected: 6.6.49 , ≤ 6.6.* (semver)
Unaffected: 6.10.8 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website

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                  "versionType": "git"
                },
                {
                  "lessThan": "b902fb78ab21299e4dd1775e7e8d251d5c0735bc",
                  "status": "affected",
                  "version": "a6559cc1d35d3eeafb0296aca347b2f745a28a74",
                  "versionType": "git"
                },
                {
                  "lessThan": "c724b2ab6a46435b4e7d58ad2fbbdb7a318823cf",
                  "status": "affected",
                  "version": "a6559cc1d35d3eeafb0296aca347b2f745a28a74",
                  "versionType": "git"
                },
                {
                  "status": "affected",
                  "version": "74ab77137c99438626f4eb8134d8e26204bb5b64",
                  "versionType": "git"
                },
                {
                  "lessThan": "6.1.108",
                  "status": "affected",
                  "version": "6.1.16",
                  "versionType": "semver"
                },
                {
                  "lessThan": "6.3",
                  "status": "affected",
                  "version": "6.2.3",
                  "versionType": "semver"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "fs/smb/client/smb2pdu.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "6.3"
                },
                {
                  "lessThan": "6.3",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.108",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.49",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.10.*",
                  "status": "unaffected",
                  "version": "6.10.8",
                  "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": "6.1.108",
                      "versionStartIncluding": "6.1.16",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.49",
                      "versionStartIncluding": "6.3",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.10.8",
                      "versionStartIncluding": "6.3",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.11",
                      "versionStartIncluding": "6.3",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionStartIncluding": "6.2.3",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/client: avoid dereferencing rdata=NULL in smb2_new_read_req()\n\nThis happens when called from SMB2_read() while using rdma\nand reaching the rdma_readwrite_threshold."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-23T15:53:23.833Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/6df57c63c200cd05e085c3b695128260e21959b7"
            },
            {
              "url": "https://git.kernel.org/stable/c/a01859dd6aebf826576513850a3b05992809e9d2"
            },
            {
              "url": "https://git.kernel.org/stable/c/b902fb78ab21299e4dd1775e7e8d251d5c0735bc"
            },
            {
              "url": "https://git.kernel.org/stable/c/c724b2ab6a46435b4e7d58ad2fbbdb7a318823cf"
            }
          ],
          "title": "smb/client: avoid dereferencing rdata=NULL in smb2_new_read_req()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-46686",
        "datePublished": "2024-09-13T05:29:17.821Z",
        "dateReserved": "2024-09-11T15:12:18.248Z",
        "dateUpdated": "2026-05-23T15:53:23.833Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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