Vulnerability-Lookup

FKIE_CVE-2024-47749

Vulnerability from fkie_nvd - Published: 2024-10-21 13:15 - Updated: 2026-08-04 11:20

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: RDMA/cxgb4: Added NULL check for lookup_atid The lookup_atid() function can return NULL if the ATID is invalid or does not exist in the identifier table, which could lead to dereferencing a null pointer without a check in the `act_establish()` and `act_open_rpl()` functions. Add a NULL check to prevent null pointer dereferencing. Found by Linux Verification Center (linuxtesting.org) with SVACE.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0d50ae281a1712b9b2ca72830a96b8f11882358d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/39cb9f39913566ec5865581135f3e8123ad1aee1	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4e1fe68d695af367506ea3c794c5969630f21697
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/54aaa3ed40972511e423b604324b881425b9ff1e	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b11318dc8a1ec565300bb1a9073095af817cc508	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b12e25d91c7f97958341538c7dc63ee49d01548f
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b9c94c8ba5a713817cffd74c4bacc05187469624	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/dd598ac57dcae796cb58551074660c39b43fb155	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e766e6a92410ca269161de059fff0843b8ddd65f	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/cxgb4/cm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b12e25d91c7f97958341538c7dc63ee49d01548f",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            },
            {
              "lessThan": "4e1fe68d695af367506ea3c794c5969630f21697",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            },
            {
              "lessThan": "dd598ac57dcae796cb58551074660c39b43fb155",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            },
            {
              "lessThan": "b11318dc8a1ec565300bb1a9073095af817cc508",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            },
            {
              "lessThan": "39cb9f39913566ec5865581135f3e8123ad1aee1",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            },
            {
              "lessThan": "0d50ae281a1712b9b2ca72830a96b8f11882358d",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            },
            {
              "lessThan": "54aaa3ed40972511e423b604324b881425b9ff1e",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            },
            {
              "lessThan": "b9c94c8ba5a713817cffd74c4bacc05187469624",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            },
            {
              "lessThan": "e766e6a92410ca269161de059fff0843b8ddd65f",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/cxgb4/cm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.35"
            },
            {
              "lessThan": "2.6.35",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.323",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.285",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.227",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.168",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.113",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "48954B72-B77A-45CD-815C-F0B53A5FA5E1",
              "versionEndExcluding": "5.10.227",
              "versionStartIncluding": "2.6.35",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4D51C05D-455B-4D8D-89E7-A58E140B864C",
              "versionEndExcluding": "5.15.168",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D01BD22E-ACD1-4618-9D01-6116570BE1EE",
              "versionEndExcluding": "6.1.113",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D448821D-C085-4CAF-88FA-2DDE7BE21976",
              "versionEndExcluding": "6.6.54",
              "versionStartIncluding": "6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "CE94BB8D-B0AB-4563-9ED7-A12122B56EBE",
              "versionEndExcluding": "6.10.13",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "AB755D26-97F4-43B6-8604-CD076811E181",
              "versionEndExcluding": "6.11.2",
              "versionStartIncluding": "6.11",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/cxgb4: Added NULL check for lookup_atid\n\nThe lookup_atid() function can return NULL if the ATID is\ninvalid or does not exist in the identifier table, which\ncould lead to dereferencing a null pointer without a\ncheck in the `act_establish()` and `act_open_rpl()` functions.\nAdd a NULL check to prevent null pointer dereferencing.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/cxgb4: Se agreg\u00f3 una comprobaci\u00f3n NULL para lookup_atid La funci\u00f3n lookup_atid() puede devolver NULL si el ATID no es v\u00e1lido o no existe en la tabla de identificadores, lo que podr\u00eda provocar la desreferenciaci\u00f3n de un puntero nulo sin una comprobaci\u00f3n en las funciones `act_establish()` y `act_open_rpl()`. Agregue una comprobaci\u00f3n NULL para evitar la desreferenciaci\u00f3n de punteros nulos. Encontrado por Linux Verification Center (linuxtesting.org) con SVACE."
    }
  ],
  "id": "CVE-2024-47749",
  "lastModified": "2026-08-04T11:20:48.527",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-47749",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-10-21T12:58:09.975914Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-10-21T13:15:04.950",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/0d50ae281a1712b9b2ca72830a96b8f11882358d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/39cb9f39913566ec5865581135f3e8123ad1aee1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4e1fe68d695af367506ea3c794c5969630f21697"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/54aaa3ed40972511e423b604324b881425b9ff1e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b11318dc8a1ec565300bb1a9073095af817cc508"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b12e25d91c7f97958341538c7dc63ee49d01548f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b9c94c8ba5a713817cffd74c4bacc05187469624"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/dd598ac57dcae796cb58551074660c39b43fb155"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e766e6a92410ca269161de059fff0843b8ddd65f"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2024-47749 (GCVE-0-2024-47749)

Vulnerability from cvelistv5 – Published: 2024-10-21 12:14 – Updated: 2026-08-05 11:39

Title

RDMA/cxgb4: Added NULL check for lookup_atid

Summary

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-21 12:58 UTC

Assigner

Linux mitre root

References

11 references

URL	Tags
https://git.kernel.org/stable/c/b12e25d91c7f97958…
https://git.kernel.org/stable/c/4e1fe68d695af3675…
https://git.kernel.org/stable/c/dd598ac57dcae796c…
https://git.kernel.org/stable/c/b11318dc8a1ec5653…
https://git.kernel.org/stable/c/39cb9f39913566ec5…
https://git.kernel.org/stable/c/0d50ae281a1712b9b…
https://git.kernel.org/stable/c/54aaa3ed40972511e…
https://git.kernel.org/stable/c/b9c94c8ba5a713817…
https://git.kernel.org/stable/c/e766e6a92410ca269…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: cfdda9d764362ab77b11a410bb928400e6520d57 , < b12e25d91c7f97958341538c7dc63ee49d01548f (git) Affected: cfdda9d764362ab77b11a410bb928400e6520d57 , < 4e1fe68d695af367506ea3c794c5969630f21697 (git) Affected: cfdda9d764362ab77b11a410bb928400e6520d57 , < dd598ac57dcae796cb58551074660c39b43fb155 (git) Affected: cfdda9d764362ab77b11a410bb928400e6520d57 , < b11318dc8a1ec565300bb1a9073095af817cc508 (git) Affected: cfdda9d764362ab77b11a410bb928400e6520d57 , < 39cb9f39913566ec5865581135f3e8123ad1aee1 (git) Affected: cfdda9d764362ab77b11a410bb928400e6520d57 , < 0d50ae281a1712b9b2ca72830a96b8f11882358d (git) Affected: cfdda9d764362ab77b11a410bb928400e6520d57 , < 54aaa3ed40972511e423b604324b881425b9ff1e (git) Affected: cfdda9d764362ab77b11a410bb928400e6520d57 , < b9c94c8ba5a713817cffd74c4bacc05187469624 (git) Affected: cfdda9d764362ab77b11a410bb928400e6520d57 , < e766e6a92410ca269161de059fff0843b8ddd65f (git)
Linux	Linux	Affected: 2.6.35 Unaffected: 0 , < 2.6.35 (semver) Unaffected: 4.19.323 , ≤ 4.19.* (semver) Unaffected: 5.4.285 , ≤ 5.4.* (semver) Unaffected: 5.10.227 , ≤ 5.10.* (semver) Unaffected: 5.15.168 , ≤ 5.15.* (semver) Unaffected: 6.1.113 , ≤ 6.1.* (semver) Unaffected: 6.6.54 , ≤ 6.6.* (semver) Unaffected: 6.10.13 , ≤ 6.10.* (semver) Unaffected: 6.11.2 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-47749",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-21T12:58:09.975914Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-21T13:04:13.297Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T22:21:44.230Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/cxgb4/cm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b12e25d91c7f97958341538c7dc63ee49d01548f",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            },
            {
              "lessThan": "4e1fe68d695af367506ea3c794c5969630f21697",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            },
            {
              "lessThan": "dd598ac57dcae796cb58551074660c39b43fb155",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            },
            {
              "lessThan": "b11318dc8a1ec565300bb1a9073095af817cc508",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            },
            {
              "lessThan": "39cb9f39913566ec5865581135f3e8123ad1aee1",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            },
            {
              "lessThan": "0d50ae281a1712b9b2ca72830a96b8f11882358d",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            },
            {
              "lessThan": "54aaa3ed40972511e423b604324b881425b9ff1e",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            },
            {
              "lessThan": "b9c94c8ba5a713817cffd74c4bacc05187469624",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            },
            {
              "lessThan": "e766e6a92410ca269161de059fff0843b8ddd65f",
              "status": "affected",
              "version": "cfdda9d764362ab77b11a410bb928400e6520d57",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/cxgb4/cm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.35"
            },
            {
              "lessThan": "2.6.35",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.323",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.285",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.227",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.168",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.113",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.323",
                  "versionStartIncluding": "2.6.35",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.285",
                  "versionStartIncluding": "2.6.35",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.227",
                  "versionStartIncluding": "2.6.35",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.168",
                  "versionStartIncluding": "2.6.35",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.113",
                  "versionStartIncluding": "2.6.35",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.54",
                  "versionStartIncluding": "2.6.35",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.10.13",
                  "versionStartIncluding": "2.6.35",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11.2",
                  "versionStartIncluding": "2.6.35",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12",
                  "versionStartIncluding": "2.6.35",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/cxgb4: Added NULL check for lookup_atid\n\nThe lookup_atid() function can return NULL if the ATID is\ninvalid or does not exist in the identifier table, which\ncould lead to dereferencing a null pointer without a\ncheck in the `act_establish()` and `act_open_rpl()` functions.\nAdd a NULL check to prevent null pointer dereferencing.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
        }
      ],
      "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 vulnerable handlers process `CPL_ACT_ESTABLISH`/`CPL_ACT_OPEN_RPL` that the Chelsio TOE emits in direct response to a remote peer\u0027s TCP handshake behavior (SYN-ACK, RST, timeout, 4-tuple collision), so a remote iWARP peer or off-path RST injector controls which CPL arrives and when it races the driver\u0027s atid teardown. iWARP clients (NVMe-oF/RDMA, NFS/RDMA, iSER, SMB Direct) connect out across routed networks, making this remotely reachable.\nAC:L - The remote peer controls the timing of its handshake response and can stall until the ep timer fires (`process_timeout()` \u2192 `c4iw_ep_disconnect()` in the `CONNECTING` state) before completing or resetting, so it controls both sides of the race and can retry indefinitely at no cost. Atid-table exhaustion, which makes the freed slot read back as NULL, is likewise inducible by flooding concurrent connects.\nPR:N - `act_establish()` and `act_open_rpl()` run at TCP handshake completion/failure, long before MPA negotiation or any credential exchange, so the peer driving the condition is entirely unauthenticated. No privileges on the target are needed for the remote side of the attack.\nUI:N - No victim action is required \u2014 the connection attempts are made by already-running RDMA ULPs or reconnect loops, and the CPL processing happens asynchronously in the `iw_cxgb4` workqueue.\nS:U - The NULL dereference crashes the kernel that contains the flaw; no security authority boundary such as a VM or IOMMU domain is crossed.\nC:N - The dereference is of a NULL `struct c4iw_ep *` at small member offsets (`com.mutex`, `dst`, `com.local_addr`), all below `mmap_min_addr`, so it faults immediately with no attacker-mapped page and yields no read primitive or information disclosure.\nI:N - No memory is written through the NULL pointer before the fault, and the bug provides no write primitive or control-flow hijack \u2014 it is a pure crash.\nA:H - The dereference produces a kernel oops in workqueue context, which is a full panic on `panic_on_oops` systems; even absent that, the ordered `iw_cxgb4` workqueue is wedged, stalling all RDMA connection management for the adapter."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:39:57.111Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b12e25d91c7f97958341538c7dc63ee49d01548f"
        },
        {
          "url": "https://git.kernel.org/stable/c/4e1fe68d695af367506ea3c794c5969630f21697"
        },
        {
          "url": "https://git.kernel.org/stable/c/dd598ac57dcae796cb58551074660c39b43fb155"
        },
        {
          "url": "https://git.kernel.org/stable/c/b11318dc8a1ec565300bb1a9073095af817cc508"
        },
        {
          "url": "https://git.kernel.org/stable/c/39cb9f39913566ec5865581135f3e8123ad1aee1"
        },
        {
          "url": "https://git.kernel.org/stable/c/0d50ae281a1712b9b2ca72830a96b8f11882358d"
        },
        {
          "url": "https://git.kernel.org/stable/c/54aaa3ed40972511e423b604324b881425b9ff1e"
        },
        {
          "url": "https://git.kernel.org/stable/c/b9c94c8ba5a713817cffd74c4bacc05187469624"
        },
        {
          "url": "https://git.kernel.org/stable/c/e766e6a92410ca269161de059fff0843b8ddd65f"
        }
      ],
      "title": "RDMA/cxgb4: Added NULL check for lookup_atid",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-47749",
    "datePublished": "2024-10-21T12:14:15.126Z",
    "dateReserved": "2024-09-30T16:00:12.961Z",
    "dateUpdated": "2026-08-05T11:39:57.111Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.