CVE-2024-42265 (GCVE-0-2024-42265)

Vulnerability from cvelistv5 – Published: 2024-08-17 08:54 – Updated: 2026-05-12 11:56
VLAI
Title
protect the fetch of ->fd[fd] in do_dup2() from mispredictions
Summary
In the Linux kernel, the following vulnerability has been resolved: protect the fetch of ->fd[fd] in do_dup2() from mispredictions both callers have verified that fd is not greater than ->max_fds; however, misprediction might end up with tofree = fdt->fd[fd]; being speculatively executed. That's wrong for the same reasons why it's wrong in close_fd()/file_close_fd_locked(); the same solution applies - array_index_nospec(fd, fdt->max_fds) could differ from fd only in case of speculative execution on mispredicted path.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 16:12 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 8280d16172243702ed43432f826ca6130edb4086 , < ed42e8ff509d2a61c6642d1825032072dab79f26 (git)
Affected: 8280d16172243702ed43432f826ca6130edb4086 , < 41a6c31df77bd8e050136b0a200b537da9e1084a (git)
Affected: 8280d16172243702ed43432f826ca6130edb4086 , < 08775b3d6ed117cf4518754ec7300ee42b6a5368 (git)
Affected: 8280d16172243702ed43432f826ca6130edb4086 , < 3f480493550b6a23d3a65d095d6569d4a7f56a0f (git)
Affected: 8280d16172243702ed43432f826ca6130edb4086 , < 5db999fff545b924b24c9afd368ef5c17279b176 (git)
Affected: 8280d16172243702ed43432f826ca6130edb4086 , < da72e783afd27d9f487836b2e6738146c0edd149 (git)
Affected: 8280d16172243702ed43432f826ca6130edb4086 , < 1171ceccabfd596ca370c5d2cbb47d110c3f2fe1 (git)
Affected: 8280d16172243702ed43432f826ca6130edb4086 , < 8aa37bde1a7b645816cda8b80df4753ecf172bf1 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.7
Unaffected: 0 , < 3.7 (semver)
Unaffected: 4.19.320 , ≤ 4.19.* (semver)
Unaffected: 5.4.282 , ≤ 5.4.* (semver)
Unaffected: 5.10.224 , ≤ 5.10.* (semver)
Unaffected: 5.15.165 , ≤ 5.15.* (semver)
Unaffected: 6.1.104 , ≤ 6.1.* (semver)
Unaffected: 6.6.45 , ≤ 6.6.* (semver)
Unaffected: 6.10.4 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-42265",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T16:12:30.860612Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-12T17:33:05.845Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T22:02:59.813Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-12T11:56:42.073Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
          }
        ],
        "x_adpType": "supplier"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/file.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ed42e8ff509d2a61c6642d1825032072dab79f26",
              "status": "affected",
              "version": "8280d16172243702ed43432f826ca6130edb4086",
              "versionType": "git"
            },
            {
              "lessThan": "41a6c31df77bd8e050136b0a200b537da9e1084a",
              "status": "affected",
              "version": "8280d16172243702ed43432f826ca6130edb4086",
              "versionType": "git"
            },
            {
              "lessThan": "08775b3d6ed117cf4518754ec7300ee42b6a5368",
              "status": "affected",
              "version": "8280d16172243702ed43432f826ca6130edb4086",
              "versionType": "git"
            },
            {
              "lessThan": "3f480493550b6a23d3a65d095d6569d4a7f56a0f",
              "status": "affected",
              "version": "8280d16172243702ed43432f826ca6130edb4086",
              "versionType": "git"
            },
            {
              "lessThan": "5db999fff545b924b24c9afd368ef5c17279b176",
              "status": "affected",
              "version": "8280d16172243702ed43432f826ca6130edb4086",
              "versionType": "git"
            },
            {
              "lessThan": "da72e783afd27d9f487836b2e6738146c0edd149",
              "status": "affected",
              "version": "8280d16172243702ed43432f826ca6130edb4086",
              "versionType": "git"
            },
            {
              "lessThan": "1171ceccabfd596ca370c5d2cbb47d110c3f2fe1",
              "status": "affected",
              "version": "8280d16172243702ed43432f826ca6130edb4086",
              "versionType": "git"
            },
            {
              "lessThan": "8aa37bde1a7b645816cda8b80df4753ecf172bf1",
              "status": "affected",
              "version": "8280d16172243702ed43432f826ca6130edb4086",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/file.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.7"
            },
            {
              "lessThan": "3.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.320",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.282",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.224",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.165",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.104",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.45",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.4",
              "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": "4.19.320",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.282",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.224",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.165",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.104",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.45",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.10.4",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nprotect the fetch of -\u003efd[fd] in do_dup2() from mispredictions\n\nboth callers have verified that fd is not greater than -\u003emax_fds;\nhowever, misprediction might end up with\n        tofree = fdt-\u003efd[fd];\nbeing speculatively executed.  That\u0027s wrong for the same reasons\nwhy it\u0027s wrong in close_fd()/file_close_fd_locked(); the same\nsolution applies - array_index_nospec(fd, fdt-\u003emax_fds) could differ\nfrom fd only in case of speculative execution on mispredicted path."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T20:28:59.946Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ed42e8ff509d2a61c6642d1825032072dab79f26"
        },
        {
          "url": "https://git.kernel.org/stable/c/41a6c31df77bd8e050136b0a200b537da9e1084a"
        },
        {
          "url": "https://git.kernel.org/stable/c/08775b3d6ed117cf4518754ec7300ee42b6a5368"
        },
        {
          "url": "https://git.kernel.org/stable/c/3f480493550b6a23d3a65d095d6569d4a7f56a0f"
        },
        {
          "url": "https://git.kernel.org/stable/c/5db999fff545b924b24c9afd368ef5c17279b176"
        },
        {
          "url": "https://git.kernel.org/stable/c/da72e783afd27d9f487836b2e6738146c0edd149"
        },
        {
          "url": "https://git.kernel.org/stable/c/1171ceccabfd596ca370c5d2cbb47d110c3f2fe1"
        },
        {
          "url": "https://git.kernel.org/stable/c/8aa37bde1a7b645816cda8b80df4753ecf172bf1"
        }
      ],
      "title": "protect the fetch of -\u003efd[fd] in do_dup2() from mispredictions",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-42265",
    "datePublished": "2024-08-17T08:54:21.636Z",
    "dateReserved": "2024-07-30T07:40:12.259Z",
    "dateUpdated": "2026-05-12T11:56:42.073Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-42265",
      "date": "2026-10-05",
      "epss": "0.00279",
      "percentile": "0.18484"
    },
    "fkie_nvd": {
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nprotect the fetch of -\u003efd[fd] in do_dup2() from mispredictions\n\nboth callers have verified that fd is not greater than -\u003emax_fds;\nhowever, misprediction might end up with\n        tofree = fdt-\u003efd[fd];\nbeing speculatively executed.  That\u0027s wrong for the same reasons\nwhy it\u0027s wrong in close_fd()/file_close_fd_locked(); the same\nsolution applies - array_index_nospec(fd, fdt-\u003emax_fds) could differ\nfrom fd only in case of speculative execution on mispredicted path."
        },
        {
          "lang": "es",
          "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: proteger la recuperaci\u00f3n de -\u0026gt;fd[fd] en do_dup2() de predicciones err\u00f3neas; ambos llamadores han verificado que fd no es mayor que -\u0026gt;max_fds; sin embargo, una predicci\u00f3n err\u00f3nea podr\u00eda terminar con tofree = fdt-\u0026gt;fd[fd]; siendo ejecutado especulativamente. Eso est\u00e1 mal por las mismas razones por las que est\u00e1 mal en close_fd()/file_close_fd_locked(); se aplica la misma soluci\u00f3n: array_index_nospec(fd, fdt-\u0026gt;max_fds) podr\u00eda diferir de fd solo en caso de ejecuci\u00f3n especulativa en una ruta mal prevista."
        }
      ],
      "id": "CVE-2024-42265",
      "lastModified": "2024-08-19T12:59:59.177",
      "published": "2024-08-17T09:15:07.893",
      "references": [
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/08775b3d6ed117cf4518754ec7300ee42b6a5368"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/1171ceccabfd596ca370c5d2cbb47d110c3f2fe1"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/3f480493550b6a23d3a65d095d6569d4a7f56a0f"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/41a6c31df77bd8e050136b0a200b537da9e1084a"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/5db999fff545b924b24c9afd368ef5c17279b176"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/8aa37bde1a7b645816cda8b80df4753ecf172bf1"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/da72e783afd27d9f487836b2e6738146c0edd149"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/ed42e8ff509d2a61c6642d1825032072dab79f26"
        }
      ],
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Awaiting Analysis"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "fs/file.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "ed42e8ff509d2a61c6642d1825032072dab79f26",
                    "status": "affected",
                    "version": "8280d16172243702ed43432f826ca6130edb4086",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "41a6c31df77bd8e050136b0a200b537da9e1084a",
                    "status": "affected",
                    "version": "8280d16172243702ed43432f826ca6130edb4086",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "08775b3d6ed117cf4518754ec7300ee42b6a5368",
                    "status": "affected",
                    "version": "8280d16172243702ed43432f826ca6130edb4086",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "3f480493550b6a23d3a65d095d6569d4a7f56a0f",
                    "status": "affected",
                    "version": "8280d16172243702ed43432f826ca6130edb4086",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "5db999fff545b924b24c9afd368ef5c17279b176",
                    "status": "affected",
                    "version": "8280d16172243702ed43432f826ca6130edb4086",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "da72e783afd27d9f487836b2e6738146c0edd149",
                    "status": "affected",
                    "version": "8280d16172243702ed43432f826ca6130edb4086",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "1171ceccabfd596ca370c5d2cbb47d110c3f2fe1",
                    "status": "affected",
                    "version": "8280d16172243702ed43432f826ca6130edb4086",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "8aa37bde1a7b645816cda8b80df4753ecf172bf1",
                    "status": "affected",
                    "version": "8280d16172243702ed43432f826ca6130edb4086",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "fs/file.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "3.7"
                  },
                  {
                    "lessThan": "3.7",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.19.*",
                    "status": "unaffected",
                    "version": "4.19.320",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.4.*",
                    "status": "unaffected",
                    "version": "5.4.282",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.224",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.165",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.104",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.45",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.10.*",
                    "status": "unaffected",
                    "version": "6.10.4",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.11",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          },
          {
            "affectedData": [
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0B4EF915-550B-45E5-B2CA-648FEACD60FC",
                    "versionEndExcluding": "4.19.320",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A8961D98-9ACF-4188-BA88-44038B14BC28",
                    "versionEndExcluding": "5.4.282",
                    "versionStartIncluding": "4.20",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5CCEDF13-293D-4E64-B501-4409D0365AFE",
                    "versionEndExcluding": "5.10.224",
                    "versionStartIncluding": "5.5",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B4E2B568-3171-41DE-B519-F2B1A3600D94",
                    "versionEndExcluding": "5.15.165",
                    "versionStartIncluding": "5.11",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "20DB9042-F89E-4024-B005-ACBBA99CA659",
                    "versionEndExcluding": "6.1.104",
                    "versionStartIncluding": "5.16",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "6ED8FBDF-48EE-4FEB-8B1A-CFF4FBCB27BF",
                    "versionEndExcluding": "6.6.45",
                    "versionStartIncluding": "6.2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "1F9FECDC-6CB8-41E5-B32A-E46776100D9C",
                    "versionEndExcluding": "6.10.4",
                    "versionStartIncluding": "6.7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "8B3CE743-2126-47A3-8B7C-822B502CF119",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nprotect the fetch of -\u003efd[fd] in do_dup2() from mispredictions\n\nboth callers have verified that fd is not greater than -\u003emax_fds;\nhowever, misprediction might end up with\n        tofree = fdt-\u003efd[fd];\nbeing speculatively executed.  That\u0027s wrong for the same reasons\nwhy it\u0027s wrong in close_fd()/file_close_fd_locked(); the same\nsolution applies - array_index_nospec(fd, fdt-\u003emax_fds) could differ\nfrom fd only in case of speculative execution on mispredicted path."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: proteger la recuperaci\u00f3n de -\u0026gt;fd[fd] en do_dup2() de predicciones err\u00f3neas; ambos llamadores han verificado que fd no es mayor que -\u0026gt;max_fds; sin embargo, una predicci\u00f3n err\u00f3nea podr\u00eda terminar con tofree = fdt-\u0026gt;fd[fd]; siendo ejecutado especulativamente. Eso est\u00e1 mal por las mismas razones por las que est\u00e1 mal en close_fd()/file_close_fd_locked(); se aplica la misma soluci\u00f3n: array_index_nospec(fd, fdt-\u0026gt;max_fds) podr\u00eda diferir de fd solo en caso de ejecuci\u00f3n especulativa en una ruta mal prevista."
          }
        ],
        "id": "CVE-2024-42265",
        "lastModified": "2026-06-17T07:49:08.037",
        "metrics": {
          "cvssMetricV31": [
            {
              "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-2024-42265",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T16:12:30.860612Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2024-08-17T09:15:07.893",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/08775b3d6ed117cf4518754ec7300ee42b6a5368"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/1171ceccabfd596ca370c5d2cbb47d110c3f2fe1"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/3f480493550b6a23d3a65d095d6569d4a7f56a0f"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/41a6c31df77bd8e050136b0a200b537da9e1084a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/5db999fff545b924b24c9afd368ef5c17279b176"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/8aa37bde1a7b645816cda8b80df4753ecf172bf1"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/da72e783afd27d9f487836b2e6738146c0edd149"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ed42e8ff509d2a61c6642d1825032072dab79f26"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
          },
          {
            "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T07:48:53+00:00",
      "cve": "CVE-2024-42265",
      "id": "CVE-2024-42265",
      "initial_release_date": "2024-08-17T00:00:00+00:00",
      "product_status:fixed": "704",
      "product_status:known_affected": "80",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: protect the fetch of -\u0026gt;fd[fd] in do_dup2() from mispredictions",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-42265.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-19T02:24:43Z",
      "cve": "CVE-2024-42265",
      "id": "CVE-2024-42265",
      "initial_release_date": "2024-08-18T02:02:56Z",
      "product_status:known_affected": "315",
      "product_status:known_not_affected": "159",
      "product_status:recommended": "1035",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-42265",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-42265.json",
      "version": "74"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2025-11-03T22:02:59.813Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
              },
              {
                "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-42265",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-09-10T16:12:30.860612Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-09-11T12:42:14.436Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "fs/file.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "ed42e8ff509d2a61c6642d1825032072dab79f26",
                  "status": "affected",
                  "version": "8280d16172243702ed43432f826ca6130edb4086",
                  "versionType": "git"
                },
                {
                  "lessThan": "41a6c31df77bd8e050136b0a200b537da9e1084a",
                  "status": "affected",
                  "version": "8280d16172243702ed43432f826ca6130edb4086",
                  "versionType": "git"
                },
                {
                  "lessThan": "08775b3d6ed117cf4518754ec7300ee42b6a5368",
                  "status": "affected",
                  "version": "8280d16172243702ed43432f826ca6130edb4086",
                  "versionType": "git"
                },
                {
                  "lessThan": "3f480493550b6a23d3a65d095d6569d4a7f56a0f",
                  "status": "affected",
                  "version": "8280d16172243702ed43432f826ca6130edb4086",
                  "versionType": "git"
                },
                {
                  "lessThan": "5db999fff545b924b24c9afd368ef5c17279b176",
                  "status": "affected",
                  "version": "8280d16172243702ed43432f826ca6130edb4086",
                  "versionType": "git"
                },
                {
                  "lessThan": "da72e783afd27d9f487836b2e6738146c0edd149",
                  "status": "affected",
                  "version": "8280d16172243702ed43432f826ca6130edb4086",
                  "versionType": "git"
                },
                {
                  "lessThan": "1171ceccabfd596ca370c5d2cbb47d110c3f2fe1",
                  "status": "affected",
                  "version": "8280d16172243702ed43432f826ca6130edb4086",
                  "versionType": "git"
                },
                {
                  "lessThan": "8aa37bde1a7b645816cda8b80df4753ecf172bf1",
                  "status": "affected",
                  "version": "8280d16172243702ed43432f826ca6130edb4086",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "fs/file.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "3.7"
                },
                {
                  "lessThan": "3.7",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.19.*",
                  "status": "unaffected",
                  "version": "4.19.320",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.4.*",
                  "status": "unaffected",
                  "version": "5.4.282",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.224",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.165",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.104",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.45",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.10.*",
                  "status": "unaffected",
                  "version": "6.10.4",
                  "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": "4.19.320",
                      "versionStartIncluding": "3.7",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.4.282",
                      "versionStartIncluding": "3.7",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.224",
                      "versionStartIncluding": "3.7",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.165",
                      "versionStartIncluding": "3.7",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.104",
                      "versionStartIncluding": "3.7",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.45",
                      "versionStartIncluding": "3.7",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.10.4",
                      "versionStartIncluding": "3.7",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.11",
                      "versionStartIncluding": "3.7",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nprotect the fetch of -\u003efd[fd] in do_dup2() from mispredictions\n\nboth callers have verified that fd is not greater than -\u003emax_fds;\nhowever, misprediction might end up with\n        tofree = fdt-\u003efd[fd];\nbeing speculatively executed.  That\u0027s wrong for the same reasons\nwhy it\u0027s wrong in close_fd()/file_close_fd_locked(); the same\nsolution applies - array_index_nospec(fd, fdt-\u003emax_fds) could differ\nfrom fd only in case of speculative execution on mispredicted path."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-01-05T10:52:09.824Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/ed42e8ff509d2a61c6642d1825032072dab79f26"
            },
            {
              "url": "https://git.kernel.org/stable/c/41a6c31df77bd8e050136b0a200b537da9e1084a"
            },
            {
              "url": "https://git.kernel.org/stable/c/08775b3d6ed117cf4518754ec7300ee42b6a5368"
            },
            {
              "url": "https://git.kernel.org/stable/c/3f480493550b6a23d3a65d095d6569d4a7f56a0f"
            },
            {
              "url": "https://git.kernel.org/stable/c/5db999fff545b924b24c9afd368ef5c17279b176"
            },
            {
              "url": "https://git.kernel.org/stable/c/da72e783afd27d9f487836b2e6738146c0edd149"
            },
            {
              "url": "https://git.kernel.org/stable/c/1171ceccabfd596ca370c5d2cbb47d110c3f2fe1"
            },
            {
              "url": "https://git.kernel.org/stable/c/8aa37bde1a7b645816cda8b80df4753ecf172bf1"
            }
          ],
          "title": "protect the fetch of -\u003efd[fd] in do_dup2() from mispredictions",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-42265",
        "datePublished": "2024-08-17T08:54:21.636Z",
        "dateReserved": "2024-07-30T07:40:12.259Z",
        "dateUpdated": "2026-01-05T10:52:09.824Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



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.