Vulnerability-Lookup

FKIE_CVE-2025-21694

Vulnerability from fkie_nvd - Published: 2025-02-12 14:15 - Updated: 2026-10-15 02:17

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/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: fs/proc: fix softlockup in __read_vmcore (part 2) Since commit 5cbcb62dddf5 ("fs/proc: fix softlockup in __read_vmcore") the number of softlockups in __read_vmcore at kdump time have gone down, but they still happen sometimes. In a memory constrained environment like the kdump image, a softlockup is not just a harmless message, but it can interfere with things like RCU freeing memory, causing the crashdump to get stuck. The second loop in __read_vmcore has a lot more opportunities for natural sleep points, like scheduling out while waiting for a data write to happen, but apparently that is not always enough. Add a cond_resched() to the second loop in __read_vmcore to (hopefully) get rid of the softlockups.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/649b266606bc413407ce315f710c8ce8a88ee30a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/65c367bd9d4f43513c7f837df5753bea9561b836	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/80828540dad0757b6337c6561d49c81038f38d87	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/80da29deb88a3a907441fc35bb7bac309f31e713	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/84c4ed15626574c9ac6c1039ba9c137a77bcc7f2	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a5a2ee8144c3897d37403a69118c3e3dc5713958	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/cbc5dde0a461240046e8a41c43d7c3b76d5db952	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
0b142b55-0307-4c5a-b3c9-f314f3fb7c5e	https://cert-portal.siemens.com/productcert/html/ssa-265688.html
0b142b55-0307-4c5a-b3c9-f314f3fb7c5e	https://cert-portal.siemens.com/productcert/html/ssa-355557.html
0b142b55-0307-4c5a-b3c9-f314f3fb7c5e	https://cert-portal.siemens.com/productcert/html/ssa-398330.html

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.13
linux	linux_kernel	6.13
linux	linux_kernel	6.13
linux	linux_kernel	6.13
linux	linux_kernel	6.13
linux	linux_kernel	6.13
linux	linux_kernel	6.13

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/proc/vmcore.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "84c4ed15626574c9ac6c1039ba9c137a77bcc7f2",
              "status": "affected",
              "version": "803d5a33d5ffdc2d86dcc0cfa01655a330612cdb",
              "versionType": "git"
            },
            {
              "lessThan": "80da29deb88a3a907441fc35bb7bac309f31e713",
              "status": "affected",
              "version": "70c1835e776c8447c1aca87ddb38cfe764fe756a",
              "versionType": "git"
            },
            {
              "lessThan": "649b266606bc413407ce315f710c8ce8a88ee30a",
              "status": "affected",
              "version": "e1b160a50c756e0efbea290b9bf5117cb80e8c4b",
              "versionType": "git"
            },
            {
              "lessThan": "65c367bd9d4f43513c7f837df5753bea9561b836",
              "status": "affected",
              "version": "a373ad833a6bfe4bc6cedcf7e56a99cc6fd9a193",
              "versionType": "git"
            },
            {
              "lessThan": "a5a2ee8144c3897d37403a69118c3e3dc5713958",
              "status": "affected",
              "version": "518fbd644dabb6aedbdd4939c6c9cc1bf651459f",
              "versionType": "git"
            },
            {
              "lessThan": "80828540dad0757b6337c6561d49c81038f38d87",
              "status": "affected",
              "version": "5cbcb62dddf5346077feb82b7b0c9254222d3445",
              "versionType": "git"
            },
            {
              "lessThan": "cbc5dde0a461240046e8a41c43d7c3b76d5db952",
              "status": "affected",
              "version": "5cbcb62dddf5346077feb82b7b0c9254222d3445",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "7bdf1d550ddfcd9ab797087421f77b7aceddc8a7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e8780e8a0e25dc4c3927f611ec8970d26c0c7369",
              "versionType": "git"
            },
            {
              "lessThan": "5.4.290",
              "status": "affected",
              "version": "5.4.279",
              "versionType": "semver"
            },
            {
              "lessThan": "5.10.234",
              "status": "affected",
              "version": "5.10.221",
              "versionType": "semver"
            },
            {
              "lessThan": "5.15.177",
              "status": "affected",
              "version": "5.15.162",
              "versionType": "semver"
            },
            {
              "lessThan": "6.1.127",
              "status": "affected",
              "version": "6.1.95",
              "versionType": "semver"
            },
            {
              "lessThan": "6.6.74",
              "status": "affected",
              "version": "6.6.35",
              "versionType": "semver"
            },
            {
              "lessThan": "4.20",
              "status": "affected",
              "version": "4.19.317",
              "versionType": "semver"
            },
            {
              "lessThan": "6.10",
              "status": "affected",
              "version": "6.9.6",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/proc/vmcore.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.290",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.234",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.177",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.127",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.74",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V3.1.5",
              "status": "affected",
              "version": "V3.1.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V3.1.5",
              "status": "affected",
              "version": "V3.1.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V3.1.5",
              "status": "affected",
              "version": "V3.1.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V3.1.5",
              "status": "affected",
              "version": "V3.1.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V3.1.5",
              "status": "affected",
              "version": "V3.1.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "RUGGEDCOM RST2428P",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V3.2",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V3.2",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SCALANCE XCM-/XRM-/XCH-/XRH-300 family",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V3.2",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DBCC7CEA-15C0-47C4-8D3B-10F7FF0BEBA3",
              "versionEndExcluding": "4.20",
              "versionStartIncluding": "4.19.317",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "34F4B425-5BC9-41A8-A854-76462A933A22",
              "versionEndExcluding": "5.4.290",
              "versionStartIncluding": "5.4.279",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F56C8BB3-6F28-497B-AD0A-FB567EAAC3E4",
              "versionEndExcluding": "5.10.234",
              "versionStartIncluding": "5.10.221",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A98310AE-F6B9-42BC-80BA-919A4ADE77E7",
              "versionEndExcluding": "5.15.177",
              "versionStartIncluding": "5.15.162",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "96A4B1CA-339F-4E20-B649-CD4A34DDF077",
              "versionEndExcluding": "6.1.127",
              "versionStartIncluding": "6.1.95",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "52E9209F-1721-467F-9588-38F544C837A0",
              "versionEndExcluding": "6.6.74",
              "versionStartIncluding": "6.6.35",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8AF64430-37DA-41A5-A630-9BAC600DC51D",
              "versionEndExcluding": "6.12.11",
              "versionStartIncluding": "6.9.6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "62567B3C-6CEE-46D0-BC2E-B3717FBF7D13",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "5A073481-106D-4B15-B4C7-FB0213B8E1D4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "DE491969-75AE-4A6B-9A58-8FC5AF98798F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "93C0660D-7FB8-4FBA-892A-B064BA71E49E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc5:*:*:*:*:*:*",
              "matchCriteriaId": "034C36A6-C481-41F3-AE9A-D116E5BE6895",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc6:*:*:*:*:*:*",
              "matchCriteriaId": "8AF9DC49-2085-4FFB-A7E3-73DFAFECC7F2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc7:*:*:*:*:*:*",
              "matchCriteriaId": "5DFCDFB8-4FD0-465A-9076-D813D78FE51B",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/proc: fix softlockup in __read_vmcore (part 2)\n\nSince commit 5cbcb62dddf5 (\"fs/proc: fix softlockup in __read_vmcore\") the\nnumber of softlockups in __read_vmcore at kdump time have gone down, but\nthey still happen sometimes.\n\nIn a memory constrained environment like the kdump image, a softlockup is\nnot just a harmless message, but it can interfere with things like RCU\nfreeing memory, causing the crashdump to get stuck.\n\nThe second loop in __read_vmcore has a lot more opportunities for natural\nsleep points, like scheduling out while waiting for a data write to\nhappen, but apparently that is not always enough.\n\nAdd a cond_resched() to the second loop in __read_vmcore to (hopefully)\nget rid of the softlockups."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: fs/proc: fix softlockup in __read_vmcore (parte 2) Desde el commit 5cbcb62dddf5 (\"fs/proc: fix softlockup in __read_vmcore\"), la cantidad de softlockups en __read_vmcore en el momento de kdump ha disminuido, pero a\u00fan ocurren a veces. En un entorno con restricciones de memoria como la imagen kdump, un softlockup no es solo un mensaje inofensivo, sino que puede interferir con cosas como la liberaci\u00f3n de memoria por parte de RCU, lo que hace que el crashdump se quede atascado. El segundo bucle en __read_vmcore tiene muchas m\u00e1s oportunidades para puntos de suspensi\u00f3n naturales, como programar la salida mientras se espera que se escriban datos, pero aparentemente eso no siempre es suficiente. Agregue un cond_resched() al segundo bucle en __read_vmcore para (con suerte) deshacerse de los softlockups."
    }
  ],
  "id": "CVE-2025-21694",
  "lastModified": "2026-10-15T02:17:27.130",
  "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"
      },
      {
        "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": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-21694",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-10-01T20:08:56.110006Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-02-12T14:15:32.463",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/649b266606bc413407ce315f710c8ce8a88ee30a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/65c367bd9d4f43513c7f837df5753bea9561b836"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/80828540dad0757b6337c6561d49c81038f38d87"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/80da29deb88a3a907441fc35bb7bac309f31e713"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/84c4ed15626574c9ac6c1039ba9c137a77bcc7f2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/a5a2ee8144c3897d37403a69118c3e3dc5713958"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/cbc5dde0a461240046e8a41c43d7c3b76d5db952"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
    },
    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
    },
    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"
    },
    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2025-21694 (GCVE-0-2025-21694)

Vulnerability from cvelistv5 – Published: 2025-02-12 13:27 – Updated: 2026-10-15 01:03

Title

fs/proc: fix softlockup in __read_vmcore (part 2)

Summary

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/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 2025-10-01 20:08 UTC

CWE

CWE-noinfo Not enough information

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6641 records in the last 180 days details

References

12 references

URL	Tags
https://git.kernel.org/stable/c/84c4ed15626574c9a…
https://git.kernel.org/stable/c/80da29deb88a3a907…
https://git.kernel.org/stable/c/649b266606bc41340…
https://git.kernel.org/stable/c/65c367bd9d4f43513…
https://git.kernel.org/stable/c/a5a2ee8144c3897d3…
https://git.kernel.org/stable/c/80828540dad0757b6…
https://git.kernel.org/stable/c/cbc5dde0a46124004…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2025…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

9 products

Vendor	Product	Version
Linux	Linux	Affected: 803d5a33d5ffdc2d86dcc0cfa01655a330612cdb , < 84c4ed15626574c9ac6c1039ba9c137a77bcc7f2 (git) Affected: 70c1835e776c8447c1aca87ddb38cfe764fe756a , < 80da29deb88a3a907441fc35bb7bac309f31e713 (git) Affected: e1b160a50c756e0efbea290b9bf5117cb80e8c4b , < 649b266606bc413407ce315f710c8ce8a88ee30a (git) Affected: a373ad833a6bfe4bc6cedcf7e56a99cc6fd9a193 , < 65c367bd9d4f43513c7f837df5753bea9561b836 (git) Affected: 518fbd644dabb6aedbdd4939c6c9cc1bf651459f , < a5a2ee8144c3897d37403a69118c3e3dc5713958 (git) Affected: 5cbcb62dddf5346077feb82b7b0c9254222d3445 , < 80828540dad0757b6337c6561d49c81038f38d87 (git) Affected: 5cbcb62dddf5346077feb82b7b0c9254222d3445 , < cbc5dde0a461240046e8a41c43d7c3b76d5db952 (git) Affected: 7bdf1d550ddfcd9ab797087421f77b7aceddc8a7 (git) Affected: e8780e8a0e25dc4c3927f611ec8970d26c0c7369 (git) Affected: 5.4.279 , < 5.4.290 (semver) Affected: 5.10.221 , < 5.10.234 (semver) Affected: 5.15.162 , < 5.15.177 (semver) Affected: 6.1.95 , < 6.1.127 (semver) Affected: 6.6.35 , < 6.6.74 (semver) Affected: 4.19.317 , < 4.20 (semver) Affected: 6.9.6 , < 6.10 (semver)
Linux	Linux	Affected: 6.10 Unaffected: 0 , < 6.10 (semver) Unaffected: 5.4.290 , ≤ 5.4.* (semver) Unaffected: 5.10.234 , ≤ 5.10.* (semver) Unaffected: 5.15.177 , ≤ 5.15.* (semver) Unaffected: 6.1.127 , ≤ 6.1.* (semver) Unaffected: 6.6.74 , ≤ 6.6.* (semver) Unaffected: 6.12.11 , ≤ 6.12.* (semver) Unaffected: 6.13 , ≤ * (original_commit_for_fix)
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)
Siemens	SIMATIC S7-1500 TM MFP - GNU/Linux subsystem	Affected: 0 , < * (custom)
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)
Siemens	RUGGEDCOM RST2428P	Affected: 0 , < V3.2 (custom)
Siemens	SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family	Affected: 0 , < V3.2 (custom)
Siemens	SCALANCE XCM-/XRM-/XCH-/XRH-300 family	Affected: 0 , < V3.2 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-21694",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T20:08:56.110006Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "description": "CWE-noinfo Not enough information",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T20:17:06.985Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T20:59:17.714Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.1.5",
                "status": "affected",
                "version": "V3.1.0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.1.5",
                "status": "affected",
                "version": "V3.1.0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.1.5",
                "status": "affected",
                "version": "V3.1.0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.1.5",
                "status": "affected",
                "version": "V3.1.0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.1.5",
                "status": "affected",
                "version": "V3.1.0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "RUGGEDCOM RST2428P",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.2",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.2",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XCM-/XRM-/XCH-/XRH-300 family",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.2",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-15T01:03:18.737Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
          },
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
          },
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"
          }
        ],
        "x_adpType": "supplier"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/proc/vmcore.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "84c4ed15626574c9ac6c1039ba9c137a77bcc7f2",
              "status": "affected",
              "version": "803d5a33d5ffdc2d86dcc0cfa01655a330612cdb",
              "versionType": "git"
            },
            {
              "lessThan": "80da29deb88a3a907441fc35bb7bac309f31e713",
              "status": "affected",
              "version": "70c1835e776c8447c1aca87ddb38cfe764fe756a",
              "versionType": "git"
            },
            {
              "lessThan": "649b266606bc413407ce315f710c8ce8a88ee30a",
              "status": "affected",
              "version": "e1b160a50c756e0efbea290b9bf5117cb80e8c4b",
              "versionType": "git"
            },
            {
              "lessThan": "65c367bd9d4f43513c7f837df5753bea9561b836",
              "status": "affected",
              "version": "a373ad833a6bfe4bc6cedcf7e56a99cc6fd9a193",
              "versionType": "git"
            },
            {
              "lessThan": "a5a2ee8144c3897d37403a69118c3e3dc5713958",
              "status": "affected",
              "version": "518fbd644dabb6aedbdd4939c6c9cc1bf651459f",
              "versionType": "git"
            },
            {
              "lessThan": "80828540dad0757b6337c6561d49c81038f38d87",
              "status": "affected",
              "version": "5cbcb62dddf5346077feb82b7b0c9254222d3445",
              "versionType": "git"
            },
            {
              "lessThan": "cbc5dde0a461240046e8a41c43d7c3b76d5db952",
              "status": "affected",
              "version": "5cbcb62dddf5346077feb82b7b0c9254222d3445",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "7bdf1d550ddfcd9ab797087421f77b7aceddc8a7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e8780e8a0e25dc4c3927f611ec8970d26c0c7369",
              "versionType": "git"
            },
            {
              "lessThan": "5.4.290",
              "status": "affected",
              "version": "5.4.279",
              "versionType": "semver"
            },
            {
              "lessThan": "5.10.234",
              "status": "affected",
              "version": "5.10.221",
              "versionType": "semver"
            },
            {
              "lessThan": "5.15.177",
              "status": "affected",
              "version": "5.15.162",
              "versionType": "semver"
            },
            {
              "lessThan": "6.1.127",
              "status": "affected",
              "version": "6.1.95",
              "versionType": "semver"
            },
            {
              "lessThan": "6.6.74",
              "status": "affected",
              "version": "6.6.35",
              "versionType": "semver"
            },
            {
              "lessThan": "4.20",
              "status": "affected",
              "version": "4.19.317",
              "versionType": "semver"
            },
            {
              "lessThan": "6.10",
              "status": "affected",
              "version": "6.9.6",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/proc/vmcore.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.290",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.234",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.177",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.127",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.74",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.290",
                  "versionStartIncluding": "5.4.279",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.234",
                  "versionStartIncluding": "5.10.221",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.177",
                  "versionStartIncluding": "5.15.162",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.127",
                  "versionStartIncluding": "6.1.95",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.74",
                  "versionStartIncluding": "6.6.35",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.11",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.19.317",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.9.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/proc: fix softlockup in __read_vmcore (part 2)\n\nSince commit 5cbcb62dddf5 (\"fs/proc: fix softlockup in __read_vmcore\") the\nnumber of softlockups in __read_vmcore at kdump time have gone down, but\nthey still happen sometimes.\n\nIn a memory constrained environment like the kdump image, a softlockup is\nnot just a harmless message, but it can interfere with things like RCU\nfreeing memory, causing the crashdump to get stuck.\n\nThe second loop in __read_vmcore has a lot more opportunities for natural\nsleep points, like scheduling out while waiting for a data write to\nhappen, but apparently that is not always enough.\n\nAdd a cond_resched() to the second loop in __read_vmcore to (hopefully)\nget rid of the softlockups."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:56:54.899Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/84c4ed15626574c9ac6c1039ba9c137a77bcc7f2"
        },
        {
          "url": "https://git.kernel.org/stable/c/80da29deb88a3a907441fc35bb7bac309f31e713"
        },
        {
          "url": "https://git.kernel.org/stable/c/649b266606bc413407ce315f710c8ce8a88ee30a"
        },
        {
          "url": "https://git.kernel.org/stable/c/65c367bd9d4f43513c7f837df5753bea9561b836"
        },
        {
          "url": "https://git.kernel.org/stable/c/a5a2ee8144c3897d37403a69118c3e3dc5713958"
        },
        {
          "url": "https://git.kernel.org/stable/c/80828540dad0757b6337c6561d49c81038f38d87"
        },
        {
          "url": "https://git.kernel.org/stable/c/cbc5dde0a461240046e8a41c43d7c3b76d5db952"
        }
      ],
      "title": "fs/proc: fix softlockup in __read_vmcore (part 2)",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21694",
    "datePublished": "2025-02-12T13:27:53.763Z",
    "dateReserved": "2024-12-29T08:45:45.743Z",
    "dateUpdated": "2026-10-15T01:03:18.737Z",
    "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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

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.

Action not permitted