FKIE_CVE-2024-49852

Vulnerability from fkie_nvd - Published: 2024-10-21 13:15 - Updated: 2026-06-17 08:00
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: elx: libefc: Fix potential use after free in efc_nport_vport_del() The kref_put() function will call nport->release if the refcount drops to zero. The nport->release release function is _efc_nport_free() which frees "nport". But then we dereference "nport" on the next line which is a use after free. Re-order these lines to avoid the use after free.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/16a570f07d870a285b0c0b0d1ca4dff79e8aa5ffPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2e4b02fad094976763af08fec2c620f4f8edd9aePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7c2908985e4ae0ea1b526b3916de9e5351650908Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/98752fcd076a8cbc978016eae7125b4971be1eecPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/abc71e89170ed32ecf0a5a29f31aa711e143e941Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/baeb8628ab7f4577740f00e439d3fdf7c876b0ffPatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/elx/libefc/efc_nport.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "16a570f07d870a285b0c0b0d1ca4dff79e8aa5ff",
              "status": "affected",
              "version": "fcd427303eb90aa3cb08e7e0b68e0e67a6d47346",
              "versionType": "git"
            },
            {
              "lessThan": "abc71e89170ed32ecf0a5a29f31aa711e143e941",
              "status": "affected",
              "version": "fcd427303eb90aa3cb08e7e0b68e0e67a6d47346",
              "versionType": "git"
            },
            {
              "lessThan": "baeb8628ab7f4577740f00e439d3fdf7c876b0ff",
              "status": "affected",
              "version": "fcd427303eb90aa3cb08e7e0b68e0e67a6d47346",
              "versionType": "git"
            },
            {
              "lessThan": "7c2908985e4ae0ea1b526b3916de9e5351650908",
              "status": "affected",
              "version": "fcd427303eb90aa3cb08e7e0b68e0e67a6d47346",
              "versionType": "git"
            },
            {
              "lessThan": "98752fcd076a8cbc978016eae7125b4971be1eec",
              "status": "affected",
              "version": "fcd427303eb90aa3cb08e7e0b68e0e67a6d47346",
              "versionType": "git"
            },
            {
              "lessThan": "2e4b02fad094976763af08fec2c620f4f8edd9ae",
              "status": "affected",
              "version": "fcd427303eb90aa3cb08e7e0b68e0e67a6d47346",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/elx/libefc/efc_nport.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.14"
            },
            {
              "lessThan": "5.14",
              "status": "unaffected",
              "version": "0",
              "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": "5CD3CB21-008A-4AF9-9337-0FF92043AE5E",
              "versionEndExcluding": "5.15.168",
              "versionStartIncluding": "5.14",
              "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\nscsi: elx: libefc: Fix potential use after free in efc_nport_vport_del()\n\nThe kref_put() function will call nport-\u003erelease if the refcount drops to\nzero.  The nport-\u003erelease release function is _efc_nport_free() which frees\n\"nport\".  But then we dereference \"nport\" on the next line which is a use\nafter free.  Re-order these lines to avoid the use after free."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: elx: libefc: Se corrige el potencial use after freea nport-\u0026gt;release si el recuento de referencias cae a cero. La funci\u00f3n de liberaci\u00f3n nport-\u0026gt;release es _efc_nport_free() que libera \"nport\". Pero luego desreferenciamos \"nport\" en la siguiente l\u00ednea que es un use after free. Reordena estas l\u00edneas para evitar el use after free."
    }
  ],
  "id": "CVE-2024-49852",
  "lastModified": "2026-06-17T08:00:35.127",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-49852",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-10-21T12:56:47.269710Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-10-21T13:15:05.977",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/16a570f07d870a285b0c0b0d1ca4dff79e8aa5ff"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/2e4b02fad094976763af08fec2c620f4f8edd9ae"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/7c2908985e4ae0ea1b526b3916de9e5351650908"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/98752fcd076a8cbc978016eae7125b4971be1eec"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/abc71e89170ed32ecf0a5a29f31aa711e143e941"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/baeb8628ab7f4577740f00e439d3fdf7c876b0ff"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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