FKIE_CVE-2024-26856

Vulnerability from fkie_nvd - Published: 2024-04-17 11:15 - Updated: 2026-08-04 11:17
Severity
8.8 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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: net: sparx5: Fix use after free inside sparx5_del_mact_entry Based on the static analyzis of the code it looks like when an entry from the MAC table was removed, the entry was still used after being freed. More precise the vid of the mac_entry was used after calling devm_kfree on the mac_entry. The fix consists in first using the vid of the mac_entry to delete the entry from the HW and after that to free it.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0de693d68b0a18d5e256556c7c62d92cca35ad52Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/71809805b95052ff551922f11660008fb3666025Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/89d72d4125e94aa3c2140fedd97ce07ba9e37674Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e46274df1100fb0c06704195bfff5bfbd418bf64Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e83bebb718fd1f42549358730e1206164e0861d6Mailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0de693d68b0a18d5e256556c7c62d92cca35ad52Mailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/71809805b95052ff551922f11660008fb3666025Mailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/89d72d4125e94aa3c2140fedd97ce07ba9e37674Mailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e46274df1100fb0c06704195bfff5bfbd418bf64Mailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e83bebb718fd1f42549358730e1206164e0861d6Mailing List, Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.8
linux linux_kernel 6.8
linux linux_kernel 6.8
linux linux_kernel 6.8
linux linux_kernel 6.8
linux linux_kernel 6.8
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/microchip/sparx5/sparx5_mactable.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e46274df1100fb0c06704195bfff5bfbd418bf64",
              "status": "affected",
              "version": "b37a1bae742f92cc9b1f777d54e04ee3d86bbfc2",
              "versionType": "git"
            },
            {
              "lessThan": "0de693d68b0a18d5e256556c7c62d92cca35ad52",
              "status": "affected",
              "version": "b37a1bae742f92cc9b1f777d54e04ee3d86bbfc2",
              "versionType": "git"
            },
            {
              "lessThan": "e83bebb718fd1f42549358730e1206164e0861d6",
              "status": "affected",
              "version": "b37a1bae742f92cc9b1f777d54e04ee3d86bbfc2",
              "versionType": "git"
            },
            {
              "lessThan": "71809805b95052ff551922f11660008fb3666025",
              "status": "affected",
              "version": "b37a1bae742f92cc9b1f777d54e04ee3d86bbfc2",
              "versionType": "git"
            },
            {
              "lessThan": "89d72d4125e94aa3c2140fedd97ce07ba9e37674",
              "status": "affected",
              "version": "b37a1bae742f92cc9b1f777d54e04ee3d86bbfc2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/microchip/sparx5/sparx5_mactable.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": "5.15.152",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.82",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.22",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "31916640-A446-4FEF-843D-B96BF45DF7B9",
              "versionEndExcluding": "5.15.152",
              "versionStartIncluding": "5.14",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "933AC628-7DAD-4B2D-82E3-3B7B331B1C09",
              "versionEndExcluding": "6.1.82",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "AC6FD6F8-5B16-4F53-8116-D42F4BF4FBAC",
              "versionEndExcluding": "6.6.22",
              "versionStartIncluding": "6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "FB4549F9-0160-455F-8CDC-98D38AEF6D66",
              "versionEndExcluding": "6.7.10",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "B9F4EA73-0894-400F-A490-3A397AB7A517",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "056BD938-0A27-4569-B391-30578B309EE3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "F02056A5-B362-4370-9FF8-6F0BD384D520",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "62075ACE-B2A0-4B16-829D-B3DA5AE5CC41",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc5:*:*:*:*:*:*",
              "matchCriteriaId": "A780F817-2A77-4130-A9B7-5C25606314E3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc6:*:*:*:*:*:*",
              "matchCriteriaId": "AEB9199B-AB8F-4877-8964-E2BA95B5F15C",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sparx5: Fix use after free inside sparx5_del_mact_entry\n\nBased on the static analyzis of the code it looks like when an entry\nfrom the MAC table was removed, the entry was still used after being\nfreed. More precise the vid of the mac_entry was used after calling\ndevm_kfree on the mac_entry.\nThe fix consists in first using the vid of the mac_entry to delete the\nentry from the HW and after that to free it."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: sparx5: corrige el use after free dentro de sparx5_del_mact_entry Seg\u00fan el an\u00e1lisis est\u00e1tico del c\u00f3digo, parece que cuando se elimin\u00f3 una entrada de la tabla MAC, la entrada todav\u00eda se us\u00f3 despu\u00e9s de ser liberado. M\u00e1s precisamente, el video de mac_entry se us\u00f3 despu\u00e9s de llamar a devm_kfree en mac_entry. La soluci\u00f3n consiste en utilizar primero el vid de mac_entry para eliminar la entrada del HW y luego liberarla."
    }
  ],
  "id": "CVE-2024-26856",
  "lastModified": "2026-08-04T11:17:13.770",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      },
      {
        "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-2024-26856",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-05-01T19:36:26.233327Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-04-17T11:15:08.740",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
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    },
    {
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      "tags": [
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      "url": "https://git.kernel.org/stable/c/71809805b95052ff551922f11660008fb3666025"
    },
    {
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      "tags": [
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        "Patch"
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      "url": "https://git.kernel.org/stable/c/89d72d4125e94aa3c2140fedd97ce07ba9e37674"
    },
    {
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      "tags": [
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      "url": "https://git.kernel.org/stable/c/e46274df1100fb0c06704195bfff5bfbd418bf64"
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  ],
  "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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