FKIE_CVE-2022-48977

Vulnerability from fkie_nvd - Published: 2024-10-21 20:15 - Updated: 2026-06-17 05:16
Severity
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: can: af_can: fix NULL pointer dereference in can_rcv_filter Analogue to commit 8aa59e355949 ("can: af_can: fix NULL pointer dereference in can_rx_register()") we need to check for a missing initialization of ml_priv in the receive path of CAN frames. Since commit 4e096a18867a ("net: introduce CAN specific pointer in the struct net_device") the check for dev->type to be ARPHRD_CAN is not sufficient anymore since bonding or tun netdevices claim to be CAN devices but do not initialize ml_priv accordingly.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0acc442309a0a1b01bcdaa135e56e6398a49439cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3982652957e8d79ac32efcb725450580650a8644Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c142cba37de29f740a3852f01f59876af8ae462aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c42221efb1159d6a3c89e96685ee38acdce86b6fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fcc63f2f7ee3038d53216edd0d8291e57c752557Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/can/af_can.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3982652957e8d79ac32efcb725450580650a8644",
              "status": "affected",
              "version": "4ac1feff6ea6495cbfd336f4438a6c6d140544a6",
              "versionType": "git"
            },
            {
              "lessThan": "c42221efb1159d6a3c89e96685ee38acdce86b6f",
              "status": "affected",
              "version": "1a5751d58b14195f763b8c1d9ef33fb8a93e95e7",
              "versionType": "git"
            },
            {
              "lessThan": "c142cba37de29f740a3852f01f59876af8ae462a",
              "status": "affected",
              "version": "4e096a18867a5a989b510f6999d9c6b6622e8f7b",
              "versionType": "git"
            },
            {
              "lessThan": "fcc63f2f7ee3038d53216edd0d8291e57c752557",
              "status": "affected",
              "version": "4e096a18867a5a989b510f6999d9c6b6622e8f7b",
              "versionType": "git"
            },
            {
              "lessThan": "0acc442309a0a1b01bcdaa135e56e6398a49439c",
              "status": "affected",
              "version": "4e096a18867a5a989b510f6999d9c6b6622e8f7b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "96340078d50a54f6a1252c62596bc44321c8bff9",
              "versionType": "git"
            },
            {
              "lessThan": "5.4.227",
              "status": "affected",
              "version": "5.4.110",
              "versionType": "semver"
            },
            {
              "lessThan": "5.10.159",
              "status": "affected",
              "version": "5.10.28",
              "versionType": "semver"
            },
            {
              "lessThan": "5.12",
              "status": "affected",
              "version": "5.11.12",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/can/af_can.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.12"
            },
            {
              "lessThan": "5.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.227",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.159",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.83",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F5FB1A61-365F-4CA9-9623-69C6889A6E49",
              "versionEndExcluding": "5.4.227",
              "versionStartIncluding": "5.4.110",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B4EFBE85-872C-4731-AD53-6DB3F3132B63",
              "versionEndExcluding": "5.10.159",
              "versionStartIncluding": "5.10.28",
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            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "5.15.83",
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              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "389392A7-81C4-4C26-884B-8C7CF0F53DA4",
              "versionEndExcluding": "6.0.13",
              "versionStartIncluding": "5.16",
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            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "E7E331DA-1FB0-4DEC-91AC-7DA69D461C11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "17F0B248-42CF-4AE6-A469-BB1BAE7F4705",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "E2422816-0C14-4B5E-A1E6-A9D776E5C49B",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "1C6E00FE-5FB9-4D20-A1A1-5A32128F9B76",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*",
              "matchCriteriaId": "35B26BE4-43A6-4A36-A7F6-5B3F572D9186",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:*",
              "matchCriteriaId": "3FFFB0B3-930D-408A-91E2-BAE0C2715D80",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:*",
              "matchCriteriaId": "8535320E-A0DB-4277-800E-D0CE5BBA59E8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc8:*:*:*:*:*:*",
              "matchCriteriaId": "21718AA4-4056-40F2-968E-BDAA465A7872",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: af_can: fix NULL pointer dereference in can_rcv_filter\n\nAnalogue to commit 8aa59e355949 (\"can: af_can: fix NULL pointer\ndereference in can_rx_register()\") we need to check for a missing\ninitialization of ml_priv in the receive path of CAN frames.\n\nSince commit 4e096a18867a (\"net: introduce CAN specific pointer in the\nstruct net_device\") the check for dev-\u003etype to be ARPHRD_CAN is not\nsufficient anymore since bonding or tun netdevices claim to be CAN\ndevices but do not initialize ml_priv accordingly."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: af_can: fix NULL pointer dereference in can_rcv_filter De manera an\u00e1loga a el commit 8aa59e355949 (\"can: af_can: fix NULL pointer dereference in can_rx_register()\"), debemos comprobar si falta una inicializaci\u00f3n de ml_priv en la ruta de recepci\u00f3n de los marcos CAN. Desde el commit 4e096a18867a (\"net: introduzca el puntero espec\u00edfico de CAN en la estructura net_device\"), la verificaci\u00f3n de que dev-\u0026gt;type sea ARPHRD_CAN ya no es suficiente ya que los dispositivos de red vinculados o sintonizados afirman ser dispositivos CAN pero no inicializan ml_priv en consecuencia."
    }
  ],
  "id": "CVE-2022-48977",
  "lastModified": "2026-06-17T05:16:45.640",
  "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-2022-48977",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-10-22T13:18:20.904853Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-10-21T20:15:09.763",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/0acc442309a0a1b01bcdaa135e56e6398a49439c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3982652957e8d79ac32efcb725450580650a8644"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c142cba37de29f740a3852f01f59876af8ae462a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c42221efb1159d6a3c89e96685ee38acdce86b6f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/fcc63f2f7ee3038d53216edd0d8291e57c752557"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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