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CVE-2022-48908 (GCVE-0-2022-48908)

Vulnerability from cvelistv5 – Published: 2024-08-22 01:30 – Updated: 2026-05-11 18:49
VLAI
Title
net: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()
Summary
In the Linux kernel, the following vulnerability has been resolved: net: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe() During driver initialization, the pointer of card info, i.e. the variable 'ci' is required. However, the definition of 'com20020pci_id_table' reveals that this field is empty for some devices, which will cause null pointer dereference when initializing these devices. The following log reveals it: [ 3.973806] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 3.973819] RIP: 0010:com20020pci_probe+0x18d/0x13e0 [com20020_pci] [ 3.975181] Call Trace: [ 3.976208] local_pci_probe+0x13f/0x210 [ 3.977248] pci_device_probe+0x34c/0x6d0 [ 3.977255] ? pci_uevent+0x470/0x470 [ 3.978265] really_probe+0x24c/0x8d0 [ 3.978273] __driver_probe_device+0x1b3/0x280 [ 3.979288] driver_probe_device+0x50/0x370 Fix this by checking whether the 'ci' is a null pointer first.
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 2024-09-10 15:34 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f , < 8e3bc7c5bbf87e86e9cd652ca2a9166942d86206 (git)
Affected: 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f , < b1ee6b9340a38bdb9e5c90f0eac5b22b122c3049 (git)
Affected: 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f , < b838add93e1dd98210482dc433768daaf752bdef (git)
Affected: 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f , < e50c589678e50f8d574612e473ca60ef45190896 (git)
Affected: 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f , < 5f394102ee27dbf051a4e283390cd8d1759dacea (git)
Affected: 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f , < ea372aab54903310756217d81610901a8e66cb7d (git)
Affected: 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f , < ca0bdff4249a644f2ca7a49d410d95b8dacf1f72 (git)
Affected: 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f , < bd6f1fd5d33dfe5d1b4f2502d3694a7cc13f166d (git)
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Linux Linux Affected: 3.18
Unaffected: 0 , < 3.18 (semver)
Unaffected: 4.9.305 , ≤ 4.9.* (semver)
Unaffected: 4.14.270 , ≤ 4.14.* (semver)
Unaffected: 4.19.233 , ≤ 4.19.* (semver)
Unaffected: 5.4.183 , ≤ 5.4.* (semver)
Unaffected: 5.10.104 , ≤ 5.10.* (semver)
Unaffected: 5.15.27 , ≤ 5.15.* (semver)
Unaffected: 5.16.13 , ≤ 5.16.* (semver)
Unaffected: 5.17 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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                    "matchCriteriaId": "B2D2677C-5389-4AE9-869D-0F881E80D923",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc5:*:*:*:*:*:*",
                    "matchCriteriaId": "EFA3917C-C322-4D92-912D-ECE45B2E7416",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc6:*:*:*:*:*:*",
                    "matchCriteriaId": "BED18363-5ABC-4639-8BBA-68E771E5BB3F",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()\n\nDuring driver initialization, the pointer of card info, i.e. the\nvariable \u0027ci\u0027 is required. However, the definition of\n\u0027com20020pci_id_table\u0027 reveals that this field is empty for some\ndevices, which will cause null pointer dereference when initializing\nthese devices.\n\nThe following log reveals it:\n\n[    3.973806] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f]\n[    3.973819] RIP: 0010:com20020pci_probe+0x18d/0x13e0 [com20020_pci]\n[    3.975181] Call Trace:\n[    3.976208]  local_pci_probe+0x13f/0x210\n[    3.977248]  pci_device_probe+0x34c/0x6d0\n[    3.977255]  ? pci_uevent+0x470/0x470\n[    3.978265]  really_probe+0x24c/0x8d0\n[    3.978273]  __driver_probe_device+0x1b3/0x280\n[    3.979288]  driver_probe_device+0x50/0x370\n\nFix this by checking whether the \u0027ci\u0027 is a null pointer first."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: arcnet: com20020: corrija null-ptr-deref en com20020pci_probe() Durante la inicializaci\u00f3n del controlador, se requiere el puntero de informaci\u00f3n de la tarjeta, es decir, la variable \u0027ci\u0027. Sin embargo, la definici\u00f3n de \u0027com20020pci_id_table\u0027 revela que este campo est\u00e1 vac\u00edo para algunos dispositivos, lo que provocar\u00e1 una desreferencia del puntero nulo al inicializar estos dispositivos. El siguiente registro lo revela: [3.973806] KASAN: null-ptr-deref en el rango [0x0000000000000028-0x000000000000002f] [3.973819] RIP: 0010:com20020pci_probe+0x18d/0x13e0 [com20020_p ci] [3.975181] Seguimiento de llamadas: [3.976208] local_pci_probe+0x13f /0x210 [3.977248] pci_device_probe+0x34c/0x6d0 [3.977255]? pci_uevent+0x470/0x470 [3.978265] very_probe+0x24c/0x8d0 [3.978273] __driver_probe_device+0x1b3/0x280 [3.979288] driver_probe_device+0x50/0x370 Solucione este problema comprobando primero si el \u0027ci\u0027 es un puntero nulo."
          }
        ],
        "id": "CVE-2022-48908",
        "lastModified": "2026-06-17T05:16:34.930",
        "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-2022-48908",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:34:10.946683Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2024-08-22T02:15:05.247",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/5f394102ee27dbf051a4e283390cd8d1759dacea"
          },
          {
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            "tags": [
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            "url": "https://git.kernel.org/stable/c/8e3bc7c5bbf87e86e9cd652ca2a9166942d86206"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
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            "url": "https://git.kernel.org/stable/c/b1ee6b9340a38bdb9e5c90f0eac5b22b122c3049"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/b838add93e1dd98210482dc433768daaf752bdef"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/bd6f1fd5d33dfe5d1b4f2502d3694a7cc13f166d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ca0bdff4249a644f2ca7a49d410d95b8dacf1f72"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/e50c589678e50f8d574612e473ca60ef45190896"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ea372aab54903310756217d81610901a8e66cb7d"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-02-02T10:58:12+00:00",
      "cve": "CVE-2022-48908",
      "id": "CVE-2022-48908",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-48908.json",
      "version": "3"
    },
    "vulnrichment": {
      "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-2022-48908",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-09-10T15:34:10.946683Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-476",
                    "description": "CWE-476 NULL Pointer Dereference",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-09-11T12:42:15.977Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/arcnet/com20020-pci.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "8e3bc7c5bbf87e86e9cd652ca2a9166942d86206",
                  "status": "affected",
                  "version": "8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f",
                  "versionType": "git"
                },
                {
                  "lessThan": "b1ee6b9340a38bdb9e5c90f0eac5b22b122c3049",
                  "status": "affected",
                  "version": "8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f",
                  "versionType": "git"
                },
                {
                  "lessThan": "b838add93e1dd98210482dc433768daaf752bdef",
                  "status": "affected",
                  "version": "8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f",
                  "versionType": "git"
                },
                {
                  "lessThan": "e50c589678e50f8d574612e473ca60ef45190896",
                  "status": "affected",
                  "version": "8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f",
                  "versionType": "git"
                },
                {
                  "lessThan": "5f394102ee27dbf051a4e283390cd8d1759dacea",
                  "status": "affected",
                  "version": "8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f",
                  "versionType": "git"
                },
                {
                  "lessThan": "ea372aab54903310756217d81610901a8e66cb7d",
                  "status": "affected",
                  "version": "8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f",
                  "versionType": "git"
                },
                {
                  "lessThan": "ca0bdff4249a644f2ca7a49d410d95b8dacf1f72",
                  "status": "affected",
                  "version": "8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f",
                  "versionType": "git"
                },
                {
                  "lessThan": "bd6f1fd5d33dfe5d1b4f2502d3694a7cc13f166d",
                  "status": "affected",
                  "version": "8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/arcnet/com20020-pci.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "3.18"
                },
                {
                  "lessThan": "3.18",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.9.*",
                  "status": "unaffected",
                  "version": "4.9.305",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.14.*",
                  "status": "unaffected",
                  "version": "4.14.270",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.19.*",
                  "status": "unaffected",
                  "version": "4.19.233",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.4.*",
                  "status": "unaffected",
                  "version": "5.4.183",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.104",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.27",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.16.*",
                  "status": "unaffected",
                  "version": "5.16.13",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "5.17",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.9.305",
                      "versionStartIncluding": "3.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.14.270",
                      "versionStartIncluding": "3.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.19.233",
                      "versionStartIncluding": "3.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.4.183",
                      "versionStartIncluding": "3.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.104",
                      "versionStartIncluding": "3.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.27",
                      "versionStartIncluding": "3.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.16.13",
                      "versionStartIncluding": "3.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.17",
                      "versionStartIncluding": "3.18",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()\n\nDuring driver initialization, the pointer of card info, i.e. the\nvariable \u0027ci\u0027 is required. However, the definition of\n\u0027com20020pci_id_table\u0027 reveals that this field is empty for some\ndevices, which will cause null pointer dereference when initializing\nthese devices.\n\nThe following log reveals it:\n\n[    3.973806] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f]\n[    3.973819] RIP: 0010:com20020pci_probe+0x18d/0x13e0 [com20020_pci]\n[    3.975181] Call Trace:\n[    3.976208]  local_pci_probe+0x13f/0x210\n[    3.977248]  pci_device_probe+0x34c/0x6d0\n[    3.977255]  ? pci_uevent+0x470/0x470\n[    3.978265]  really_probe+0x24c/0x8d0\n[    3.978273]  __driver_probe_device+0x1b3/0x280\n[    3.979288]  driver_probe_device+0x50/0x370\n\nFix this by checking whether the \u0027ci\u0027 is a null pointer first."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-05-04T08:25:53.403Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/8e3bc7c5bbf87e86e9cd652ca2a9166942d86206"
            },
            {
              "url": "https://git.kernel.org/stable/c/b1ee6b9340a38bdb9e5c90f0eac5b22b122c3049"
            },
            {
              "url": "https://git.kernel.org/stable/c/b838add93e1dd98210482dc433768daaf752bdef"
            },
            {
              "url": "https://git.kernel.org/stable/c/e50c589678e50f8d574612e473ca60ef45190896"
            },
            {
              "url": "https://git.kernel.org/stable/c/5f394102ee27dbf051a4e283390cd8d1759dacea"
            },
            {
              "url": "https://git.kernel.org/stable/c/ea372aab54903310756217d81610901a8e66cb7d"
            },
            {
              "url": "https://git.kernel.org/stable/c/ca0bdff4249a644f2ca7a49d410d95b8dacf1f72"
            },
            {
              "url": "https://git.kernel.org/stable/c/bd6f1fd5d33dfe5d1b4f2502d3694a7cc13f166d"
            }
          ],
          "title": "net: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-48908",
        "datePublished": "2024-08-22T01:30:49.441Z",
        "dateReserved": "2024-08-21T06:06:23.293Z",
        "dateUpdated": "2025-10-01T17:25:00.573Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.


Detection rules are retrieved from Rulezet.


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.