CVE-2022-49478 (GCVE-0-2022-49478)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:13 – Updated: 2026-05-11 19:00
VLAI
Title
media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init
Summary
In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init Syzbot reported that -1 is used as array index. The problem was in missing validation check. hdw->unit_number is initialized with -1 and then if init table walk fails this value remains unchanged. Since code blindly uses this member for array indexing adding sanity check is the easiest fix for that. hdw->workpoll initialization moved upper to prevent warning in __flush_work.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 19:39 UTC
CWE
  • CWE-129 - Improper Validation of Array Index
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7061 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d855497edbfbf9e19a17f4a1154bca69cb4bd9ba , < 4351bfe36aba9fa7dc9d68d498d25d41a0f45e67 (git)
Affected: d855497edbfbf9e19a17f4a1154bca69cb4bd9ba , < 2e004fe914b243db41fa96f9e583385f360ea58e (git)
Affected: d855497edbfbf9e19a17f4a1154bca69cb4bd9ba , < a3660e06675bccec4bf149c7229ea1d491ba10d7 (git)
Affected: d855497edbfbf9e19a17f4a1154bca69cb4bd9ba , < 1310fc3538dcc375a2f46ef0a438512c2ca32827 (git)
Affected: d855497edbfbf9e19a17f4a1154bca69cb4bd9ba , < a3304766d9384886e6d3092c776273526947a2e9 (git)
Affected: d855497edbfbf9e19a17f4a1154bca69cb4bd9ba , < 3309c2c574e13b21b44729f5bdbf21f60189b79a (git)
Affected: d855497edbfbf9e19a17f4a1154bca69cb4bd9ba , < f99a8b1ec0eddc2931aeaa4f490277a15b39f511 (git)
Affected: d855497edbfbf9e19a17f4a1154bca69cb4bd9ba , < 24e807541e4a9263ed928e6ae3498de3ad43bd1e (git)
Affected: d855497edbfbf9e19a17f4a1154bca69cb4bd9ba , < 471bec68457aaf981add77b4f590d65dd7da1059 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.18
Unaffected: 0 , < 2.6.18 (semver)
Unaffected: 4.9.318 , ≤ 4.9.* (semver)
Unaffected: 4.14.283 , ≤ 4.14.* (semver)
Unaffected: 4.19.247 , ≤ 4.19.* (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.121 , ≤ 5.10.* (semver)
Unaffected: 5.15.46 , ≤ 5.15.* (semver)
Unaffected: 5.17.14 , ≤ 5.17.* (semver)
Unaffected: 5.18.3 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-49478",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:39:29.496371Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-129",
                "description": "CWE-129 Improper Validation of Array Index",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T19:46:45.541Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/usb/pvrusb2/pvrusb2-hdw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4351bfe36aba9fa7dc9d68d498d25d41a0f45e67",
              "status": "affected",
              "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
              "versionType": "git"
            },
            {
              "lessThan": "2e004fe914b243db41fa96f9e583385f360ea58e",
              "status": "affected",
              "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
              "versionType": "git"
            },
            {
              "lessThan": "a3660e06675bccec4bf149c7229ea1d491ba10d7",
              "status": "affected",
              "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
              "versionType": "git"
            },
            {
              "lessThan": "1310fc3538dcc375a2f46ef0a438512c2ca32827",
              "status": "affected",
              "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
              "versionType": "git"
            },
            {
              "lessThan": "a3304766d9384886e6d3092c776273526947a2e9",
              "status": "affected",
              "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
              "versionType": "git"
            },
            {
              "lessThan": "3309c2c574e13b21b44729f5bdbf21f60189b79a",
              "status": "affected",
              "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
              "versionType": "git"
            },
            {
              "lessThan": "f99a8b1ec0eddc2931aeaa4f490277a15b39f511",
              "status": "affected",
              "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
              "versionType": "git"
            },
            {
              "lessThan": "24e807541e4a9263ed928e6ae3498de3ad43bd1e",
              "status": "affected",
              "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
              "versionType": "git"
            },
            {
              "lessThan": "471bec68457aaf981add77b4f590d65dd7da1059",
              "status": "affected",
              "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/usb/pvrusb2/pvrusb2-hdw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.18"
            },
            {
              "lessThan": "2.6.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.318",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.283",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.247",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.198",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.121",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.318",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.283",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.247",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.198",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.121",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.46",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.14",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18.3",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19",
                  "versionStartIncluding": "2.6.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init\n\nSyzbot reported that -1 is used as array index. The problem was in\nmissing validation check.\n\nhdw-\u003eunit_number is initialized with -1 and then if init table walk fails\nthis value remains unchanged. Since code blindly uses this member for\narray indexing adding sanity check is the easiest fix for that.\n\nhdw-\u003eworkpoll initialization moved upper to prevent warning in\n__flush_work."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:00:40.240Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4351bfe36aba9fa7dc9d68d498d25d41a0f45e67"
        },
        {
          "url": "https://git.kernel.org/stable/c/2e004fe914b243db41fa96f9e583385f360ea58e"
        },
        {
          "url": "https://git.kernel.org/stable/c/a3660e06675bccec4bf149c7229ea1d491ba10d7"
        },
        {
          "url": "https://git.kernel.org/stable/c/1310fc3538dcc375a2f46ef0a438512c2ca32827"
        },
        {
          "url": "https://git.kernel.org/stable/c/a3304766d9384886e6d3092c776273526947a2e9"
        },
        {
          "url": "https://git.kernel.org/stable/c/3309c2c574e13b21b44729f5bdbf21f60189b79a"
        },
        {
          "url": "https://git.kernel.org/stable/c/f99a8b1ec0eddc2931aeaa4f490277a15b39f511"
        },
        {
          "url": "https://git.kernel.org/stable/c/24e807541e4a9263ed928e6ae3498de3ad43bd1e"
        },
        {
          "url": "https://git.kernel.org/stable/c/471bec68457aaf981add77b4f590d65dd7da1059"
        }
      ],
      "title": "media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49478",
    "datePublished": "2025-02-26T02:13:19.330Z",
    "dateReserved": "2025-02-26T02:08:31.581Z",
    "dateUpdated": "2026-05-11T19:00:40.240Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-49478",
      "date": "2026-10-24",
      "epss": "0.00292",
      "percentile": "0.20711"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/media/usb/pvrusb2/pvrusb2-hdw.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "4351bfe36aba9fa7dc9d68d498d25d41a0f45e67",
                    "status": "affected",
                    "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "2e004fe914b243db41fa96f9e583385f360ea58e",
                    "status": "affected",
                    "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "a3660e06675bccec4bf149c7229ea1d491ba10d7",
                    "status": "affected",
                    "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "1310fc3538dcc375a2f46ef0a438512c2ca32827",
                    "status": "affected",
                    "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "a3304766d9384886e6d3092c776273526947a2e9",
                    "status": "affected",
                    "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "3309c2c574e13b21b44729f5bdbf21f60189b79a",
                    "status": "affected",
                    "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "f99a8b1ec0eddc2931aeaa4f490277a15b39f511",
                    "status": "affected",
                    "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "24e807541e4a9263ed928e6ae3498de3ad43bd1e",
                    "status": "affected",
                    "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "471bec68457aaf981add77b4f590d65dd7da1059",
                    "status": "affected",
                    "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/media/usb/pvrusb2/pvrusb2-hdw.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "2.6.18"
                  },
                  {
                    "lessThan": "2.6.18",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.9.*",
                    "status": "unaffected",
                    "version": "4.9.318",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.14.*",
                    "status": "unaffected",
                    "version": "4.14.283",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.19.*",
                    "status": "unaffected",
                    "version": "4.19.247",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.4.*",
                    "status": "unaffected",
                    "version": "5.4.198",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.121",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.46",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.17.*",
                    "status": "unaffected",
                    "version": "5.17.14",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.18.*",
                    "status": "unaffected",
                    "version": "5.18.3",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "5.19",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "F4C7C7D7-D7D3-4358-818B-49B2982DB29A",
                    "versionEndExcluding": "4.9.318",
                    "versionStartIncluding": "2.6.18",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D6823775-2653-4644-A0D4-4E6E68F10C65",
                    "versionEndExcluding": "4.14.283",
                    "versionStartIncluding": "4.10",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B8CFA0F4-2D75-41F4-9753-87944A08B53B",
                    "versionEndExcluding": "4.19.247",
                    "versionStartIncluding": "4.15",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "3EC49633-14DE-4EBD-BB80-76AE2E3EABB9",
                    "versionEndExcluding": "5.4.198",
                    "versionStartIncluding": "4.20",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "34ACD872-E5BC-401C-93D5-B357A62426E0",
                    "versionEndExcluding": "5.10.121",
                    "versionStartIncluding": "5.5",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "20D41697-0E8B-4B7D-8842-F17BF2AA21E1",
                    "versionEndExcluding": "5.15.46",
                    "versionStartIncluding": "5.11",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "15E2DD33-2255-4B76-9C15-04FF8CBAB252",
                    "versionEndExcluding": "5.17.14",
                    "versionStartIncluding": "5.16",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "8E122216-2E9E-4B3E-B7B8-D575A45BA3C2",
                    "versionEndExcluding": "5.18.3",
                    "versionStartIncluding": "5.18",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init\n\nSyzbot reported that -1 is used as array index. The problem was in\nmissing validation check.\n\nhdw-\u003eunit_number is initialized with -1 and then if init table walk fails\nthis value remains unchanged. Since code blindly uses this member for\narray indexing adding sanity check is the easiest fix for that.\n\nhdw-\u003eworkpoll initialization moved upper to prevent warning in\n__flush_work."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: media: pvrusb2: arreglo array-index-out-of-bounds en pvr2_i2c_core_init Syzbot inform\u00f3 que se usa -1 como \u00edndice de matriz. El problema estaba en la falta de verificaci\u00f3n de validaci\u00f3n. hdw-\u0026gt;unit_number se inicializa con -1 y luego, si falla el recorrido de tabla init, este valor permanece sin cambios. Dado que el c\u00f3digo usa ciegamente este miembro para la indexaci\u00f3n de matrices, agregar una verificaci\u00f3n de cordura es la soluci\u00f3n m\u00e1s f\u00e1cil para eso. La inicializaci\u00f3n de hdw-\u0026gt;workpoll se movi\u00f3 hacia arriba para evitar la advertencia en __flush_work."
          }
        ],
        "id": "CVE-2022-49478",
        "lastModified": "2026-06-17T05:18:10.720",
        "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"
            },
            {
              "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": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2022-49478",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:39:29.496371Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2025-02-26T07:01:24.050",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/1310fc3538dcc375a2f46ef0a438512c2ca32827"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/24e807541e4a9263ed928e6ae3498de3ad43bd1e"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/2e004fe914b243db41fa96f9e583385f360ea58e"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/3309c2c574e13b21b44729f5bdbf21f60189b79a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/4351bfe36aba9fa7dc9d68d498d25d41a0f45e67"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/471bec68457aaf981add77b4f590d65dd7da1059"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/a3304766d9384886e6d3092c776273526947a2e9"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/a3660e06675bccec4bf149c7229ea1d491ba10d7"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f99a8b1ec0eddc2931aeaa4f490277a15b39f511"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-129"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-129"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T21:08:47+00:00",
      "cve": "CVE-2022-49478",
      "id": "CVE-2022-49478",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_affected": "76",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49478.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "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"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2022-49478",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-10-01T19:39:29.496371Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-129",
                    "description": "CWE-129 Improper Validation of Array Index",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-10-01T16:48:14.240Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/media/usb/pvrusb2/pvrusb2-hdw.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "4351bfe36aba9fa7dc9d68d498d25d41a0f45e67",
                  "status": "affected",
                  "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                  "versionType": "git"
                },
                {
                  "lessThan": "2e004fe914b243db41fa96f9e583385f360ea58e",
                  "status": "affected",
                  "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                  "versionType": "git"
                },
                {
                  "lessThan": "a3660e06675bccec4bf149c7229ea1d491ba10d7",
                  "status": "affected",
                  "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                  "versionType": "git"
                },
                {
                  "lessThan": "1310fc3538dcc375a2f46ef0a438512c2ca32827",
                  "status": "affected",
                  "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                  "versionType": "git"
                },
                {
                  "lessThan": "a3304766d9384886e6d3092c776273526947a2e9",
                  "status": "affected",
                  "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                  "versionType": "git"
                },
                {
                  "lessThan": "3309c2c574e13b21b44729f5bdbf21f60189b79a",
                  "status": "affected",
                  "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                  "versionType": "git"
                },
                {
                  "lessThan": "f99a8b1ec0eddc2931aeaa4f490277a15b39f511",
                  "status": "affected",
                  "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                  "versionType": "git"
                },
                {
                  "lessThan": "24e807541e4a9263ed928e6ae3498de3ad43bd1e",
                  "status": "affected",
                  "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                  "versionType": "git"
                },
                {
                  "lessThan": "471bec68457aaf981add77b4f590d65dd7da1059",
                  "status": "affected",
                  "version": "d855497edbfbf9e19a17f4a1154bca69cb4bd9ba",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/media/usb/pvrusb2/pvrusb2-hdw.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "2.6.18"
                },
                {
                  "lessThan": "2.6.18",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.9.*",
                  "status": "unaffected",
                  "version": "4.9.318",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.14.*",
                  "status": "unaffected",
                  "version": "4.14.283",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.19.*",
                  "status": "unaffected",
                  "version": "4.19.247",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.4.*",
                  "status": "unaffected",
                  "version": "5.4.198",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.121",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.46",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.17.*",
                  "status": "unaffected",
                  "version": "5.17.14",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.18.*",
                  "status": "unaffected",
                  "version": "5.18.3",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "5.19",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.9.318",
                      "versionStartIncluding": "2.6.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.14.283",
                      "versionStartIncluding": "2.6.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.19.247",
                      "versionStartIncluding": "2.6.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.4.198",
                      "versionStartIncluding": "2.6.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.121",
                      "versionStartIncluding": "2.6.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.46",
                      "versionStartIncluding": "2.6.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.17.14",
                      "versionStartIncluding": "2.6.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.18.3",
                      "versionStartIncluding": "2.6.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.19",
                      "versionStartIncluding": "2.6.18",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init\n\nSyzbot reported that -1 is used as array index. The problem was in\nmissing validation check.\n\nhdw-\u003eunit_number is initialized with -1 and then if init table walk fails\nthis value remains unchanged. Since code blindly uses this member for\narray indexing adding sanity check is the easiest fix for that.\n\nhdw-\u003eworkpoll initialization moved upper to prevent warning in\n__flush_work."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T19:00:40.240Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/4351bfe36aba9fa7dc9d68d498d25d41a0f45e67"
            },
            {
              "url": "https://git.kernel.org/stable/c/2e004fe914b243db41fa96f9e583385f360ea58e"
            },
            {
              "url": "https://git.kernel.org/stable/c/a3660e06675bccec4bf149c7229ea1d491ba10d7"
            },
            {
              "url": "https://git.kernel.org/stable/c/1310fc3538dcc375a2f46ef0a438512c2ca32827"
            },
            {
              "url": "https://git.kernel.org/stable/c/a3304766d9384886e6d3092c776273526947a2e9"
            },
            {
              "url": "https://git.kernel.org/stable/c/3309c2c574e13b21b44729f5bdbf21f60189b79a"
            },
            {
              "url": "https://git.kernel.org/stable/c/f99a8b1ec0eddc2931aeaa4f490277a15b39f511"
            },
            {
              "url": "https://git.kernel.org/stable/c/24e807541e4a9263ed928e6ae3498de3ad43bd1e"
            },
            {
              "url": "https://git.kernel.org/stable/c/471bec68457aaf981add77b4f590d65dd7da1059"
            }
          ],
          "title": "media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-49478",
        "datePublished": "2025-02-26T02:13:19.330Z",
        "dateReserved": "2025-02-26T02:08:31.581Z",
        "dateUpdated": "2026-05-11T19:00:40.240Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    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.