github - ghsa-j776-f4rc-fmmx

GHSA-J776-F4RC-FMMX

Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-14 21:30

Details

In the Linux kernel, the following vulnerability has been resolved:

clk: bcm: rpi: Prevent out-of-bounds access

The while loop in raspberrypi_discover_clocks() relies on the assumption that the id of the last clock element is zero. Because this data comes from the Videocore firmware and it doesn't guarantuee such a behavior this could lead to out-of-bounds access. So fix this by providing a sentinel element.

Severity ?

7.1 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49946"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:21Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: bcm: rpi: Prevent out-of-bounds access\n\nThe while loop in raspberrypi_discover_clocks() relies on the assumption\nthat the id of the last clock element is zero. Because this data comes\nfrom the Videocore firmware and it doesn\u0027t guarantuee such a behavior\nthis could lead to out-of-bounds access. So fix this by providing\na sentinel element.",
  "id": "GHSA-j776-f4rc-fmmx",
  "modified": "2025-11-14T21:30:27Z",
  "published": "2025-06-18T12:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49946"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bc163555603e4ae9c817675ad80d618a4cdbfa2d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c8b04b731d43366824841ebdca4ac715f95e0ea4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fcae47b2d23c81603b01f56cf8db63ed64599d34"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff0b144d4b0a9fbd6efe4d2c0a4b6c9bae2138d2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49946 (GCVE-0-2022-49946)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:00 – Updated: 2025-06-18 11:00

Summary

In the Linux kernel, the following vulnerability has been resolved: clk: bcm: rpi: Prevent out-of-bounds access The while loop in raspberrypi_discover_clocks() relies on the assumption that the id of the last clock element is zero. Because this data comes from the Videocore firmware and it doesn't guarantuee such a behavior this could lead to out-of-bounds access. So fix this by providing a sentinel element.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/fcae47b2d23c81603…
	https://git.kernel.org/stable/c/ff0b144d4b0a9fbd6…
	https://git.kernel.org/stable/c/c8b04b731d4336682…
	https://git.kernel.org/stable/c/bc163555603e4ae9c…

Impacted products

Vendor

Product

Version

Linux

Affected: 93d2725affd65686792f4b57e49ef660f3c8c0f9 , < fcae47b2d23c81603b01f56cf8db63ed64599d34 (git)
Affected: 93d2725affd65686792f4b57e49ef660f3c8c0f9 , < ff0b144d4b0a9fbd6efe4d2c0a4b6c9bae2138d2 (git)
Affected: 93d2725affd65686792f4b57e49ef660f3c8c0f9 , < c8b04b731d43366824841ebdca4ac715f95e0ea4 (git)
Affected: 93d2725affd65686792f4b57e49ef660f3c8c0f9 , < bc163555603e4ae9c817675ad80d618a4cdbfa2d (git)

Linux

Affected: 5.9
Unaffected: 0 , < 5.9 (semver)
Unaffected: 5.10.142 , ≤ 5.10.* (semver)
Unaffected: 5.15.66 , ≤ 5.15.* (semver)
Unaffected: 5.19.8 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/clk/bcm/clk-raspberrypi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fcae47b2d23c81603b01f56cf8db63ed64599d34",
              "status": "affected",
              "version": "93d2725affd65686792f4b57e49ef660f3c8c0f9",
              "versionType": "git"
            },
            {
              "lessThan": "ff0b144d4b0a9fbd6efe4d2c0a4b6c9bae2138d2",
              "status": "affected",
              "version": "93d2725affd65686792f4b57e49ef660f3c8c0f9",
              "versionType": "git"
            },
            {
              "lessThan": "c8b04b731d43366824841ebdca4ac715f95e0ea4",
              "status": "affected",
              "version": "93d2725affd65686792f4b57e49ef660f3c8c0f9",
              "versionType": "git"
            },
            {
              "lessThan": "bc163555603e4ae9c817675ad80d618a4cdbfa2d",
              "status": "affected",
              "version": "93d2725affd65686792f4b57e49ef660f3c8c0f9",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/clk/bcm/clk-raspberrypi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.9"
            },
            {
              "lessThan": "5.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.142",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.66",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.142",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.66",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.8",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: bcm: rpi: Prevent out-of-bounds access\n\nThe while loop in raspberrypi_discover_clocks() relies on the assumption\nthat the id of the last clock element is zero. Because this data comes\nfrom the Videocore firmware and it doesn\u0027t guarantuee such a behavior\nthis could lead to out-of-bounds access. So fix this by providing\na sentinel element."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-18T11:00:07.966Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fcae47b2d23c81603b01f56cf8db63ed64599d34"
        },
        {
          "url": "https://git.kernel.org/stable/c/ff0b144d4b0a9fbd6efe4d2c0a4b6c9bae2138d2"
        },
        {
          "url": "https://git.kernel.org/stable/c/c8b04b731d43366824841ebdca4ac715f95e0ea4"
        },
        {
          "url": "https://git.kernel.org/stable/c/bc163555603e4ae9c817675ad80d618a4cdbfa2d"
        }
      ],
      "title": "clk: bcm: rpi: Prevent out-of-bounds access",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49946",
    "datePublished": "2025-06-18T11:00:07.966Z",
    "dateReserved": "2025-06-18T10:57:27.381Z",
    "dateUpdated": "2025-06-18T11:00:07.966Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-J776-F4RC-FMMX

CVE-2022-49946 (GCVE-0-2022-49946)

Tags

Sightings

Nomenclature