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

Vulnerability from cvelistv5 – Published: 2025-06-18 11:00 – Updated: 2025-06-18 11:00
VLAI?
Title
clk: bcm: rpi: Prevent out-of-bounds access
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
References
Impacted products
Vendor Product Version
Linux Linux Affected: 93d2725affd65686792f4b57e49ef660f3c8c0f9 , < fcae47b2d23c81603b01f56cf8db63ed64599d34 (git)
Affected: 93d2725affd65686792f4b57e49ef660f3c8c0f9 , < ff0b144d4b0a9fbd6efe4d2c0a4b6c9bae2138d2 (git)
Affected: 93d2725affd65686792f4b57e49ef660f3c8c0f9 , < c8b04b731d43366824841ebdca4ac715f95e0ea4 (git)
Affected: 93d2725affd65686792f4b57e49ef660f3c8c0f9 , < bc163555603e4ae9c817675ad80d618a4cdbfa2d (git)
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    Linux 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"
          ],
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      "cpeApplicability": [
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              "cpeMatch": [
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              "negate": false,
              "operator": "OR"
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        }
      ],
      "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": [
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          "url": "https://git.kernel.org/stable/c/fcae47b2d23c81603b01f56cf8db63ed64599d34"
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        },
        {
          "url": "https://git.kernel.org/stable/c/bc163555603e4ae9c817675ad80d618a4cdbfa2d"
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      ],
      "title": "clk: bcm: rpi: Prevent out-of-bounds access",
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  "cveMetadata": {
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    "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"
}


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