CVE-2022-49145 (GCVE-0-2022-49145)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:55 – Updated: 2026-05-11 18:53
VLAI
Title
ACPI: CPPC: Avoid out of bounds access when parsing _CPC data
Summary
In the Linux kernel, the following vulnerability has been resolved: ACPI: CPPC: Avoid out of bounds access when parsing _CPC data If the NumEntries field in the _CPC return package is less than 2, do not attempt to access the "Revision" element of that package, because it may not be present then. BugLink: https://lore.kernel.org/lkml/20220322143534.GC32582@xsang-OptiPlex-9020/
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 337aadff8e4567e39669e07d9a88b789d78458b5 , < b3f15609ffa521de12244cd6af24002030dda3f5 (git)
Affected: 337aadff8e4567e39669e07d9a88b789d78458b5 , < d208ea44e25b31db5a4d5e8c31df51787a3e9303 (git)
Affected: 337aadff8e4567e39669e07d9a88b789d78458b5 , < 28d5387c1994f5e1e0d41b30a1f3dd6e1f609252 (git)
Affected: 337aadff8e4567e39669e07d9a88b789d78458b5 , < cb249f8c00f40dba83b7da8207ac14ca46e9ec9e (git)
Affected: 337aadff8e4567e39669e07d9a88b789d78458b5 , < e5b681822cac1f8093759b02e16c06b2c64b6788 (git)
Affected: 337aadff8e4567e39669e07d9a88b789d78458b5 , < 97b5593fd1b182b3fdb180b6bbe64ec09669988b (git)
Affected: 337aadff8e4567e39669e07d9a88b789d78458b5 , < b80b19b32a432c9eee1cd200ef7aaddf608f54d1 (git)
Affected: 337aadff8e4567e39669e07d9a88b789d78458b5 , < d7339f2a3938fb56b5f28d53f5345900b5fa0e74 (git)
Affected: 337aadff8e4567e39669e07d9a88b789d78458b5 , < 40d8abf364bcab23bc715a9221a3c8623956257b (git)
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Linux Linux Affected: 4.4
Unaffected: 0 , < 4.4 (semver)
Unaffected: 4.9.311 , ≤ 4.9.* (semver)
Unaffected: 4.14.276 , ≤ 4.14.* (semver)
Unaffected: 4.19.238 , ≤ 4.19.* (semver)
Unaffected: 5.4.189 , ≤ 5.4.* (semver)
Unaffected: 5.10.110 , ≤ 5.10.* (semver)
Unaffected: 5.15.33 , ≤ 5.15.* (semver)
Unaffected: 5.16.19 , ≤ 5.16.* (semver)
Unaffected: 5.17.2 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/acpi/cppc_acpi.c"
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              "versionType": "git"
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          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.4"
            },
            {
              "lessThan": "4.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.311",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.276",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.238",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
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            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: CPPC: Avoid out of bounds access when parsing _CPC data\n\nIf the NumEntries field in the _CPC return package is less than 2, do\nnot attempt to access the \"Revision\" element of that package, because\nit may not be present then.\n\nBugLink: https://lore.kernel.org/lkml/20220322143534.GC32582@xsang-OptiPlex-9020/"
        }
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        }
      ],
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49145",
    "datePublished": "2025-02-26T01:55:14.355Z",
    "dateReserved": "2025-02-26T01:49:39.270Z",
    "dateUpdated": "2026-05-11T18:53:59.526Z",
    "state": "PUBLISHED"
  },
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      "date": "2026-10-03",
      "epss": "0.00281",
      "percentile": "0.18727"
    }
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}



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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

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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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • 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.


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