CVE-2024-38573 cppc_cpufreq: Fix possible null pointer dereference

2024-06-1913:35:38

Linux

github.com

cppc_cpufreq

null pointer

linux kernel

vulnerability

svace

linux verification center

AI Score

6.9

Confidence

Low

SSVC

Exploitation

none

Automatable

yes

Technical Impact

partial

JSON

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

cppc_cpufreq: Fix possible null pointer dereference

cppc_cpufreq_get_rate() and hisi_cppc_cpufreq_get_rate() can be called from
different places with various parameters. So cpufreq_cpu_get() can return
null as ‘policy’ in some circumstances.
Fix this bug by adding null return check.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

CNA Affected

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "a28b2bfc099c",
        "lessThan": "9a185cc5a79b",
        "versionType": "git"
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      {
        "status": "affected",
        "version": "a28b2bfc099c",
        "lessThan": "769c4f355b79",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a28b2bfc099c",
        "lessThan": "f84b9b25d045",
        "versionType": "git"
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      {
        "status": "affected",
        "version": "a28b2bfc099c",
        "lessThan": "b18daa4ec727",
        "versionType": "git"
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      {
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        "version": "a28b2bfc099c",
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        "versionType": "git"
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      {
        "status": "affected",
        "version": "a28b2bfc099c",
        "lessThan": "cf7de25878a1",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/cpufreq/cppc_cpufreq.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.11"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.11",
        "versionType": "custom"
      },
      {
        "status": "unaffected",
        "version": "5.15.161",
        "versionType": "custom",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.93",
        "versionType": "custom",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.33",
        "versionType": "custom",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.8.12",
        "versionType": "custom",
        "lessThanOrEqual": "6.8.*"
      },
      {
        "status": "unaffected",
        "version": "6.9.3",
        "versionType": "custom",
        "lessThanOrEqual": "6.9.*"
      },
      {
        "status": "unaffected",
        "version": "6.10",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/cpufreq/cppc_cpufreq.c"
    ],
    "defaultStatus": "affected"
  }
]

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
    ],
    "vendor": "linux",
    "product": "linux_kernel",
    "versions": [
      {
        "status": "affected",
        "version": "a28b2bfc099c",
        "lessThan": "9a185cc5a79b",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "cpes": [
      "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
    ],
    "vendor": "linux",
    "product": "linux_kernel",
    "versions": [
      {
        "status": "affected",
        "version": "a28b2bfc099c",
        "lessThan": "769c4f355b79",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "cpes": [
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    ],
    "vendor": "linux",
    "product": "linux_kernel",
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      }
    ],
    "defaultStatus": "unknown"
  },
  {
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    ],
    "vendor": "linux",
    "product": "linux_kernel",
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        "version": "a28b2bfc099c",
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        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
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    ],
    "vendor": "linux",
    "product": "linux_kernel",
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        "status": "affected",
        "version": "a28b2bfc099c",
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    ],
    "defaultStatus": "unknown"
  },
  {
    "cpes": [
      "cpe:2.3:o:linux:acrn:*:*:*:*:*:*:*:*"
    ],
    "vendor": "linux",
    "product": "acrn",
    "versions": [
      {
        "status": "affected",
        "version": "a28b2bfc099c",
        "lessThan": "cf7de25878a1",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "cpes": [
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    ],
    "vendor": "linux",
    "product": "linux_kernel",
    "versions": [
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      }
    ],
    "defaultStatus": "unknown"
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    "vendor": "linux",
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  },
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    "vendor": "linux",
    "product": "linux_kernel",
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      {
        "status": "unaffected",
        "version": "5.15.161",
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        "lessThanOrEqual": "5.16"
      }
    ],
    "defaultStatus": "unknown"
  },
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    "vendor": "linux",
    "product": "linux_kernel",
    "versions": [
      {
        "status": "unaffected",
        "version": "6.1.93",
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    "defaultStatus": "unknown"
  },
  {
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    "vendor": "linux",
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      }
    ],
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  },
  {
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    ],
    "vendor": "linux",
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    "versions": [
      {
        "status": "unaffected",
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      }
    ],
    "defaultStatus": "unknown"
  },
  {
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    ],
    "vendor": "linux",
    "product": "linux_kernel",
    "versions": [
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      }
    ],
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  },
  {
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    ],
    "vendor": "linux",
    "product": "linux_kernel",
    "versions": [
      {
        "status": "unaffected",
        "version": "6.10-rc1"
      }
    ],
    "defaultStatus": "unknown"
  }
]