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clk: Fix clk_core_get NULL dereference

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: clk: Fix clk_core_get NULL dereference It is possible for clk_core_get to dereference a NULL in the following sequence: clk_core_get() of_clk_get_hw_from_clkspec() __of_clk_get_hw_from_provider() __clk_get_hw() __clk_get_hw() can return NULL which is dereferenced by clk_core_get() at hw->core. Prior to commit dde4eff47c82 ("clk: Look for parents with clkdev based clk_lookups") the check IS_ERR_OR_NULL() was performed which would have caught the NULL. Reading the description of this function it talks about returning NULL but that cannot be so at the moment. Update the function to check for hw before dereferencing it and return NULL if hw is NULL.

Announced Source revision 1
Original source ↗

CVE-2024-27038

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2024-27038

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "dde4eff47c82c52a72af333d9e55370eee6d95d6",
        "lessThan": "d7ae7d1265686b55832a445b1db8cdd69738ac07",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "dde4eff47c82c52a72af333d9e55370eee6d95d6",
        "lessThan": "239174535dba11f7b83de0eaaa27909024f8c185",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "dde4eff47c82c52a72af333d9e55370eee6d95d6",
        "lessThan": "0efb9ef6fb95384ba631d6819e66f10392aabfa2",
        "versionType": "git"
      },
      {
        "status": "affected",
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        "lessThan": "a8b2b26fdd011ebe36d68a9a321ca45801685959",
        "versionType": "git"
      },
      {
        "status": "affected",
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        "lessThan": "a5d9b1aa61b401867b9066d54086b3e4ee91f8ed",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "dde4eff47c82c52a72af333d9e55370eee6d95d6",
        "lessThan": "c554badcae9c45b737a22d23454170c6020b90e6",
        "versionType": "git"
      },
      {
        "status": "affected",
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        "lessThan": "6f073b24a9e2becd25ac4505a9780a87e621bb51",
        "versionType": "git"
      },
      {
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        "lessThan": "e97fe4901e0f59a0bfd524578fe3768f8ca42428",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/clk/clk.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.2"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.2",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.4.273",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.214",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.153",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.83",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.23",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.7.11",
        "versionType": "semver",
        "lessThanOrEqual": "6.7.*"
      },
      {
        "status": "unaffected",
        "version": "6.8.2",
        "versionType": "semver",
        "lessThanOrEqual": "6.8.*"
      },
      {
        "status": "unaffected",
        "version": "6.9",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/clk/clk.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2024-27038

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#26481 · Revision 1
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Publisher date
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