CVE-2021-47289 (GCVE-0-2021-47289)

Vulnerability from cvelistv5 – Published: 2024-05-21 14:35 – Updated: 2025-05-04 07:07
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: ACPI: fix NULL pointer dereference Commit 71f642833284 ("ACPI: utils: Fix reference counting in for_each_acpi_dev_match()") started doing "acpi_dev_put()" on a pointer that was possibly NULL. That fails miserably, because that helper inline function is not set up to handle that case. Just make acpi_dev_put() silently accept a NULL pointer, rather than calling down to put_device() with an invalid offset off that NULL pointer.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 38f54217b423c0101d03a00feec6fb8ec608b12e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < cae3fa3d8165761f3000f523b11cfa1cd35206bc (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ccf23a0888077a25a0793a746c3941db2a7562e4 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < fc68f42aa737dc15e7665a4101d4168aadb8e4c4 (git)
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    Linux Linux Unaffected: 5.4.139 , ≤ 5.4.* (semver)
Unaffected: 5.10.57 , ≤ 5.10.* (semver)
Unaffected: 5.13.6 , ≤ 5.13.* (semver)
Unaffected: 5.14 , ≤ * (original_commit_for_fix)
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      "cveMetadata": "{\"cveId\": \"CVE-2021-47289\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-12-19T07:39:04.376Z\", \"dateReserved\": \"2024-05-21T13:27:52.129Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-21T14:35:14.740Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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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.