CVE-2021-46962 (GCVE-0-2021-46962)

Vulnerability from cvelistv5 – Published: 2024-02-27 18:47 – Updated: 2025-05-04 07:01
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: mmc: uniphier-sd: Fix a resource leak in the remove function A 'tmio_mmc_host_free()' call is missing in the remove function, in order to balance a 'tmio_mmc_host_alloc()' call in the probe. This is done in the error handling path of the probe, but not in the remove function. Add the missing call.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 3fd784f745dd1747863775a99ec749619ee6759c , < 0d8941b9b2d3e7b3481fdf43b1a6189d162175b7 (git)
Affected: 3fd784f745dd1747863775a99ec749619ee6759c , < 25ac6ce65f1ab458982d15ec1caf441acd37106a (git)
Affected: 3fd784f745dd1747863775a99ec749619ee6759c , < ebe0f12cf4c044f812c6d17011531582f9ac8bb3 (git)
Affected: 3fd784f745dd1747863775a99ec749619ee6759c , < d6e7fda496978f2763413b5523557b38dc2bf6c2 (git)
Affected: 3fd784f745dd1747863775a99ec749619ee6759c , < e29c84857e2d51aa017ce04284b962742fb97d9e (git)
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    Linux Linux Affected: 4.20
Unaffected: 0 , < 4.20 (semver)
Unaffected: 5.4.118 , ≤ 5.4.* (semver)
Unaffected: 5.10.36 , ≤ 5.10.* (semver)
Unaffected: 5.11.20 , ≤ 5.11.* (semver)
Unaffected: 5.12.3 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
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\"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-03-05T20:16:05.784060Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-23T19:01:15.852Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"title\": \"mmc: uniphier-sd: Fix a resource leak in the remove function\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3fd784f745dd1747863775a99ec749619ee6759c\", \"lessThan\": \"0d8941b9b2d3e7b3481fdf43b1a6189d162175b7\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3fd784f745dd1747863775a99ec749619ee6759c\", \"lessThan\": \"25ac6ce65f1ab458982d15ec1caf441acd37106a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3fd784f745dd1747863775a99ec749619ee6759c\", \"lessThan\": \"ebe0f12cf4c044f812c6d17011531582f9ac8bb3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3fd784f745dd1747863775a99ec749619ee6759c\", \"lessThan\": \"d6e7fda496978f2763413b5523557b38dc2bf6c2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3fd784f745dd1747863775a99ec749619ee6759c\", \"lessThan\": \"e29c84857e2d51aa017ce04284b962742fb97d9e\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/mmc/host/uniphier-sd.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.20\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.20\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.118\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.36\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.11.20\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.11.*\"}, {\"status\": \"unaffected\", \"version\": \"5.12.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.12.*\"}, {\"status\": \"unaffected\", \"version\": \"5.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/mmc/host/uniphier-sd.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/0d8941b9b2d3e7b3481fdf43b1a6189d162175b7\"}, {\"url\": \"https://git.kernel.org/stable/c/25ac6ce65f1ab458982d15ec1caf441acd37106a\"}, {\"url\": \"https://git.kernel.org/stable/c/ebe0f12cf4c044f812c6d17011531582f9ac8bb3\"}, {\"url\": \"https://git.kernel.org/stable/c/d6e7fda496978f2763413b5523557b38dc2bf6c2\"}, {\"url\": \"https://git.kernel.org/stable/c/e29c84857e2d51aa017ce04284b962742fb97d9e\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmmc: uniphier-sd: Fix a resource leak in the remove function\\n\\nA \u0027tmio_mmc_host_free()\u0027 call is missing in the remove function, in order\\nto balance a \u0027tmio_mmc_host_alloc()\u0027 call in the probe.\\nThis is done in the error handling path of the probe, but not in the remove\\nfunction.\\n\\nAdd the missing call.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.118\", \"versionStartIncluding\": \"4.20\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.36\", \"versionStartIncluding\": \"4.20\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.11.20\", \"versionStartIncluding\": \"4.20\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.12.3\", \"versionStartIncluding\": \"4.20\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.13\", \"versionStartIncluding\": \"4.20\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:01:15.617Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-46962\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:01:15.617Z\", \"dateReserved\": \"2024-02-27T18:42:55.942Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-02-27T18:47:01.169Z\", \"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.