CVE-2022-48630 (GCVE-0-2022-48630)
Vulnerability from cvelistv5
Published
2024-03-05 11:18
Modified
2025-05-04 12:43
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: qcom-rng - fix infinite loop on requests not multiple of WORD_SZ The commit referenced in the Fixes tag removed the 'break' from the else branch in qcom_rng_read(), causing an infinite loop whenever 'max' is not a multiple of WORD_SZ. This can be reproduced e.g. by running: kcapi-rng -b 67 >/dev/null There are many ways to fix this without adding back the 'break', but they all seem more awkward than simply adding it back, so do just that. Tested on a machine with Qualcomm Amberwing processor.
References
Impacted products
Vendor Product Version
Linux Linux Version: a8e32bbb96c25b7ab29b1894dcd45e0b3b08fd9d
Version: 184f7bd08ce56f003530fc19f160d54e75bf5c9d
Version: 0f9b7b8df17525e464294c916acc8194ce38446b
Version: ab9337c7cb6f875b6286440b1adfbeeef2b2b2bd
Version: a680b1832ced3b5fa7c93484248fd221ea0d614b
Version: a680b1832ced3b5fa7c93484248fd221ea0d614b
Version: 485995cbc98a4f77cfd4f8ed4dd7ff8ab262964d
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This can be reproduced e.g. by running:\\n\\n    kcapi-rng -b 67 \u003e/dev/null\\n\\nThere are many ways to fix this without adding back the \u0027break\u0027, but\\nthey all seem more awkward than simply adding it back, so do just that.\\n\\nTested on a machine with Qualcomm Amberwing processor.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.245\", \"versionStartIncluding\": \"4.19.236\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.196\", \"versionStartIncluding\": \"5.4.187\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.118\", \"versionStartIncluding\": \"5.10.108\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.42\", \"versionStartIncluding\": \"5.15.31\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.17.10\", \"versionStartIncluding\": \"5.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.18\", \"versionStartIncluding\": \"5.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.16.17\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T12:43:30.051Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-48630\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T12:43:30.051Z\", \"dateReserved\": \"2024-02-25T13:44:28.315Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-05T11:18:07.394Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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