cve/published/2024/CVE-2024-58084.json

{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: qcom: scm: Fix missing read barrier in qcom_scm_get_tzmem_pool()\n\nCommit 2e4955167ec5 (\"firmware: qcom: scm: Fix __scm and waitq\ncompletion variable initialization\") introduced a write barrier in probe\nfunction to store global '__scm' variable.  We all known barriers are\npaired (see memory-barriers.txt: \"Note that write barriers should\nnormally be paired with read or address-dependency barriers\"), therefore\naccessing it from concurrent contexts requires read barrier.  Previous\ncommit added such barrier in qcom_scm_is_available(), so let's use that\ndirectly.\n\nLack of this read barrier can result in fetching stale '__scm' variable\nvalue, NULL, and dereferencing it.\n\nNote that barrier in qcom_scm_is_available() satisfies here the control\ndependency."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/firmware/qcom/qcom_scm.c"
               ],
               "versions": [
                  {
                     "version": "449d0d84bcd8246b508d07995326d13c54488b8c",
                     "lessThan": "fee921e3c641f64185abee83f9a6e65f0b380682",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "449d0d84bcd8246b508d07995326d13c54488b8c",
                     "lessThan": "e03db7c1255ebabba5e1a447754faeb138de15a2",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "449d0d84bcd8246b508d07995326d13c54488b8c",
                     "lessThan": "b628510397b5cafa1f5d3e848a28affd1c635302",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/firmware/qcom/qcom_scm.c"
               ],
               "versions": [
                  {
                     "version": "6.11",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.11",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.12.14",
                     "lessThanOrEqual": "6.12.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.13.3",
                     "lessThanOrEqual": "6.13.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.14",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "cpeApplicability": [
            {
               "nodes": [
                  {
                     "operator": "OR",
                     "negate": false,
                     "cpeMatch": [
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.11",
                           "versionEndExcluding": "6.12.14"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.11",
                           "versionEndExcluding": "6.13.3"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.11",
                           "versionEndExcluding": "6.14"
                        }
                     ]
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         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/fee921e3c641f64185abee83f9a6e65f0b380682"
            },
            {
               "url": "https://git.kernel.org/stable/c/e03db7c1255ebabba5e1a447754faeb138de15a2"
            },
            {
               "url": "https://git.kernel.org/stable/c/b628510397b5cafa1f5d3e848a28affd1c635302"
            }
         ],
         "title": "firmware: qcom: scm: Fix missing read barrier in qcom_scm_get_tzmem_pool()",
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            "engine": "bippy-1.2.0"
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      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-58084",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}