447 lines
19 KiB
JSON
447 lines
19 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2021-47327",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2024-05-21T14:28:16.975Z",
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"datePublished": "2024-05-21T14:35:39.816Z",
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"dateUpdated": "2026-05-11T13:52:20.041Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T13:52:20.041Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/arm-smmu: Fix arm_smmu_device refcount leak when arm_smmu_rpm_get fails\n\narm_smmu_rpm_get() invokes pm_runtime_get_sync(), which increases the\nrefcount of the \"smmu\" even though the return value is less than 0.\n\nThe reference counting issue happens in some error handling paths of\narm_smmu_rpm_get() in its caller functions. When arm_smmu_rpm_get()\nfails, the caller functions forget to decrease the refcount of \"smmu\"\nincreased by arm_smmu_rpm_get(), causing a refcount leak.\n\nFix this issue by calling pm_runtime_resume_and_get() instead of\npm_runtime_get_sync() in arm_smmu_rpm_get(), which can keep the refcount\nbalanced in case of failure."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/iommu/arm/arm-smmu/arm-smmu.c"
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],
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{
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "d4a44f0750bb9bf7c44c22444a482756b2344a79",
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"lessThan": "c4007596fbdabc29f858dc2e1990858a146b60b2",
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"status": "affected",
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},
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{
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"version": "d4a44f0750bb9bf7c44c22444a482756b2344a79",
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"lessThan": "fbf4daa6f4105e01fbd3868006f65c163365c1e3",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "d4a44f0750bb9bf7c44c22444a482756b2344a79",
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"lessThan": "fe92c058199067ae90cf2a901ddf3c271893557a",
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"status": "affected",
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},
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{
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"version": "d4a44f0750bb9bf7c44c22444a482756b2344a79",
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"lessThan": "1adf30f198c26539a62d761e45af72cde570413d",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/iommu/arm/arm-smmu/arm-smmu.c"
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],
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"versions": [
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{
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"version": "5.0",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "5.0",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.4.134",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.52",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.12.19",
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"lessThanOrEqual": "5.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.13.4",
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"lessThanOrEqual": "5.13.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.14",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.0",
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"versionEndExcluding": "5.4.134"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.0",
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"versionEndExcluding": "5.10.52"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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},
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.0",
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}
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]
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/3761ae0d0e549f2acdaf11f49df4ed06d256b20f"
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},
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{
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"url": "https://git.kernel.org/stable/c/c4007596fbdabc29f858dc2e1990858a146b60b2"
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},
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{
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"url": "https://git.kernel.org/stable/c/fbf4daa6f4105e01fbd3868006f65c163365c1e3"
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},
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{
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"url": "https://git.kernel.org/stable/c/fe92c058199067ae90cf2a901ddf3c271893557a"
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{
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"url": "https://git.kernel.org/stable/c/1adf30f198c26539a62d761e45af72cde570413d"
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}
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],
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"title": "iommu/arm-smmu: Fix arm_smmu_device refcount leak when arm_smmu_rpm_get fails",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"problemTypes": [
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{
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"descriptions": [
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{
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"type": "CWE",
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"cweId": "CWE-911",
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"lang": "en",
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"description": "CWE-911 Improper Update of Reference Count"
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "linux",
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"product": "linux_kernel",
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"cpes": [
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"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
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{
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{
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{
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"versionType": "custom"
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}
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{
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],
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"versions": [
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{
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"version": "5.13.4",
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"status": "unaffected",
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"lessThanOrEqual": "5.14",
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"versionType": "custom"
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}
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]
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},
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{
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"vendor": "linux",
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"product": "linux_kernel",
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"cpes": [
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],
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"defaultStatus": "unknown",
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"versions": [
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{
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"version": "5.14",
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"status": "unaffected"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 7.1,
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"attackVector": "LOCAL",
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"baseSeverity": "HIGH",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
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"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "HIGH"
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}
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},
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2024-06-06T15:58:26.406963Z",
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"id": "CVE-2021-47327",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2024-06-06T16:10:25.404Z"
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"dateUpdated": "2024-08-04T05:32:08.559Z"
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},
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/3761ae0d0e549f2acdaf11f49df4ed06d256b20f",
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} |