cve-2022-49002
Vulnerability from cvelistv5
Published
2024-10-21 20:06
Modified
2024-12-19 08:12
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init() for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL. If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. Add the missing pci_dev_put() for the error path to avoid reference count leak.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2a8f7b90681472948de172dbbf5a54cd342870aaPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4bedbbd782ebbe7287231fea862c158d4f08a9e3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/71c4a621985fc051ab86d3a86c749069a993fcb2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/876d7bfb89273997056220029ff12b1c2cc4691dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a5c65cd56aed027f8a97fda8b691caaeb66d115ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bdb613ef179ad4bb9d56a2533e9b30e434f1dfb7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cbdd83bd2fd67142b03ce9dbdd1eab322ff7321fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d47bc9d7bcdbb9adc9703513d964b514fee5b0bfPatch
Impacted products
Vendor Product Version
Linux Linux Version: 2e45528930388658603ea24d49cf52867b928d3e
Version: 2e45528930388658603ea24d49cf52867b928d3e
Version: 2e45528930388658603ea24d49cf52867b928d3e
Version: 2e45528930388658603ea24d49cf52867b928d3e
Version: 2e45528930388658603ea24d49cf52867b928d3e
Version: 2e45528930388658603ea24d49cf52867b928d3e
Version: 2e45528930388658603ea24d49cf52867b928d3e
Version: 2e45528930388658603ea24d49cf52867b928d3e
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   Linux Linux Version: 3.15
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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-49002\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-22T13:15:03.202654Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-22T13:15:06.418Z\"}}], \"cna\": {\"title\": \"iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2e45528930388658603ea24d49cf52867b928d3e\", \"lessThan\": \"d47bc9d7bcdbb9adc9703513d964b514fee5b0bf\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2e45528930388658603ea24d49cf52867b928d3e\", \"lessThan\": \"71c4a621985fc051ab86d3a86c749069a993fcb2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2e45528930388658603ea24d49cf52867b928d3e\", \"lessThan\": \"876d7bfb89273997056220029ff12b1c2cc4691d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2e45528930388658603ea24d49cf52867b928d3e\", \"lessThan\": \"cbdd83bd2fd67142b03ce9dbdd1eab322ff7321f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2e45528930388658603ea24d49cf52867b928d3e\", \"lessThan\": \"a5c65cd56aed027f8a97fda8b691caaeb66d115e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2e45528930388658603ea24d49cf52867b928d3e\", \"lessThan\": \"bdb613ef179ad4bb9d56a2533e9b30e434f1dfb7\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2e45528930388658603ea24d49cf52867b928d3e\", \"lessThan\": \"2a8f7b90681472948de172dbbf5a54cd342870aa\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2e45528930388658603ea24d49cf52867b928d3e\", \"lessThan\": \"4bedbbd782ebbe7287231fea862c158d4f08a9e3\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/iommu/intel/dmar.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.9.335\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.301\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.268\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.226\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.158\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.82\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.0.12\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.0.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/iommu/intel/dmar.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/d47bc9d7bcdbb9adc9703513d964b514fee5b0bf\"}, {\"url\": \"https://git.kernel.org/stable/c/71c4a621985fc051ab86d3a86c749069a993fcb2\"}, {\"url\": \"https://git.kernel.org/stable/c/876d7bfb89273997056220029ff12b1c2cc4691d\"}, {\"url\": \"https://git.kernel.org/stable/c/cbdd83bd2fd67142b03ce9dbdd1eab322ff7321f\"}, {\"url\": \"https://git.kernel.org/stable/c/a5c65cd56aed027f8a97fda8b691caaeb66d115e\"}, {\"url\": \"https://git.kernel.org/stable/c/bdb613ef179ad4bb9d56a2533e9b30e434f1dfb7\"}, {\"url\": \"https://git.kernel.org/stable/c/2a8f7b90681472948de172dbbf5a54cd342870aa\"}, {\"url\": \"https://git.kernel.org/stable/c/4bedbbd782ebbe7287231fea862c158d4f08a9e3\"}], \"x_generator\": {\"engine\": \"bippy-5f407fcff5a0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\niommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init()\\n\\nfor_each_pci_dev() is implemented by pci_get_device(). The comment of\\npci_get_device() says that it will increase the reference count for the\\nreturned pci_dev and also decrease the reference count for the input\\npci_dev @from if it is not NULL.\\n\\nIf we break for_each_pci_dev() loop with pdev not NULL, we need to call\\npci_dev_put() to decrease the reference count. Add the missing\\npci_dev_put() for the error path to avoid reference count leak.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-12-19T08:12:14.036Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49002\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-12-19T08:12:14.036Z\", \"dateReserved\": \"2024-08-22T01:27:53.642Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T20:06:16.093Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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