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: {
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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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