CVE-2022-49002

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Source
https://cve.org/CVERecord?id=CVE-2022-49002
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49002.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49002
Downstream
Related
Published
2024-10-21T20:06:16.093Z
Modified
2026-03-12T03:24:25.970483Z
Summary
iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init()
Details

In the Linux kernel, the following vulnerability has been resolved:

iommu/vt-d: Fix PCI device refcount leak in dmardevscope_init()

foreachpcidev() is implemented by pcigetdevice(). The comment of pcigetdevice() says that it will increase the reference count for the returned pcidev and also decrease the reference count for the input pci_dev @from if it is not NULL.

If we break foreachpcidev() loop with pdev not NULL, we need to call pcidevput() to decrease the reference count. Add the missing pcidev_put() for the error path to avoid reference count leak.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49002.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2e45528930388658603ea24d49cf52867b928d3e
Fixed
d47bc9d7bcdbb9adc9703513d964b514fee5b0bf
Fixed
71c4a621985fc051ab86d3a86c749069a993fcb2
Fixed
876d7bfb89273997056220029ff12b1c2cc4691d
Fixed
cbdd83bd2fd67142b03ce9dbdd1eab322ff7321f
Fixed
a5c65cd56aed027f8a97fda8b691caaeb66d115e
Fixed
bdb613ef179ad4bb9d56a2533e9b30e434f1dfb7
Fixed
2a8f7b90681472948de172dbbf5a54cd342870aa
Fixed
4bedbbd782ebbe7287231fea862c158d4f08a9e3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49002.json"