Bug 2400807 (CVE-2022-50464)

Summary: CVE-2022-50464 kernel: mt76: mt7915: Fix PCI device refcount leak in mt7915_pci_init_hif2()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2025-10-01 12:08:32 UTC 
In the Linux kernel, the following vulnerability has been resolved:

mt76: mt7915: Fix PCI device refcount leak in mt7915_pci_init_hif2()

As comment of pci_get_device() says, it returns a pci_device with its
refcount increased. We need to call pci_dev_put() to decrease the
refcount. Save the return value of pci_get_device() and call
pci_dev_put() to decrease the refcount.
Comment 1 Jon Moroney 2025-10-01 18:24:45 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025100121-CVE-2022-50464-3c96@gregkh/T