In the Linux kernel, the following vulnerability has been resolved:
serial: pch: Fix PCI device refcount leak in pch_request_dma()
As comment of pci_get_slot() says, it returns a pci_device with its
refcount increased. The caller must decrement the reference count by
calling pci_dev_put().
Since 'dma_dev' is only used to filter the channel in filter(), we can
call pci_dev_put() before exiting from pch_request_dma(). Add the
missing pci_dev_put() for the normal and error path.
serial: pch: Fix PCI device refcount leak in pch_request_dma()
As comment of pci_get_slot() says, it returns a pci_device with its
refcount increased. The caller must decrement the reference count by
calling pci_dev_put().
Since 'dma_dev' is only used to filter the channel in filter(), we can
call pci_dev_put() before exiting from pch_request_dma(). Add the
missing pci_dev_put() for the normal and error path.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 23 Oct 2025 00:15:00 +0000
Type | Values Removed | Values Added |
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References |
| |
Metrics |
threat_severity
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cvssV3_1
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Wed, 22 Oct 2025 13:45:00 +0000

Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-10-22T13:23:30.250Z
Reserved: 2025-10-22T13:20:23.761Z
Link: CVE-2022-50576

No data.

Status : Awaiting Analysis
Published: 2025-10-22T14:15:42.560
Modified: 2025-10-22T21:12:48.953
Link: CVE-2022-50576


No data.