CVE-2022-50615
Unknown
Unknown - Not Provided
BaseFortify
Publication date: 2025-12-08
Last updated on: 2025-12-08
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
perf/x86/intel/uncore: Fix reference count leak in snr_uncore_mmio_map()
pci_get_device() will increase the reference count for the returned
pci_dev, so snr_uncore_get_mc_dev() will return a pci_dev with its
reference count increased. We need to call pci_dev_put() to decrease the
reference count. Let's add the missing pci_dev_put().
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | * |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a reference count leak in the Linux kernel's perf/x86/intel/uncore component. Specifically, the function snr_uncore_get_mc_dev() returns a pci_dev structure with an increased reference count due to pci_get_device(), but it fails to call pci_dev_put() to decrease the reference count, leading to a resource leak.
How can this vulnerability impact me? :
The reference count leak can cause resource exhaustion in the kernel, potentially leading to degraded system performance or instability over time as resources are not properly released.
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