Bug 2419866 (CVE-2022-50615)

Summary: CVE-2022-50615 kernel: perf/x86/intel/uncore: Fix reference count leak in snr_uncore_mmio_map()
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 2025-12-08 07:04:34 UTC 
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().
Comment 1 Alexander B 2025-12-10 09:13:11 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025120851-CVE-2022-50615-5c90@gregkh/T