CVE-2022-50775
Unknown Unknown - Not Provided
Reference Count Leak in Linux Kernel RDMA hns_roce_mmap Component

Publication date: 2025-12-24

Last updated on: 2025-12-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix refcount leak in hns_roce_mmap rdma_user_mmap_entry_get_pgoff() takes the reference. Add missing rdma_user_mmap_entry_put() to release the reference. Acked-by Haoyue Xu <[email protected]>
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Meta Information
Published
2025-12-24
Last Modified
2025-12-24
Generated
2026-05-07
AI Q&A
2025-12-24
EPSS Evaluated
2026-05-05
NVD
CVE-2022-50775
EUVD
EUVD-2022-55786
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is a reference count leak in the Linux kernel's RDMA hns_roce driver. Specifically, the function rdma_user_mmap_entry_get_pgoff() takes a reference, but the corresponding release function rdma_user_mmap_entry_put() was missing, causing the reference count to not be properly decremented.


How can this vulnerability impact me? :

The reference count leak can lead to resource leaks in the kernel, potentially causing increased memory usage or instability in systems using the RDMA hns_roce driver. This could degrade system performance or lead to denial of service conditions.


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