CVE-2022-50874
Unknown
Unknown - Not Provided
Reference Count Leak in Linux Kernel RDMA erdma_mmap Component
Publication date: 2025-12-30
Last updated on: 2025-12-30
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
RDMA/erdma: Fix refcount leak in erdma_mmap
rdma_user_mmap_entry_get() take reference, we should release it when not
need anymore, add the missing rdma_user_mmap_entry_put() in the error
path to fix it.
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 RDMA erdma_mmap component. Specifically, the function rdma_user_mmap_entry_get() takes a reference that should be released when no longer needed, but the code was missing a call to rdma_user_mmap_entry_put() in an error path, causing the reference count to leak.
How can this vulnerability impact me? :
The reference count leak could lead to resource leaks in the kernel, potentially causing increased memory usage or instability in systems using the RDMA erdma_mmap functionality.
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