Bug 2425139 (CVE-2022-50775) - CVE-2022-50775 kernel: RDMA/hns: Fix refcount leak in hns_roce_mmap
Summary: CVE-2022-50775 kernel: RDMA/hns: Fix refcount leak in hns_roce_mmap
Keywords:
Status: NEW
Alias: CVE-2022-50775
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-24 14:05 UTC by OSIDB Bzimport
Modified: 2026-06-29 20:34 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-12-24 14:05:49 UTC 
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 <xuhaoyue1>
Comment 1 Alexander B 2025-12-24 23:40:27 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025122459-CVE-2022-50775-6733@gregkh/T
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