Bug 2424996 (CVE-2023-54003)

Summary: CVE-2023-54003 kernel: Linux kernel: RDMA/core GID entry leak causes Denial of Service
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in the Linux kernel's Remote Direct Memory Access (RDMA) core component. A local user with low privileges could trigger a Global Identifier (GID) entry reference leak when an Address Handle (AH) creation request fails. This resource leak could lead to system instability and a Denial of Service (DoS).
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Description OSIDB Bzimport 2025-12-24 12:06:55 UTC 
In the Linux kernel, the following vulnerability has been resolved:

RDMA/core: Fix GID entry ref leak when create_ah fails

If AH create request fails, release sgid_attr to avoid GID entry
referrence leak reported while releasing GID table
Comment 1 Alexander B 2025-12-25 10:02:42 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025122427-CVE-2023-54003-01b7@gregkh/T