CVE-2026-53077
Received Received - Intake
Use of RDS/IB Restricted to Initial Network Namespace in Linux Kernel

Publication date: 2026-06-24

Last updated on: 2026-06-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: net/rds: Restrict use of RDS/IB to the initial network namespace Prevent using RDS/IB in network namespaces other than the initial one. The existing RDS/IB code will not work properly in non-initial network namespaces.
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Meta Information
Published
2026-06-24
Last Modified
2026-06-24
Generated
2026-06-25
AI Q&A
2026-06-24
EPSS Evaluated
N/A
NVD
CVE-2026-53077
EUVD
EUVD-2026-38945
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
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Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability involves the Linux kernel's RDS/IB (Reliable Datagram Sockets over InfiniBand) functionality. The issue is that RDS/IB was previously allowed to be used in network namespaces other than the initial one, but the code does not function correctly in these non-initial namespaces. The vulnerability has been resolved by restricting the use of RDS/IB to only the initial network namespace.

Impact Analysis

Because the RDS/IB code does not work properly in non-initial network namespaces, allowing its use outside the initial namespace could lead to unexpected behavior or failures in network communication using RDS/IB. This could impact applications or services relying on RDS/IB in isolated network environments, potentially causing instability or denial of service in those contexts.

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