Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate 2026-06-24T00:00:00 kernel: net/rds: Restrict use of RDS/IB to the initial network namespace 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CWE-280

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.

A flaw was found in the Linux kernel's Reliable Datagram Sockets over InfiniBand (RDS/IB) component. This vulnerability allowed the use of RDS/IB in network namespaces other than the initial one, where the existing code would not function correctly. This improper operation could lead to unexpected system behavior or a denial of service.

Red Hat Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-53077 https://nvd.nist.gov/vuln/detail/CVE-2026-53077 https://lore.kernel.org/linux-cve-announce/2026062406-CVE-2026-53077-a66c@gregkh/T