CVE-2026-53077

kernel: net/rds: Restrict use of RDS/IB to the initial network namespace

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · June 24, 2026

Updated · August 5, 2026

Description

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.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-280 · Improper Handling of Insufficient Permissions or Privileges