CVE-2026-53077

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

State: Published
Severity: 7.8 High
Published: Jun 24, 2026
Updated: Aug 5, 2026
Reserved: Jun 9, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 to before 3e7f14cd5a51533404e1ae4809caab46073fb5c7Affected d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 to before 3174fc703d081d2ca538b22fba734e3ad5b52322Affected d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 to before c244b79adffad89a5173cf8bfaa06a6b40bbd09bAffected d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 to before 07035306bf722f4676a1aee35cbeb3732c76194eAffected d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 to before fb407343c0c16e94584707b2dfdd350a5f81b000Affected d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 to before a7494479757d60d2413bfaa087f8431a26eea032Affected d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 to before b6a54f5e9ce9b97ae641855378d71c5154a085c0Affected d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 to before ebf71dd4aff46e8e421d455db3e231ba43d2fa8aAffected
LinuxLinux	4.3Affected before 4.3Not affected 5.10.258 through 5.10.Not affected 5.15.209 through 5.15.Not affected 6.1.175 through 6.1.Not affected 6.6.141 through 6.6.Not affected 6.12.91 through 6.12.Not affected 6.18.33 through 6.18.Not affected 7.0.10 through 7.0.*Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 to before 3e7f14cd5a51533404e1ae4809caab46073fb5c7Affected
d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 to before 3174fc703d081d2ca538b22fba734e3ad5b52322Affected
d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 to before c244b79adffad89a5173cf8bfaa06a6b40bbd09bAffected
d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 to before 07035306bf722f4676a1aee35cbeb3732c76194eAffected
d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 to before fb407343c0c16e94584707b2dfdd350a5f81b000Affected
d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 to before a7494479757d60d2413bfaa087f8431a26eea032Affected
d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 to before b6a54f5e9ce9b97ae641855378d71c5154a085c0Affected
d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 to before ebf71dd4aff46e8e421d455db3e231ba43d2fa8aAffected

LinuxLinux

4.3Affected
before 4.3Not affected
5.10.258 through 5.10.*Not affected
5.15.209 through 5.15.*Not affected
6.1.175 through 6.1.*Not affected
6.6.141 through 6.6.*Not affected
6.12.91 through 6.12.*Not affected
6.18.33 through 6.18.*Not affected
7.0.10 through 7.0.*Not affected
7.1 and laterNot affected

References

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