CVE-2026-31634: rxrpc: fix reference count leak in rxrpc_server_keyring()

Published Apr 24, 2026
·
Updated

In the Linux kernel, the following vulnerability has been resolved:

rxrpc: fix reference count leak in rxrpcserverkeyring()

This patch fixes a reference count leak in rxrpcserverkeyring() by checking if rx->securities is already set.

Affected Software

16 affected componentsFixes available
Linux Linux kernel
Linux Linux kernel>=2.6.22.1<5.15.203
Linux Linux kernel>=5.16<6.1.169
Linux Linux kernel>=6.2<6.6.135
Linux Linux kernel>=6.7<6.12.82
Linux Linux kernel>=6.13<6.18.23
Linux Linux kernel>=6.19<6.19.13
Linux Linux kernel=2.6.22
Linux Linux kernel=7.0-rc1
Linux Linux kernel=7.0-rc2
Linux Linux kernel=7.0-rc3
Linux Linux kernel=7.0-rc4
Linux Linux kernel=7.0-rc5
Linux Linux kernel=7.0-rc6
Linux Linux kernel=7.0-rc7
Microsoft azl3 kernel 6.6.134.1-2

Event History

Apr 24, 2026
CVE Published
via MITRE·02:44 PM
Data Sourced
via MITRE·02:44 PM
Description
Data Sourced
via NVD·03:16 PM
RemedyDescriptionSeverityAffected Software
Apr 26, 2026
Data Sourced
via Microsoft·08:09 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·08:09 AM
DescriptionSeverity

Frequently Asked Questions

1

What is the severity of CVE-2026-31634?

CVE-2026-31634 is classified as a medium severity vulnerability due to a reference count leak that could potentially affect server operations.

2

How do I fix CVE-2026-31634?

To fix CVE-2026-31634, update your Linux kernel to the latest stable version where the vulnerability has been patched.

3

Which versions of the Linux kernel are affected by CVE-2026-31634?

CVE-2026-31634 affects multiple versions of the Linux kernel, specifically those between 2.6.22 and 6.19.13.

4

What are the potential risks of CVE-2026-31634?

The main risk associated with CVE-2026-31634 is a potential denial of service or stability issues in the affected Linux kernel environments.

5

Is CVE-2026-31634 exploitative in nature?

CVE-2026-31634 is not explicitly exploitative, but the reference count leak could lead to conditions that may be leveraged by attackers.

Contact

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