CVE-2026-46085: rxrpc: Fix rxkad crypto unalignment handling

Published May 27, 2026
·
Updated

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

rxrpc: Fix rxkad crypto unalignment handling

Fix handling of a packet with a misaligned crypto length. Also handle non-ENOMEM errors from decryption by aborting. Further, remove the WARNONONCE() so that it can't be remotely triggered (a trace line can still be emitted).

Affected Software

8 affected componentsFixes available
Linux Linux kernel
Linux Linux kernel>=6.6.135<6.6.140
Linux Linux kernel>=6.12.82<6.12.86
Linux Linux kernel>=6.18.23<6.18.27
Linux Linux kernel>=6.19.13<7.0
Linux Linux kernel>=7.0.1<7.0.4
Linux Linux kernel=7.0
Microsoft azl3 kernel 6.6.139.1-1<6.6.141.1-1
6.6.141.1-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 6.6.141.1-1

Event History

May 27, 2026
CVE Published
via MITRE·12:58 PM
Data Sourced
via MITRE·12:58 PM
DescriptionSeverity
Data Sourced
via NVD·02:17 PM
RemedyDescriptionSeverityAffected Software
May 28, 2026
Data Sourced
via Microsoft·08:03 AM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2026-46085?

The severity of CVE-2026-46085 is rated at 37.

2

What does CVE-2026-46085 address?

CVE-2026-46085 addresses the handling of misaligned crypto lengths in RxRPC within the Linux kernel.

3

How do I fix CVE-2026-46085?

To fix CVE-2026-46085, update to the latest version of the Linux kernel where the vulnerability has been patched.

4

Can CVE-2026-46085 be remotely exploited?

CVE-2026-46085 cannot be remotely triggered due to the removal of the WARN_ON_ONCE() condition.

5

What are the implications of CVE-2026-46085 if left unpatched?

If left unpatched, CVE-2026-46085 may lead to improper handling of decryption errors and potential application crashes.

Contact

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