CVE-2026-74428
Received Received - Intake

Double Lock Fix in Linux Kernel rxrpc

Publication date: 2026-08-15

Last updated on: 2026-08-15

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix double unlock in rxrpc_recvmsg() Fix a double unlock in rxrpc_recvmsg() when dealing with OOB messages.

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Meta Information

Published
2026-08-15
Last Modified
2026-08-15
Generated
2026-08-15
AI Q&A
2026-08-15
EPSS Evaluated
N/A
NVD
CVE-2026-74428
EUVD
EUVD-2026-59575

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a Linux kernel vulnerability where a double unlock issue occurs in the rxrpc_recvmsg() function when handling out-of-band (OOB) messages. This could lead to undefined behavior or system instability.

Detection Guidance

This vulnerability is specific to the Linux kernel's rxrpc subsystem and involves a double unlock issue in rxrpc_recvmsg(). Detection requires checking kernel logs for related errors or kernel crashes. Commands like 'dmesg | grep rxrpc' or 'journalctl -k | grep rxrpc' may help identify issues. Ensure your kernel is updated to a patched version.

Impact Analysis

The impact depends on system usage. If exploited, it could cause crashes, data corruption, or privilege escalation in systems using the Linux kernel's rxrpc functionality.

Mitigation Strategies

Immediate mitigation involves updating the Linux kernel to a version that includes the fix for this vulnerability. Check your distribution's security advisories or kernel updates. If updating is not immediately possible, consider disabling the rxrpc module if not in use by running 'modprobe -r rxrpc'.

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