cpu soft lock

About this tag
The cpu soft lock tag on WindowsForum.com covers discussions about kernel-level reliability issues that cause CPU soft lockups, particularly the CVE-2025-38146 vulnerability in Open vSwitch (OVS). This bug involves an MPLS parsing flaw that can lead to infinite loops, resulting in CPU soft lockups. Microsoft has confirmed that Azure Linux is potentially affected, and upstream kernel patches are available. The tag includes threads analyzing the technical root cause, impact on system availability, and remediation steps for affected systems.

  1. CVE-2025-38146 Open vSwitch MPLS Dead Loop Causes CPU Soft Locks (Azure Linux Attested)

    The Open vSwitch (OVS) MPLS parsing bug tracked as CVE-2025-38146 is a real kernel-level reliability vulnerability that can cause a CPU soft‑lockup by driving the MPLS parsing code into an infinite loop. Multiple independent trackers and downstream advisories confirm the technical root cause and...
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    • azure linux attestation cpu soft lock mpls parsing open vswitch
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    • Forum: Security Alerts