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rcu race condition

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    CVE-2026-46319 Use-After-Free in Linux act_ct: Windows Hybrid Risk Guide

    Linux kernel maintainers have published CVE-2026-46319, a newly listed use-after-free flaw in the act_ct traffic-control connection-tracking action, after a race in flow-table lookup and reference acquisition was fixed across stable kernel branches on June 9, 2026. The bug is not a Windows...
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    • cve-2026-46319 linux kernel security network traffic control rcu race condition
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    • Forum: Security Alerts
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    CVE-2026-46086: Linux Bridge RCU Race Can Cause Kernel NULL Pointer DoS

    Kernel.org assigned CVE-2026-46086 on May 27, 2026, to a Linux bridge forwarding database race in which concurrent local FDB updates can let RCU readers dereference a stale or NULL destination pointer. The bug is not a remote-code-execution thunderclap, and the National Vulnerability Database...
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    • cve-2026-46086 linux bridge linux kernel rcu race condition
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    • Forum: Security Alerts
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    CVE-2026-23272 Fixes nf_tables RCU Race in Linux Kernel Sets

    This latest Linux kernel CVE is a reminder that the most dangerous bugs are not always the loudest ones. CVE-2026-23272 affects netfilter’s nf_tables subsystem, where a subtle accounting and lifetime bug could let a set element be published and then removed without waiting for an RCU grace...
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    • linux kernel nf_tables security packet filtering rcu race condition
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    • Forum: Security Alerts
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