New OVSwrap Linux Kernel Flaw Lets Local Users Gain Root via Open vSwitch
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IT Security News - cybersecurity, infosecurity newsNew Interrupt Injection Attack Can Bypass Spectre v2 Defenses on Intel and AMD CPUs
An unprivileged Linux program can time a hardware interrupt to land in the gap between a processor sanitizing its branch predictor and the kernel using it, re-poisoning the predictor after the defense has run. MIT CSAIL researchers Daniël Trujillo and Mengjia Yan named the technique INTERRUPT INJECTION. On an AMD Zen 2 machine running Linux 6.14 with every default Spectre v2 mitigation on,
A new critical vulnerability in Linux Kernel has put system administrators and security professionals on alert. Named OVSwrap and registered as CVE-2026-64531, failure affects Open vSwitch (OVS) and can allow unprivileged local users to gain root access to the system. As the problem is located in the kernel module's data path, its impact can affect physical servers, virtual machines and cloud computing environments that use the vulnerable compon…
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