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2 results for “Linux kernel”

News 06 Aug 2026

Zapscape KVM Flaw Lets Guest VMs Seize Host Root via Shadow MMU Use-After-Free

Security researcher Hyunwoo Kim has disclosed Zapscape (CVE-2026-64561), a use-after-free vulnerability in the Linux kernel's KVM hypervisor that allows. Zapscape is the third entry in what Kim describes as a KVM escape trilogy, following.

Technology 07 Sep 2026

Trail of Bits: GPT-5.6-Cyber escapes a QEMU/KVM sandbox three times, including with 0-days

Trail of Bits tasked GPT-5.6-Cyber with escaping a QEMU/KVM VM on Debian 12. Over ~12 hours it broke out three times—kernel bug, unmarked libslirp, and a self-found 0-day chain—showing off-the-shelf VMs no longer contain such agents.