New Linux Kernel Flaw Gives ARM64 KVM Guests Read-Write Access to Host Memory

T2Covered by 1 source · first reported by The Hacker News at 22 Sept, 11:38 UTC

A new flaw in the Linux kernel's KVM virtualization code for ARM64 processors can leave a freed piece of host memory exposed to a guest virtual machine on hosts with nested virtualization enabled. The bug, tracked as CVE-2026-89775, allows a guest to read and write host kernel memory, and the…

hardwaresecurity

Sources

• T2New Linux Kernel Flaw Gives ARM64 KVM Guests Read-Write Access to Host MemoryThe Hacker News22 Sept, 11:38

Vulnerabilities

• CVE-2026-89775