CVE-2026-52969

In the Linux kernel, the following vulnerability has been resolved: KVM: Reject wrapped offset in kvmresetdirtygfn kvmresetdirtygfn guards the gfn range with if !memslot || offset + flsmask = memslot-npages return; but offset is u64 and the addition is unchecked. The check can be silently bypasse...

kernel: KVM: NULL pointer dereference in kvm_dirty_ring_push in virt/kvm/dirty_ring.c

A NULL pointer dereference issue was found in KVM when releasing a vCPU with dirty ring support enabled. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service...

The vulnerability of the kvm_dirty_ring_push function (virt/kvm/dirty_ring.c) in the KVM virtualization subsystem of the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the kvmdirtyringpush function virt/kvm/dirtyring.c in the KVM virtualization subsystem of the Linux operating system is related to pointer arithmetic errors. Exploiting this vulnerability could allow an attacker to cause a service failure...

Linux kernel 代码问题漏洞

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. Linux Kernel kvmdirtyringget suffers from a function denial of service vulnerability, which is caused by the kvmdirtyring function in virt/kvm/dirtyring.c without creating a vCPU. dirtyring function in...