CVE-2026-98928
kernel: KVM: arm64: Derive GUEST_HAS_SVE from the SVE feature bit at EL2
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 23, 2026
Updated · October 30, 2026
Description
A flaw was found in the Linux kernel's KVM (Kernel-based Virtual Machine) subsystem for ARM64. A local privileged user can cause a Denial of Service (DoS) by initializing a virtual machine with inconsistent Scalable Vector Extension (SVE) settings. This condition leads to a null pointer dereference when loading CPU state during a context switch, resulting in a hypervisor crash.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 6.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference