CVE-2025-38469: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/xen: Fix cleanup logic in emulation of Xen schedop poll hypercalls kvm_xen_schedop_poll does a kmalloc_array() when a VM polls the host for more than one event channel potr (nr_ports > 1). After the kmalloc_array(), the error paths need to go through the "out" label, but the call to kvm_read_guest_virt() does not. [Adjusted commit message. - Paolo]

Affected products

• Linux Linux Kernel: from 6.2.1, before 6.6.100 (fixed in 6.6.100); from 6.7, before 6.12.40 (fixed in 6.12.40); from 6.13, before 6.15.8 (fixed in 6.15.8); version 6.2 only; version 6.16 only

Published 2025-07-28. Last modified 2026-06-17.