CVE-2025-38469
Medium
Description
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]
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedJul 28, 2025
First seenJul 28, 2025
How to fix
Update
- linux linux_kernel6.6.100, 6.12.40, 6.15.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.2.1 ≤ v < 6.6.100, 6.7 ≤ v < 6.12.40, 6.13 ≤ v < 6.15.8, 6.2, 6.16 | 6.6.100, 6.12.40, 6.15.8 |
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