CVE-2025-38469
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…
Does this matter?
Lower severity and a low EPSS score (0.15%). Track it; it rarely justifies an emergency change on its own.
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]
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.15% probability · 4th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/061c553c66bc1638c280739999224c8000fd4602Patch
- https://git.kernel.org/stable/c/3ee59c38ae7369ad1f7b846e05633ccf0d159fabPatch
- https://git.kernel.org/stable/c/5a53249d149f48b558368c5338b9921b76a12f8cPatch
- https://git.kernel.org/stable/c/fd627ac8a5cff4d45269f164b13ddddc0726f2ccPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.