CVE-2025-38469

KVM: x86/xen: Fix cleanup logic in emulation of Xen schedop poll hypercalls

MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.17 % · percentile 6 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

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]

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 92c58965e9656dc6e682a8ffe520fac0fb256d13 < 3ee59c38ae7369ad1f7b846e05633ccf0d159fab ; affected 92c58965e9656dc6e682a8ffe520fac0fb256d13 < fd627ac8a5cff4d45269f164b13ddddc0726f2cc ; affected 92c58965e9656dc6e682a8ffe520fac0fb256d13 < 061c553c66bc1638c280739999224c8000fd4602 ; affected 92c58965e9656dc6e682a8ffe520fac0fb256d13 < 5a53249d149f48b558368c5338b9921b76a12f8c
Linux · Linuxaffected 6.2 ; unaffected 0 < 6.2 ; unaffected 6.6.100 ≤ 6.6.* ; unaffected 6.12.40 ≤ 6.12.* ; unaffected 6.15.8 ≤ 6.15.* ; unaffected 6.16 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD