CVE-2026-64490

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-64490

Key Details

CVE	CVE-2026-64490
CVSS Score / Version	8.4 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

ALSA: virtio: Validate control metadata from the device

virtio-snd control handling trusts the device-provided control type and

value count returned by the device.

That metadata is then used directly to index g_v2a_type_map[] in

virtsnd_kctl_info(), and to size loops and memcpy() operations in

virtsnd_kctl_get() and virtsnd_kctl_put() against fixed-size

virtio_snd_ctl_value and snd_ctl_elem_value arrays.

A buggy or malicious device can therefore trigger out-of-bounds access by

advertising an invalid control type or an oversized value count.

Validate control type and count once in virtsnd_kctl_parse_cfg(), before

querying enumerated items or exposing the control to ALSA. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-64490
CVE	https://www.cve.org/CVERecord?id=CVE-2026-64490

Source

Reference

NVD

CVE