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.
References
Configurations
Configuration 1 (hide)
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History
12 Nov 2026, 20:53
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux linux Kernel
Linux |
|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| References | () https://git.kernel.org/stable/c/21584672fd699abe1768241d6c501b2de6139b6a - Patch | |
| References | () https://git.kernel.org/stable/c/3243563f99ef5d3949b934bd6390a5679405d0e1 - Patch | |
| References | () https://git.kernel.org/stable/c/5da9742de22db0dbaa8d414214ab5e1bedde00f9 - Patch | |
| References | () https://git.kernel.org/stable/c/c77a6cbb36ff8cbc1f084d94f8dcda5250935271 - Patch |
19 Oct 2026, 21:17
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-125 |
Information
Published : 2026-07-25 10:17
Updated : 2026-11-12 20:53
NVD link : CVE-2026-64490
Mitre link : CVE-2026-64490
CVE.ORG link : CVE-2026-64490
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-125
Out-of-bounds Read