CVE-2026-43126

Last refreshed2026-10-23

Status: UPDATED | Advisory ID: CVE-2026-43126

Key Details

CVE	CVE-2026-43126
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-21
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; 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: mixer: oss: Add card disconnect checkpoints

ALSA OSS mixer layer calls the kcontrol ops rather individually, and

pending calls might be not always caught at disconnecting the device.

For avoiding the potential UAF scenarios, add sanity checks of the

card disconnection at each entry point of OSS mixer accesses. The

rwsem is taken just before that check, hence the rest context should

be covered by that properly. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-43126
CVE	https://www.cve.org/CVERecord?id=CVE-2026-43126

Source

Reference

NVD

CVE