CVE-2026-43056

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-43056

Key Details

CVE	CVE-2026-43056
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-16
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
Classified as	CWE-416 (Use After Free)

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:

net: mana: fix use-after-free in add_adev() error path

If auxiliary_device_add() fails, add_adev() jumps to add_fail and calls

auxiliary_device_uninit(adev).

The auxiliary device has its release callback set to adev_release(),

which frees the containing struct mana_adev. Since adev is embedded in

struct mana_adev, the subsequent fall-through to init_fail and access

to adev->id may result in a use-after-free.

Fix this by saving the allocated auxiliary device id in a local

variable before calling auxiliary_device_add(), and use that saved id

in the cleanup path after auxiliary_device_uninit(). (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-43056
CVE	https://www.cve.org/CVERecord?id=CVE-2026-43056

Source

Reference

NVD

CVE