CVE-2026-43056

HIGH

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

Title source: cna
STIX 2.1

Description

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().

Scores

CVSS v3 7.8
EPSS 0.0001
EPSS Percentile 2.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (14)
Linux/Linux < 6.2
Linux/Linux 6.12.81 - 6.12.*
Linux/Linux 6.18.22 - 6.18.*
Linux/Linux 6.19.12 - 6.19.*
Linux/Linux 6.2
Linux/Linux 6.6.134 - 6.6.*
Linux/Linux 7.0
Linux/Linux a69839d4327d053b18d8e1b0e7ddeee78db78f4f - 43f5b19fd190fea20d052bc84741b28031d5baa9
Linux/Linux a69839d4327d053b18d8e1b0e7ddeee78db78f4f - 5f4061f8225d18695e5afe9bbf1cb7bd673d7872
Linux/Linux a69839d4327d053b18d8e1b0e7ddeee78db78f4f - c4ea7d8907cf72b259bf70bd8c2e791e1c4ff70f
... and 4 more
Published May 01, 2026
Tracked Since May 01, 2026