CVE 7.8 HIGH

net: mana: fix use-after-free in add_adev() error path_CVE-2026-43056

7.8 / 10
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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().

Basic Information

ID CVE-2026-43056
Source Linux
Published May 1, 2026 at 14:15
Modified May 3, 2026 at 05:46

Affected Product

Vendor Linux
Product Linux
Version a69839d4327d053b18d8e1b0e7ddeee78db78f4f
Affected Versions Linux Linux a69839d4327d053b18d8e1b0e7ddeee78db78f4f
Linux Linux a69839d4327d053b18d8e1b0e7ddeee78db78f4f
Linux Linux a69839d4327d053b18d8e1b0e7ddeee78db78f4f
Linux Linux a69839d4327d053b18d8e1b0e7ddeee78db78f4f
Linux Linux a69839d4327d053b18d8e1b0e7ddeee78db78f4f
Linux Linux 6.2

References

💭 Join the Security Discussion

🔒 Your email address will not be published. Required fields are marked *

⚠️ Please be respectful and constructive in your comments. Security discussions should remain professional.