CVE-2026-43056

HIGH EPSS 1.9%
Published May 1, 20262mo ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published May 1, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

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().

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
1.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥6.2  –  <6.6.134
linuxlinux_kernel*≥6.7  –  <6.12.81
linuxlinux_kernel*≥6.13  –  <6.18.22
linuxlinux_kernel*≥6.19  –  <6.19.12
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 5

  • git.kernel.org https://git.kernel.org/stable/c/43f5b19fd190fea20d052bc84741b28031d5baa9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5f4061f8225d18695e5afe9bbf1cb7bd673d7872
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c4ea7d8907cf72b259bf70bd8c2e791e1c4ff70f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d88541ffd56d62a61e77209080001eddd4d69815
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e5a75bf026c686b91a7dc6f9c5caf5016745d1fe
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/43f5b19fd190fea20d052bc84741b28031d5baa9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5f4061f8225d18695e5afe9bbf1cb7bd673d7872
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c4ea7d8907cf72b259bf70bd8c2e791e1c4ff70f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d88541ffd56d62a61e77209080001eddd4d69815
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e5a75bf026c686b91a7dc6f9c5caf5016745d1fe
    Patch