CVE-2026-43056

Advisory lineage Upstream: 0 Downstream: 5
Analyzed
Published: 01 May 2026, 14:15
Last modified:11 May 2026, 22:16

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
v3.1 (cve.org)
EPSS Score
0.12% LOW
0% probability +0.10%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

01 May 2026, 14:15
Published
Vulnerability first disclosed
11 May 2026, 22:16
Last Modified
Vulnerability information updated

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 Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.12%• Percentile: 2%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • linux•linux

    ≥ a69839d4327d053b18d8e1b0e7ddeee78db78f4f, < d88541ffd56d62a61e77209080001eddd4d69815 | ≥ a69839d4327d053b18d8e1b0e7ddeee78db78f4f, < 43f5b19fd190fea20d052bc84741b28031d5baa9 | ≥ a69839d4327d053b18d8e1b0e7ddeee78db78f4f, < 5f4061f8225d18695e5afe9bbf1cb7bd673d7872 | ≥ a69839d4327d053b18d8e1b0e7ddeee78db78f4f, < e5a75bf026c686b91a7dc6f9c5caf5016745d1fe | ≥ a69839d4327d053b18d8e1b0e7ddeee78db78f4f, < c4ea7d8907cf72b259bf70bd8c2e791e1c4ff70f | 6.2

  • linux•linux_kernel

    ≥ 6.2, < 6.6.134 | ≥ 6.7, < 6.12.81 | ≥ 6.13, < 6.18.22 | ≥ 6.19, < 6.19.12 | 7.0:rc1 | 7.0:rc2 | 7.0:rc3 | 7.0:rc4 | 7.0:rc5

References (5)