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Vulnerability record · CVE-2026-43138 · published 6 May 2026

CVE-2026-43138: Linux kernel use after free vulnerability

Linux · Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: reset: gpio: suppress bind attributes in sysfs This is a special device that's created dynamically and is supposed to stay in memory forever. We also currently don't have a devlink between it and the actual reset consumer. Suppress sysfs bind attributes so that user-space can't unbind the device because - as of now - it will cause a use-after-free splat from any user that puts the reset control handle.

7.8 CVSS 3.1 High EPSS 0.17% · top 94.3% CWE-416 · Use after free
7.8CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

In the Linux kernel, the following vulnerability has been resolved: reset: gpio: suppress bind attributes in sysfs This is a special device that's created dynamically and is supposed to stay in memory forever. We also currently don't have a devlink between it and the actual reset consumer. Suppress sysfs bind attributes so that user-space can't unbind the device because - as of now - it will cause a use-after-free splat from any user that puts the reset control handle.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/09d6efc6abd42809956d598906c222ccd1c8ae92 Patch
https://git.kernel.org/stable/c/16de4c6a8fe9ff497ca1aba33ef0dbee09f11952 Patch
https://git.kernel.org/stable/c/1d7d869f074f98c34fe23f6a56e5f3acc1f95a2b Patch
https://git.kernel.org/stable/c/76801c3dfca0ac6339a23e9615b5f23e25b8644c Patch

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Source: NIST National Vulnerability Database (record CVE-2026-43138), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.