CVE-2026-43138

High

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.

SeverityHigh
CVSS7.8
Exploit probability—
ProductLinux Kernel
PublishedMay 6, 2026
First seenMay 6, 2026

How to fix

Update
  • linux linux_kernel6.12.75, 6.18.16, 6.19.6 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernel6.9 ≤ v < 6.12.75, 6.13 ≤ v < 6.18.16, 6.19 ≤ v < 6.19.66.12.75, 6.18.16, 6.19.6

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CVE-2026-43138 · Linux Kernel · Dark Radar