Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: gpio: sysfs: fix chip removal with GPIOs exported over sysfs Currently if we export a GPIO over sysfs and unbind the parent GPIO controller, the exported attribute will remain under /sys/class/gpio because once we remove the parent device, we can no longer associate the descriptor with it in gpiod_unexport() and never drop the final reference. Rework the teardown code: provide an unlocked variant of gpiod_unexport() and remove all exported GPIOs with the sysfs_lock taken before unregistering the parent device itself. This is done to prevent any new exports happening before we unregister the device completely.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.17, < 6.18.16 |
References
- https://git.kernel.org/stable/c/54f463494eb5bf193ef7d904a493474c451734dfPatch
- https://git.kernel.org/stable/c/6766f59012301f1bf3f46c6e7149caca45d92309Patch
- https://git.kernel.org/stable/c/a645cc25904b0baf508b77a0402ce151212b9800Patch
FAQ
What is CVE-2026-43181?
CVE-2026-43181 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: gpio: sysfs: fix chip removal with GPIOs exported over sysfs Currently if we export a GPIO over sysfs and unbind the parent GPIO c...
How severe is CVE-2026-43181?
CVE-2026-43181 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-43181?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.