CVE-2026-98527
Published Oct 18, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: gpio: zynq: fix runtime PM leak on request error path pm_runtime_get_sync() leaves the usage counter incremented even when it fails, and zynq_gpio_request() returns the error without dropping it. gpiolib does not call ->free() when ->request() fails, so zynq_gpio_free(), which holds the only matching pm_runtime_put(), never runs. The reference is leaked and the controller can no longer runtime-suspend, so its clock stays enabled. Switch to pm_runtime_resume_and_get(), which only increments the usage counter on success.
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References
Other References
https://git.kernel.org/stable/c/25c08be2a5e7715f19a6e02bbe9b0e5f01c77aac
https://git.kernel.org/stable/c/58a417a19d80141fff3abe6004e2e47285506e73
https://git.kernel.org/stable/c/60a76cdd92e25f576dc58d756a565760dde1f7a1
https://git.kernel.org/stable/c/6e05f1c614a57a5d4c364dd12e20c6fd012f9d3e
https://git.kernel.org/stable/c/6e20dabffbcd7b222d8e7bb85a7d8e8325df7699
https://git.kernel.org/stable/c/a3e9b7f7c9558f8c9592f8f817557bff98707bb3
https://git.kernel.org/stable/c/e380fba02908b809f5bbef371259003cf5887bb4
https://git.kernel.org/stable/c/e9438ab5328a177c9c0e5df87eb92a7162841e98
Frequently Asked Questions
What is CVE-2026-98527? +
In the Linux kernel, the following vulnerability has been resolved:
gpio: zynq: fix runtime PM leak on request error path
pm_runtime_get_sync() leaves the usage counter incremented even when it
fails, and zynq_gpio_request() returns the error without dropping it.
gpiolib does not call ->free() when ->request() fails, so zynq_gpio_free(),
which holds the only matching pm_runtime_put(), never runs. The reference
is leaked and the controller can no longer runtime-suspend, so its clock
stays enabled.
Switch to pm_runtime_resume_and_get(), which only increments the usage
counter on success.
How do I check if I'm vulnerable to CVE-2026-98527? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.