CVE-2026-98527

gpio: zynq: fix runtime PM leak on request error path

State: Published
Severity: Not scored
Published: Oct 18, 2026
Updated: Oct 19, 2026
Reserved: Sep 25, 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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 to before e380fba02908b809f5bbef371259003cf5887bb4Affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 to before a3e9b7f7c9558f8c9592f8f817557bff98707bb3Affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 to before 60a76cdd92e25f576dc58d756a565760dde1f7a1Affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 to before 25c08be2a5e7715f19a6e02bbe9b0e5f01c77aacAffected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 to before 6e05f1c614a57a5d4c364dd12e20c6fd012f9d3eAffected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 to before 58a417a19d80141fff3abe6004e2e47285506e73Affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 to before 6e20dabffbcd7b222d8e7bb85a7d8e8325df7699Affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 to before e9438ab5328a177c9c0e5df87eb92a7162841e98Affected
LinuxLinux	3.17Affected before 3.17Not affected 5.10.271 through 5.10.Not affected 5.15.222 through 5.15.Not affected 6.1.189 through 6.1.Not affected 6.6.158 through 6.6.Not affected 6.12.112 through 6.12.Not affected 6.18.55 through 6.18.Not affected 7.2.9 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 to before e380fba02908b809f5bbef371259003cf5887bb4Affected
3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 to before a3e9b7f7c9558f8c9592f8f817557bff98707bb3Affected
3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 to before 60a76cdd92e25f576dc58d756a565760dde1f7a1Affected
3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 to before 25c08be2a5e7715f19a6e02bbe9b0e5f01c77aacAffected
3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 to before 6e05f1c614a57a5d4c364dd12e20c6fd012f9d3eAffected
3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 to before 58a417a19d80141fff3abe6004e2e47285506e73Affected
3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 to before 6e20dabffbcd7b222d8e7bb85a7d8e8325df7699Affected
3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 to before e9438ab5328a177c9c0e5df87eb92a7162841e98Affected

LinuxLinux

3.17Affected
before 3.17Not affected
5.10.271 through 5.10.*Not affected
5.15.222 through 5.15.*Not affected
6.1.189 through 6.1.*Not affected
6.6.158 through 6.6.*Not affected
6.12.112 through 6.12.*Not affected
6.18.55 through 6.18.*Not affected
7.2.9 through 7.2.*Not affected
7.3 and laterNot affected

References

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