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

Summary

CVECVE-2026-98527
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-18 16:17:04 UTC
Updated2026-10-18 16:17:04 UTC
DescriptionIn 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.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 e380fba02908b809f5bbef371259003cf5887bb4 git Not specified
CNA Linux Linux affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 a3e9b7f7c9558f8c9592f8f817557bff98707bb3 git Not specified
CNA Linux Linux affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 60a76cdd92e25f576dc58d756a565760dde1f7a1 git Not specified
CNA Linux Linux affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 25c08be2a5e7715f19a6e02bbe9b0e5f01c77aac git Not specified
CNA Linux Linux affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 6e05f1c614a57a5d4c364dd12e20c6fd012f9d3e git Not specified
CNA Linux Linux affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 58a417a19d80141fff3abe6004e2e47285506e73 git Not specified
CNA Linux Linux affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 6e20dabffbcd7b222d8e7bb85a7d8e8325df7699 git Not specified
CNA Linux Linux affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 e9438ab5328a177c9c0e5df87eb92a7162841e98 git Not specified
CNA Linux Linux affected 3.17 Not specified
CNA Linux Linux unaffected 3.17 semver Not specified
CNA Linux Linux unaffected 5.10.271 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.222 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.189 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.158 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.112 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.55 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.9 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/58a417a19d80141fff3abe6004e2e47285506e73 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/25c08be2a5e7715f19a6e02bbe9b0e5f01c77aac 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/60a76cdd92e25f576dc58d756a565760dde1f7a1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6e20dabffbcd7b222d8e7bb85a7d8e8325df7699 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e9438ab5328a177c9c0e5df87eb92a7162841e98 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6e05f1c614a57a5d4c364dd12e20c6fd012f9d3e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a3e9b7f7c9558f8c9592f8f817557bff98707bb3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e380fba02908b809f5bbef371259003cf5887bb4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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