gpio: rockchip: teardown bugs and resource leaks

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Summary

CVECVE-2026-64241
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-24 16:16:53 UTC
Updated2026-07-24 16:16:53 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: gpio: rockchip: teardown bugs and resource leaks Address several teardown issues and resource leaks in the driver's remove path and error handling: 1. Debounce clock reference leak: The debounce clock (bank->db_clk) is obtained using of_clk_get() which increments the clock's reference count, but clk_put() is never called. Register a devm action to cleanly release it on unbind. Note that of_clk_get(..., 1) remains necessary over devm_clk_get() because the DT binding does not define clock-names, precluding name-based lookup. 2. Unregistered chained IRQ handler: The chained IRQ handler is not disconnected in remove(). If a stray interrupt fires after the driver is removed, the kernel attempts to execute a stale handler, leading to a panic. Fix this by clearing the handler in remove(). 3. IRQ domain leak: The linear IRQ domain and its generic chips are allocated manually during probe but never removed. Remove the IRQ domain during driver teardown to free the associated generic chips and mappings. [Bartosz: don't emit an error message on devres allocation failure]

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 936ee2675eee1faca0dcdfa79165c7990422e0fc cdc603ce3118232712ba443dd8b414d8f25ca467 git Not specified
CNA Linux Linux affected 936ee2675eee1faca0dcdfa79165c7990422e0fc 7f945f7f10f442270518dfd768d230227c495fcf git Not specified
CNA Linux Linux affected 936ee2675eee1faca0dcdfa79165c7990422e0fc 6be81e77e1748665d7ddab9128ff1d35eb75b87d git Not specified
CNA Linux Linux affected 936ee2675eee1faca0dcdfa79165c7990422e0fc 9500077678230e36d22bf16d2b9539c13e59a801 git Not specified
CNA Linux Linux affected 5.15 Not specified
CNA Linux Linux unaffected 5.15 semver Not specified
CNA Linux Linux unaffected 6.12.96 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.35 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.12 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/cdc603ce3118232712ba443dd8b414d8f25ca467 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7f945f7f10f442270518dfd768d230227c495fcf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6be81e77e1748665d7ddab9128ff1d35eb75b87d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9500077678230e36d22bf16d2b9539c13e59a801 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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