gpio: rockchip: teardown bugs and resource leaks

Summary

CVE	CVE-2026-64241
State	PUBLISHED
Assigner	Linux
Source Priority	CVE Program / NVD first with legacy fallback
Published	2026-07-24 16:16:53 UTC
Updated	2026-08-13 17:21:38 UTC
Description	In 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]

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.001560000 probability, percentile 0.052850000 (date 2026-08-03)

Problem Types: CWE-401

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Type	Vendor	Product	Version	Update	Edition	Language
Operating System	Linux	Linux Kernel	All	All	All	All

Source	Vendor	Product	Version	Platforms
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

Reference	Source	Link	Tags
git.kernel.org/stable/c/cdc603ce3118232712ba443dd8b414d8f25ca467	416baaa9-dc9f-4396-8d5f-8c081fb06d67	git.kernel.org	Patch
git.kernel.org/stable/c/7f945f7f10f442270518dfd768d230227c495fcf	416baaa9-dc9f-4396-8d5f-8c081fb06d67	git.kernel.org	Patch
git.kernel.org/stable/c/6be81e77e1748665d7ddab9128ff1d35eb75b87d	416baaa9-dc9f-4396-8d5f-8c081fb06d67	git.kernel.org	Patch
git.kernel.org/stable/c/9500077678230e36d22bf16d2b9539c13e59a801	416baaa9-dc9f-4396-8d5f-8c081fb06d67	git.kernel.org	Patch
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

There are currently no legacy QID mappings associated with this CVE.