CVE-2026-64241 is a vulnerability in Linux Kernel
Published on July 24, 2026
gpio: rockchip: teardown bugs and resource leaks
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]
Products Associated with CVE-2026-64241
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Affected Versions
Linux:- Version 936ee2675eee1faca0dcdfa79165c7990422e0fc and below cdc603ce3118232712ba443dd8b414d8f25ca467 is affected.
- Version 936ee2675eee1faca0dcdfa79165c7990422e0fc and below 7f945f7f10f442270518dfd768d230227c495fcf is affected.
- Version 936ee2675eee1faca0dcdfa79165c7990422e0fc and below 6be81e77e1748665d7ddab9128ff1d35eb75b87d is affected.
- Version 936ee2675eee1faca0dcdfa79165c7990422e0fc and below 9500077678230e36d22bf16d2b9539c13e59a801 is affected.
- Version 5.15 is affected.
- Before 5.15 is unaffected.
- Version 6.12.96, <= 6.12.* is unaffected.
- Version 6.18.35, <= 6.18.* is unaffected.
- Version 7.0.12, <= 7.0.* is unaffected.
- Version 7.1, <= * is unaffected.