CVEvulnerability
CVE-2026-64241
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2026-07-24
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-401
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]
Affected configurations
• linux linux kernel (>= 5.15 < 6.12.96)
• linux linux kernel (>= 6.13 < 6.18.35)
• linux linux kernel (>= 6.19 < 7.0.12)
• linux linux kernel 7.1
Related
Weakness · CWE (1)
- CWE-401 Missing Release of Memory after Effective Lifetime weakness
References
- https://git.kernel.org/stable/c/6be81e77e1748665d7ddab9128ff1d35eb75b87d Patch
- https://git.kernel.org/stable/c/77b6ff33c8f5642f7e7c1ca691857218683264fd git.kernel.org
- https://git.kernel.org/stable/c/7f945f7f10f442270518dfd768d230227c495fcf Patch
- https://git.kernel.org/stable/c/9500077678230e36d22bf16d2b9539c13e59a801 Patch
- https://git.kernel.org/stable/c/cdc603ce3118232712ba443dd8b414d8f25ca467 Patch