5.5

CVE-2026-64241

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]
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxLinux Kernel Version >= 5.15 < 6.12.96
LinuxLinux Kernel Version >= 6.13 < 6.18.35
LinuxLinux Kernel Version >= 6.19 < 7.0.12
LinuxLinux Kernel Version7.1 Updaterc1
LinuxLinux Kernel Version7.1 Updaterc2
LinuxLinux Kernel Version7.1 Updaterc3
LinuxLinux Kernel Version7.1 Updaterc4
LinuxLinux Kernel Version7.1 Updaterc5
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.11% 0.017
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

https://git.kernel.org/stable/c/cdc603ce3118232712ba443dd8b414d8f25ca467
Patch
https://git.kernel.org/stable/c/7f945f7f10f442270518dfd768d230227c495fcf
Patch
https://git.kernel.org/stable/c/6be81e77e1748665d7ddab9128ff1d35eb75b87d
Patch
https://git.kernel.org/stable/c/9500077678230e36d22bf16d2b9539c13e59a801
Patch