{"id":"CVE-2026-90126","published":"2026-09-17T17:17:04.937","lastModified":"2026-09-17T17:17:04.937","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nrtc: pcf8563: fix clock provider leak on unbind\n\npcf8563_clkout_register_clk() registers the CLKOUT clock provider with\nof_clk_add_provider(), but nothing ever unwinds it: there is no\nof_clk_del_provider() call and the driver has no remove callback. Each\nof_clk_add_provider() allocates a struct of_clk_provider, takes a\nreference on the OF node and adds an entry to the global of_clk_providers\nlist, none of which is released when the device is unbound. Every\nbind/unbind (or module reload) therefore leaks a provider structure and\nan of_node reference.\n\nThe clock itself is already device-managed (devm_clk_register()); only\nthe provider registration was not. Use devm_of_clk_add_hw_provider() so\nthe provider is removed automatically on unbind. Tie it to the parent\ni2c device, whose OF node carries the #clock-cells and clock-output-names\nproperties (the RTC class device has no OF node of its own).","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/08a59c28c2bdbcd655e99526c86a41dc83834283","tags":[]},{"url":"https://git.kernel.org/stable/c/2b5622cf4ee218b6f98d31dbf3fbd44b9b6bd675","tags":[]},{"url":"https://git.kernel.org/stable/c/30b7c63af50fe1464e7582a37de1ca4bd030ecc1","tags":[]},{"url":"https://git.kernel.org/stable/c/36cb00c33bd83e7ce31b5a9f1f7c70db0cb7776c","tags":[]},{"url":"https://git.kernel.org/stable/c/6218c0533a72235ec9c5f41b812c63d963bd4a3e","tags":[]},{"url":"https://git.kernel.org/stable/c/7afb8db47c4f107bce89cfe5115fb31ba7c94665","tags":[]},{"url":"https://git.kernel.org/stable/c/97edf3fd9a46ea89a167966991c0449cfa07b36f","tags":[]},{"url":"https://git.kernel.org/stable/c/9c48a53685040bb0de45a640b34055cbbfc69d4f","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}