CVE-2025-40030

In the Linux kernel, the following vulnerability has been resolved:

pinctrl: check the return value of pinmux_ops::get_function_name()

While the API contract in docs doesn’t specify it explicitly, the
generic implementation of the get_function_name() callback from struct
pinmux_ops – pinmux_generic_get_function_name() – can fail and return
NULL. This is already checked in pinmux_check_ops() so add a similar
check in pinmux_func_name_to_selector() instead of passing the returned
pointer right down to strcmp() where the NULL can get dereferenced. This
is normal operation when adding new pinfunctions.

More information : https://git.kernel.org/stable/c/1a2ea887a5cd7d47bab599f733d89444df018b1a