CVE-2025-40030

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxf913cfce4ee49a3382a9ff95696f49a46e56e974 < 1a7fc8fed2bb2e113604fde7a45432ace2056b97affected
LinuxLinuxf913cfce4ee49a3382a9ff95696f49a46e56e974 < e7265dc4c670b89611bcf5fe33acf99bc0aa294faffected
LinuxLinuxf913cfce4ee49a3382a9ff95696f49a46e56e974 < d77ef2f621cd1d605372c4c6ce667c496f6990c3affected
LinuxLinuxf913cfce4ee49a3382a9ff95696f49a46e56e974 < ba7f7c2b2b3261e7def67018c38c69b626e0e66eaffected
LinuxLinuxf913cfce4ee49a3382a9ff95696f49a46e56e974 < 1a2ea887a5cd7d47bab599f733d89444df018b1aaffected
LinuxLinuxf913cfce4ee49a3382a9ff95696f49a46e56e974 < 688c688e0bf55824f4a38f8c2180046f089a3e3baffected
LinuxLinuxf913cfce4ee49a3382a9ff95696f49a46e56e974 < b7e0535060a60cc99eafc19cc665d979714cd73aaffected
LinuxLinuxf913cfce4ee49a3382a9ff95696f49a46e56e974 < 4002ee98c022d671ecc1e4a84029e9ae7d8a5603affected
LinuxLinux4.19affected
LinuxLinux0 < 4.19unaffected
LinuxLinux5.4.301 <= 5.4.*unaffected
LinuxLinux5.10.246 <= 5.10.*unaffected
LinuxLinux5.15.195 <= 5.15.*unaffected
LinuxLinux6.1.156 <= 6.1.*unaffected
LinuxLinux6.6.112 <= 6.6.*unaffected
LinuxLinux6.12.53 <= 6.12.*unaffected
LinuxLinux6.17.3 <= 6.17.*unaffected
LinuxLinux6.18 <= *unaffected

Weaknesses

References