Description
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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
f913cfce4ee49a3382a9ff95696f49a46e56e974 to < 1a7fc8fed2bb2e113604fde7a45432ace2056b97affectedf913cfce4ee49a3382a9ff95696f49a46e56e974 to < e7265dc4c670b89611bcf5fe33acf99bc0aa294faffectedf913cfce4ee49a3382a9ff95696f49a46e56e974 to < d77ef2f621cd1d605372c4c6ce667c496f6990c3affectedf913cfce4ee49a3382a9ff95696f49a46e56e974 to < ba7f7c2b2b3261e7def67018c38c69b626e0e66eaffectedf913cfce4ee49a3382a9ff95696f49a46e56e974 to < 1a2ea887a5cd7d47bab599f733d89444df018b1aaffectedf913cfce4ee49a3382a9ff95696f49a46e56e974 to < 688c688e0bf55824f4a38f8c2180046f089a3e3baffectedf913cfce4ee49a3382a9ff95696f49a46e56e974 to < b7e0535060a60cc99eafc19cc665d979714cd73aaffectedf913cfce4ee49a3382a9ff95696f49a46e56e974 to < 4002ee98c022d671ecc1e4a84029e9ae7d8a5603affected
Linux Linux
Default version status: affected
4.19affected0 to < 4.19unaffected5.4.301 to ≤ 5.4.*unaffected5.10.246 to ≤ 5.10.*unaffected5.15.195 to ≤ 5.15.*unaffected6.1.156 to ≤ 6.1.*unaffected6.6.112 to ≤ 6.6.*unaffected6.12.53 to ≤ 6.12.*unaffected6.17.3 to ≤ 6.17.*unaffected6.18 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/1a7fc8fed2bb2e113604fde7a45432ace2056b97 ↗
- https://git.kernel.org/stable/c/e7265dc4c670b89611bcf5fe33acf99bc0aa294f ↗
- https://git.kernel.org/stable/c/d77ef2f621cd1d605372c4c6ce667c496f6990c3 ↗
- https://git.kernel.org/stable/c/ba7f7c2b2b3261e7def67018c38c69b626e0e66e ↗
- https://git.kernel.org/stable/c/1a2ea887a5cd7d47bab599f733d89444df018b1a ↗
- https://git.kernel.org/stable/c/688c688e0bf55824f4a38f8c2180046f089a3e3b ↗
- https://git.kernel.org/stable/c/b7e0535060a60cc99eafc19cc665d979714cd73a ↗
- https://git.kernel.org/stable/c/4002ee98c022d671ecc1e4a84029e9ae7d8a5603 ↗