CVE-2025-37850

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> pwm: mediatek: Prevent divide-by-zero in pwm_mediatek_config()<br /> <br /> With CONFIG_COMPILE_TEST &amp;&amp; !CONFIG_HAVE_CLK, pwm_mediatek_config() has a<br /> divide-by-zero in the following line:<br /> <br /> do_div(resolution, clk_get_rate(pc-&gt;clk_pwms[pwm-&gt;hwpwm]));<br /> <br /> due to the fact that the !CONFIG_HAVE_CLK version of clk_get_rate()<br /> returns zero.<br /> <br /> This is presumably just a theoretical problem: COMPILE_TEST overrides<br /> the dependency on RALINK which would select COMMON_CLK. Regardless it&amp;#39;s<br /> a good idea to check for the error explicitly to avoid divide-by-zero.<br /> <br /> Fixes the following warning:<br /> <br /> drivers/pwm/pwm-mediatek.o: warning: objtool: .text: unexpected end of section<br /> <br /> [ukleinek: s/CONFIG_CLK/CONFIG_HAVE_CLK/]