CVE-2025-38266

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> pinctrl: mediatek: eint: Fix invalid pointer dereference for v1 platforms<br /> <br /> Commit 3ef9f710efcb ("pinctrl: mediatek: Add EINT support for multiple<br /> addresses") introduced an access to the &amp;#39;soc&amp;#39; field of struct<br /> mtk_pinctrl in mtk_eint_do_init() and for that an include of<br /> pinctrl-mtk-common-v2.h.<br /> <br /> However, pinctrl drivers relying on the v1 common driver include<br /> pinctrl-mtk-common.h instead, which provides another definition of<br /> struct mtk_pinctrl that does not contain an &amp;#39;soc&amp;#39; field.<br /> <br /> Since mtk_eint_do_init() can be called both by v1 and v2 drivers, it<br /> will now try to dereference an invalid pointer when called on v1<br /> platforms. This has been observed on Genio 350 EVK (MT8365), which<br /> crashes very early in boot (the kernel trace can only be seen with<br /> earlycon).<br /> <br /> In order to fix this, since &amp;#39;struct mtk_pinctrl&amp;#39; was only needed to get<br /> a &amp;#39;struct mtk_eint_pin&amp;#39;, make &amp;#39;struct mtk_eint_pin&amp;#39; a parameter<br /> of mtk_eint_do_init() so that callers need to supply it, removing<br /> mtk_eint_do_init()&amp;#39;s dependency on any particular &amp;#39;struct mtk_pinctrl&amp;#39;.