CVE-2025-22012

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> Revert "arm64: dts: qcom: sdm845: Affirm IDR0.CCTW on apps_smmu"<br /> <br /> There are reports that the pagetable walker cache coherency is not a<br /> given across the spectrum of SDM845/850 devices, leading to lock-ups<br /> and resets. It works fine on some devices (like the Dragonboard 845c,<br /> but not so much on the Lenovo Yoga C630).<br /> <br /> This unfortunately looks like a fluke in firmware development, where<br /> likely somewhere in the vast hypervisor stack, a change to accommodate<br /> for this was only introduced after the initial software release (which<br /> often serves as a baseline for products).<br /> <br /> Revert the change to avoid additional guesswork around crashes.<br /> <br /> This reverts commit 6b31a9744b8726c69bb0af290f8475a368a4b805.