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CVEs-PoC/2025/CVE-2025-22012.md
2025-09-29 21:09:30 +02:00

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CVE-2025-22012

Description

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

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