In the Linux kernel, the following vulnerability has been...
Moderate severity
Unreviewed
Published
Apr 8, 2025
to the GitHub Advisory Database
•
Updated Apr 10, 2025
Description
Published by the National Vulnerability Database
Apr 8, 2025
Published to the GitHub Advisory Database
Apr 8, 2025
Last updated
Apr 10, 2025
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 a
given across the spectrum of SDM845/850 devices, leading to lock-ups
and 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, where
likely somewhere in the vast hypervisor stack, a change to accommodate
for this was only introduced after the initial software release (which
often serves as a baseline for products).
Revert the change to avoid additional guesswork around crashes.
This reverts commit 6b31a9744b8726c69bb0af290f8475a368a4b805.
References