iommu/mediatek: Fix crash on isr after kexec()

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powerpc/pseries: Fix scv instruction crash with kexec

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UBUNTU-CVE-2024-42140

In the Linux kernel, the following vulnerability has been resolved: riscv: kexec: Avoid deadlock in kexec crash path If the kexec crash code is called in the interrupt context, the machinekexecmaskinterrupts function will trigger a deadlock while trying to acquire the irqdesc spinlock and then...