On Tue, 10 Jan 2023 23:47:52 +1100, Michael Ellerman wrote:
> If a relocatable kernel is loaded at an address that is not 2MB aligned
> and told not to relocate to zero, the kernel can crash due to
> mark_rodata_ro() incorrectly changing some read-write data to read-only.
>
> Scenarios where the misalignment can occur are when the kernel is
> loaded by kdump or using the RELOCATABLE_TEST config option.
>
> [...]
Applied to powerpc/fixes.
[1/2] powerpc/64s/radix: Fix crash with unaligned relocated kernel
https://git.kernel.org/powerpc/c/98d0219e043e09013e883eacde3b93e0b2bf944d
[2/2] powerpc/64s/radix: Fix RWX mapping with relocated kernel
https://git.kernel.org/powerpc/c/111bcb37385353f0510e5847d5abcd1c613dba23
cheers
