On Thu, 9 Jun 2022 23:32:45 +1000, Michael Ellerman wrote:
The ptrace PEEKUSR/POKEUSR (aka PEEKUSER/POKEUSER) API allows a process
to read/write registers of another process.
To get/set a register, the API takes an index into an imaginary address
space called the "USER area", where the registers of the process are
laid out in some fashion.
[...]
Applied to powerpc/fixes.
[1/1] powerpc/32: Fix overread/overwrite of thread_struct via ptrace
https://git.kernel.org/powerpc/c/8e1278444446fc97778a5e5c99bca1ce0bbc5ec9
cheers