On Thu, 23 Nov 2023 12:47:05 +0530, Naveen N Rao wrote:

Some of the fp/vmx code in sstep.c assume a certain maximum size for the
instructions being emulated. The size of those operations however is
determined separately in analyse_instr().

Add a check to validate the assumption on the maximum size of the
operations, so as to prevent any unintended kernel stack corruption.

[...]

Applied to powerpc/next.

[1/1] powerpc/lib: Validate size for vector operations
      https://git.kernel.org/powerpc/c/8f9abaa6d7de0a70fc68acaedce290c1f96e2e59

cheers