On Mon, 15 Nov 2021 09:52:55 +0100, Christophe Leroy wrote:
> The conversion from __copy_from_user() to __get_user() by
> commit d3ccc9781560 ("powerpc/signal: Use __get_user() to copy
> sigset_t") introduced a regression in __get_user_sigset() for
> powerpc/32. The bug was subsequently moved into
> unsafe_get_user_sigset().
>
> The bug is due to the copied 64 bit value being truncated to
> 32 bits while being assigned to dst->sig[0]
>
> [...]
Applied to powerpc/fixes.
[1/1] powerpc/signal32: Fix sigset_t copy
https://git.kernel.org/powerpc/c/5499802b2284331788a440585869590f1bd63f7f
cheers
