Re: [PATCH 16/20] signal/sparc32: In setup_rt_frame and setup_fram use force_fatal_sig

[Kees Cook]

On Wed, Oct 20, 2021 at 12:44:02PM -0500, Eric W. Biederman wrote:
> Modify the 32bit version of setup_rt_frame and setup_frame to act
> similar to the 64bit version of setup_rt_frame and fail with a signal
> instead of calling do_exit.
> 
> Replacing do_exit(SIGILL) with force_fatal_signal(SIGILL) ensures that
> the process will be terminated cleanly when the stack frame is
> invalid, instead of just killing off a single thread and leaving the
> process is a weird state.
> 
> Cc: David Miller <davem@xxxxxxxxxxxxx>
> Cc: sparclinux@xxxxxxxxxxxxxxx
> Signed-off-by: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>

Nicely already had the return path written. :)

Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>

-- 
Kees Cook