Commits
Dmitry V. Levin committed ed3bb007021
csky: Fix syscall_get_arguments() and syscall_set_arguments() C-SKY syscall arguments are located in orig_a0,a1,a2,a3,regs[0],regs[1] fields of struct pt_regs. Due to an off-by-one bug and a bug in pointer arithmetic syscall_get_arguments() was reading orig_a0,regs[1..5] fields instead. Likewise, syscall_set_arguments() was writing orig_a0,regs[1..5] fields instead. Link: http://lkml.kernel.org/r/20190329171230.GB32456@altlinux.org Fixes: 4859bfca11c7d ("csky: System Call") Cc: Ingo Molnar <mingo@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Will Drewry <wad@chromium.org> Cc: stable@vger.kernel.org # v4.20+ Tested-by: Guo Ren <ren_guo@c-sky.com> Acked-by: Guo Ren <ren_guo@c-sky.com> Signed-off-by: Dmitry V. Levin <ldv@altlinux.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>