diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c
index 23d8aaf8d9fd..449a6ed0b8c9 100644
--- a/arch/x86/kernel/signal_64.c
+++ b/arch/x86/kernel/signal_64.c
@@ -260,15 +260,15 @@ SYSCALL_DEFINE0(rt_sigreturn)
 
 	set_current_blocked(&set);
 
+	if (restore_altstack(&frame->uc.uc_stack))
+		goto badframe;
+
 	if (!restore_sigcontext(regs, &frame->uc.uc_mcontext, uc_flags))
 		goto badframe;
 
 	if (restore_signal_shadow_stack())
 		goto badframe;
 
-	if (restore_altstack(&frame->uc.uc_stack))
-		goto badframe;
-
 	return regs->ax;
 
 badframe: