diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index aca5f3668f4c..bef2f6f2571b 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -434,11 +434,11 @@ static int locate_mem_hole_top_down(unsigned long start, unsigned long end,
 	unsigned long temp_start, temp_end;
 
 	temp_end = min(end, kbuf->buf_max);
-	temp_start = temp_end - kbuf->memsz;
+	temp_start = temp_end - kbuf->memsz + 1;
 
 	do {
 		/* align down start */
-		temp_start = temp_start & (~(kbuf->buf_align - 1));
+		temp_start = ALIGN_DOWN(temp_start, kbuf->buf_align);
 
 		if (temp_start < start || temp_start < kbuf->buf_min)
 			return 0;