diff --git a/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c b/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c
index 9818771a35e5..84220359c957 100644
--- a/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c
+++ b/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c
@@ -121,7 +121,8 @@ static const char *const pipe_id_to_str[] = {
 	/* [IA_CSS_PIPE_ID_YUVPP]     =*/ "yuvpp",
 };
 
-static char dot_id_input_bin[SH_CSS_MAX_BINARY_NAME + 10];
+/* 27 is combined length of _stage%d(pipe%d)\0. */
+static char dot_id_input_bin[SH_CSS_MAX_BINARY_NAME + 27];
 static char ring_buffer[200];
 
 void ia_css_debug_dtrace(unsigned int level, const char *fmt, ...)