1 files changed, 4 insertions, 2 deletions
diff --git a/hw/ssi/xilinx_spips.c b/hw/ssi/xilinx_spips.c
index 16f88f7402..c615058cc1 100644
--- a/hw/ssi/xilinx_spips.c
+++ b/hw/ssi/xilinx_spips.c
@@ -429,12 +429,14 @@ static void xlnx_zynqmp_qspips_reset(DeviceState *d)
 
 static inline void stripe8(uint8_t *x, int num, bool dir)
 {
-    uint8_t r[num];
-    memset(r, 0, sizeof(uint8_t) * num);
+    uint8_t r[MAX_NUM_BUSSES];
     int idx[2] = {0, 0};
     int bit[2] = {0, 7};
     int d = dir;
 
+    assert(num <= MAX_NUM_BUSSES);
+    memset(r, 0, sizeof(uint8_t) * num);
+
     for (idx[0] = 0; idx[0] < num; ++idx[0]) {
         for (bit[0] = 7; bit[0] >= 0; bit[0]--) {
             r[idx[!d]] |= x[idx[d]] & 1 << bit[d] ? 1 << bit[!d] : 0;