diff --git a/drivers/ipm/ipm_imx.c b/drivers/ipm/ipm_imx.c
index 65e525f815a..da8a450982b 100644
--- a/drivers/ipm/ipm_imx.c
+++ b/drivers/ipm/ipm_imx.c
@@ -175,7 +175,7 @@ static int imx_mu_ipm_send(const struct device *dev, int wait, uint32_t id,
 		return -EINVAL;
 	}
 
-	if (size > CONFIG_IPM_IMX_MAX_DATA_SIZE) {
+	if ((size < 0) || (size > CONFIG_IPM_IMX_MAX_DATA_SIZE)) {
 		return -EMSGSIZE;
 	}