diff --git a/arch/arm64/configs/vendor/genericarmv8-64_defconfig b/arch/arm64/configs/vendor/genericarmv8-64_defconfig
index 846181938431..92d6bef59fbd 100644
--- a/arch/arm64/configs/vendor/genericarmv8-64_defconfig
+++ b/arch/arm64/configs/vendor/genericarmv8-64_defconfig
@@ -349,7 +349,7 @@ CONFIG_INDIRECT_PIO=y
 CONFIG_CRC_ITU_T=y
 CONFIG_CRC7=y
 CONFIG_DMA_CMA=y
-CONFIG_CMA_SIZE_MBYTES=32
+CONFIG_CMA_SIZE_MBYTES=8
 CONFIG_PRINTK_TIME=y
 CONFIG_DYNAMIC_DEBUG=y
 CONFIG_DEBUG_INFO=y