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[bsp]Fixed a stack overflow bug in drv_crypto.c

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Added if null before used.
This commit is contained in:
David Lin
2020-03-14 23:11:37 +08:00
committed by GitHub
parent 891e4794c0
commit 45ae555a0b
1 changed files with 5 additions and 0 deletions
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bsp/stm32/libraries/HAL_Drivers/drv_crypto.c
+5
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@@ -168,6 +168,11 @@ static rt_err_t _crypto_create(struct rt_hwcrypto_ctx *ctx)
case HWCRYPTO_TYPE_RNG: case HWCRYPTO_TYPE_RNG:
{ {
RNG_HandleTypeDef *hrng = rt_calloc(1, sizeof(RNG_HandleTypeDef)); RNG_HandleTypeDef *hrng = rt_calloc(1, sizeof(RNG_HandleTypeDef));
if (RT_NULL == hrng)
{
res = -RT_ERROR;
break;
}
hrng->Instance = RNG; hrng->Instance = RNG;
HAL_RNG_Init(hrng); HAL_RNG_Init(hrng);