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Add safety to dummy_random in case of NULL context

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Signed-off-by: Paul Elliott <paul.elliott@arm.com>
This commit is contained in:
Paul Elliott 2022-02-14 18:26:21 +00:00
parent bb0168144e
commit a1dc3e5a60
1 changed files with 5 additions and 2 deletions
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7
programs/fuzz/common.c
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@ -60,8 +60,11 @@ int dummy_random( void *p_rng, unsigned char *output, size_t output_len )
size_t i;
#if defined(MBEDTLS_CTR_DRBG_C)
//use mbedtls_ctr_drbg_random to find bugs in it
ret = mbedtls_ctr_drbg_random(p_rng, output, output_len);
//mbedtls_ctr_drbg_random requires a valid mbedtls_ctr_drbg_context in p_rng
if( p_rng != NULL ) {
//use mbedtls_ctr_drbg_random to find bugs in it
ret = mbedtls_ctr_drbg_random(p_rng, output, output_len);
}
#else
(void) p_rng;
ret = 0;