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wolfcrypt/src/random.c: in _InitRng(), remove "drbg_instantiated" conditional cleanup logic (Coverity true-benign-positive: DEADCODE because drbg_instantiated is always false when ret != DRBG_SUCCESS).

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Daniel Pouzzner
2025-12-19 10:30:14 -06:00
parent fb26b2dfe1
commit 6f95a9c58e
1 changed files with 0 additions and 5 deletions
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5
wolfcrypt/src/random.c
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@@ -813,7 +813,6 @@ static int _InitRng(WC_RNG* rng, byte* nonce, word32 nonceSz,
#ifdef HAVE_HASHDRBG
word32 seedSz = SEED_SZ + SEED_BLOCK_SZ;
WC_DECLARE_VAR(seed, byte, MAX_SEED_SZ, rng->heap);
int drbg_instantiated = 0;
#ifdef WOLFSSL_SMALL_STACK_CACHE
int drbg_scratch_instantiated = 0;
#endif
@@ -1020,8 +1019,6 @@ static int _InitRng(WC_RNG* rng, byte* nonce, word32 nonceSz,
ret = Hash_DRBG_Instantiate((DRBG_internal *)rng->drbg,
seed + SEED_BLOCK_SZ, seedSz - SEED_BLOCK_SZ,
nonce, nonceSz, rng->heap, devId);
if (ret == 0)
drbg_instantiated = 1;
} /* ret == 0 */
#ifdef WOLFSSL_SMALL_STACK
@@ -1033,8 +1030,6 @@ static int _InitRng(WC_RNG* rng, byte* nonce, word32 nonceSz,
WC_FREE_VAR_EX(seed, rng->heap, DYNAMIC_TYPE_SEED);
if (ret != DRBG_SUCCESS) {
if (drbg_instantiated)
(void)Hash_DRBG_Uninstantiate((DRBG_internal *)rng->drbg);
#if !defined(WOLFSSL_NO_MALLOC) || defined(WOLFSSL_STATIC_MEMORY)
XFREE(rng->drbg, rng->heap, DYNAMIC_TYPE_RNG);
#endif