Commit 5402941691dff1c9a18b353c997a834e5ce5946f
2013-02-04T10:22:10
Use heap ram for coinbase in gen_stratum_work, zeroing it before use.
diff --git a/cgminer.c b/cgminer.c
index 32fd47a..71b663b 100644
--- a/cgminer.c
+++ b/cgminer.c
@@ -5102,7 +5102,7 @@ static void gen_stratum_work(struct pool *pool, struct work *work)
len = cb1_len + n1_len + pool->n2size + cb2_len;
alloc_len = len;
align_len(&alloc_len);
- coinbase = alloca(alloc_len);
+ coinbase = calloc(alloc_len, 1);
hex2bin(coinbase, pool->swork.coinbase1, cb1_len);
hex2bin(coinbase + cb1_len, pool->nonce1, n1_len);
hex2bin(coinbase + cb1_len + n1_len, work->nonce2, pool->n2size);
@@ -5110,6 +5110,7 @@ static void gen_stratum_work(struct pool *pool, struct work *work)
/* Generate merkle root */
gen_hash(coinbase, merkle_root, len);
+ free(coinbase);
memcpy(merkle_sha, merkle_root, 32);
for (i = 0; i < pool->swork.merkles; i++) {
unsigned char merkle_bin[32];