bitcoin/libblkmaker
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Bugfix: blkmk_append_coinbase_safe: Check for an incomplete generation transaction

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This commit is contained in:
Luke Dashjr 2016-08-15 21:58:14 +00:00
parent 76db08733f
commit 498221e0b1
1 changed files with 3 additions and 0 deletions
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3
blkmaker.c
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@ -423,6 +423,9 @@ ssize_t blkmk_append_coinbase_safe2(blktemplate_t * const tmpl, const void * con
if (extranoncesz < sizeof(unsigned int))
extranoncesz = sizeof(unsigned int);
}
if (tmpl->cbtxn->datasz <= cbScriptSigLen || tmpl->cbtxn->datasz <= cbScriptSigLen + tmpl->cbtxn->data[cbScriptSigLen]) {
return -6;
}
if (extranoncesz > libblkmaker_coinbase_size_limit || tmpl->cbtxn->data[cbScriptSigLen] > libblkmaker_coinbase_size_limit || extranoncesz + tmpl->cbtxn->data[cbScriptSigLen] > libblkmaker_coinbase_size_limit) {
return -5;
}