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wallet2: validate key image domain in reserve proofs

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Reported by zkao, a tool by zkSecurity
This commit is contained in:
selsta
2026-08-04 00:49:47 +02:00
parent 83405f127d
commit b7817d08f3
1 changed files with 2 additions and 0 deletions
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src/wallet/wallet2.cpp
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@@ -12563,6 +12563,8 @@ bool wallet2::check_reserve_proof(const cryptonote::account_public_address &addr
{ {
THROW_WALLET_EXCEPTION_IF(!seen_key_images.insert(proof.key_image).second, error::wallet_internal_error, "Duplicate key image in reserve proof"); THROW_WALLET_EXCEPTION_IF(!seen_key_images.insert(proof.key_image).second, error::wallet_internal_error, "Duplicate key image in reserve proof");
THROW_WALLET_EXCEPTION_IF(!seen_outputs.emplace(proof.txid, proof.index_in_tx).second, error::wallet_internal_error, "Duplicate output in reserve proof"); THROW_WALLET_EXCEPTION_IF(!seen_outputs.emplace(proof.txid, proof.index_in_tx).second, error::wallet_internal_error, "Duplicate output in reserve proof");
THROW_WALLET_EXCEPTION_IF(rct::ki2rct(proof.key_image) == rct::identity() || !rct::isInMainSubgroup(rct::ki2rct(proof.key_image)),
error::wallet_internal_error, "Invalid key image in reserve proof");
} }
THROW_WALLET_EXCEPTION_IF(subaddr_spendkeys.count(address.m_spend_public_key) == 0, error::wallet_internal_error, THROW_WALLET_EXCEPTION_IF(subaddr_spendkeys.count(address.m_spend_public_key) == 0, error::wallet_internal_error,