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fix: track implicit SLOAD within SSTORE for OOG cases #18

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Merged
merged 1 commit into from
Oct 14, 2025
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fix: track implicit SLOAD within SSTORE for OOG cases #18

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9 changes: 9 additions & 0 deletions src/ethereum/forks/amsterdam/vm/instructions/storage.py
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Original file line number Diff line number Diff line change
Expand Up @@ -100,6 +100,15 @@ def sstore(evm: Evm) -> None:
)
current_value = get_storage(state, evm.message.current_target, key)

# Track the implicit SLOAD that occurs in SSTORE
# This must happen BEFORE charge_gas() so reads are recorded even if OOG
track_storage_read(
state.change_tracker,
evm.message.current_target,
key,
evm.message.block_env.state,
)

gas_cost = Uint(0)

if (evm.message.current_target, key) not in evm.accessed_storage_keys:
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