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fix(symbolic): reject oversized memory offsets - #16183

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fix(symbolic): reject oversized memory offsets#16183
stevencartavia wants to merge 16 commits into
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steven/fix-symbolic-memory

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Rejects unrepresentable offsets for symbolic MLOAD, MSTORE, and MSTORE8, matching concrete EVM failure behavior and preventing false passes.

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✅ Changelog found

The deterministic check will validate the changed entry.

mattsse
mattsse previously approved these changes Aug 14, 2026

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lgtm

Comment thread crates/evm/symbolic/src/executor/opcodes.rs
Comment thread crates/forge/tests/cli/test_cmd/symbolic_memory.rs
Comment thread crates/evm/symbolic/src/executor/opcodes.rs Outdated
Comment thread crates/evm/symbolic/src/executor/opcodes.rs
@stevencartavia
stevencartavia requested a review from mablr August 14, 2026 16:43
Comment thread crates/evm/symbolic/src/executor/opcodes.rs Outdated
Comment thread crates/evm/symbolic/src/executor/opcodes.rs Outdated
Comment thread crates/forge/tests/cli/test_cmd/symbolic_memory.rs Outdated
@stevencartavia
stevencartavia requested a review from mablr August 14, 2026 19:54
Comment thread crates/evm/symbolic/src/runtime/state.rs Outdated
Comment thread crates/evm/symbolic/src/runtime/state.rs Outdated
@stevencartavia
stevencartavia requested a review from mablr August 17, 2026 17:10
Comment thread crates/evm/symbolic/src/runtime/memory.rs Outdated
@stevencartavia
stevencartavia requested a review from mablr August 17, 2026 18:38
mablr
mablr previously approved these changes Aug 17, 2026

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found two concrete/symbolic parity blockers and two hot-path representation costs on the current head. the full symbolic crate suite and the focused cli tests pass, but one added regression currently codifies a false proof.

Comment thread crates/evm/symbolic/src/runtime/state.rs Outdated
Comment thread crates/evm/symbolic/src/executor/create.rs Outdated
Comment thread crates/evm/symbolic/src/executor/calls.rs Outdated
Comment thread crates/evm/symbolic/src/runtime/memory.rs Outdated
mablr
mablr previously approved these changes Aug 18, 2026

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I don't see other blockers, sgtm

Comment thread crates/evm/symbolic/src/executor/opcodes.rs
…-memory

Amp-Thread-ID: https://ampcode.com/threads/T-01a01a8e-87d2-70ec-be7e-fed27bfe3644
Co-authored-by: Amp <amp@ampcode.com>

# Conflicts:
#	crates/evm/symbolic/src/runtime/memory.rs
Comment thread crates/evm/symbolic/src/executor/opcodes.rs
Comment thread crates/evm/symbolic/src/executor/opcodes.rs
Comment thread crates/evm/symbolic/src/executor/opcodes.rs
@stevencartavia
stevencartavia requested a review from mablr August 20, 2026 15:35
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4 participants