From d592e76dea61bea5c65c77b1fef968e023ddf109 Mon Sep 17 00:00:00 2001 From: Simone Date: Tue, 20 Feb 2024 19:46:09 +0100 Subject: [PATCH 1/2] Track storage variables read/written in assembly --- slither/core/cfg/node.py | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/slither/core/cfg/node.py b/slither/core/cfg/node.py index 9b53b0db9..87d0e16a2 100644 --- a/slither/core/cfg/node.py +++ b/slither/core/cfg/node.py @@ -11,6 +11,7 @@ from slither.core.declarations.solidity_variables import ( SolidityFunction, ) from slither.core.expressions.expression import Expression +from slither.core.expressions import CallExpression, Identifier, AssignmentOperation from slither.core.solidity_types import ElementaryType from slither.core.source_mapping.source_mapping import SourceMapping from slither.core.variables.local_variable import LocalVariable @@ -898,6 +899,21 @@ class Node(SourceMapping): # pylint: disable=too-many-public-methods # TODO: consider removing dependancy of solidity_call to internal_call self._solidity_calls.append(ir.function) self._internal_calls.append(ir.function) + if ( + isinstance(ir, SolidityCall) + and ir.function == SolidityFunction("sstore(uint256,uint256)") + and isinstance(ir.node.expression, CallExpression) + and isinstance(ir.node.expression.arguments[0], Identifier) + ): + self._vars_written.append(ir.arguments[0]) + if ( + isinstance(ir, SolidityCall) + and ir.function == SolidityFunction("sload(uint256)") + and isinstance(ir.node.expression, AssignmentOperation) + and isinstance(ir.node.expression.expression_right, CallExpression) + and isinstance(ir.node.expression.expression_right.arguments[0], Identifier) + ): + self._vars_read.append(ir.arguments[0]) if isinstance(ir, LowLevelCall): assert isinstance(ir.destination, (Variable, SolidityVariable)) self._low_level_calls.append((ir.destination, str(ir.function_name.value))) From 801a13e6004b3fdd66ea6689d823e5581dff29e7 Mon Sep 17 00:00:00 2001 From: alpharush <0xalpharush@protonmail.com> Date: Thu, 29 Feb 2024 11:13:26 -0600 Subject: [PATCH 2/2] add regression test for https://github.com/crytic/slither/issues/2325 --- .../0.8.0/const_state_variables.sol | 9 +++++++-- .../0.8.0/const_state_variables.sol-0.8.0.zip | Bin 8365 -> 8993 bytes 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/tests/e2e/detectors/test_data/constable-states/0.8.0/const_state_variables.sol b/tests/e2e/detectors/test_data/constable-states/0.8.0/const_state_variables.sol index f405a1587..00b0955c8 100644 --- a/tests/e2e/detectors/test_data/constable-states/0.8.0/const_state_variables.sol +++ b/tests/e2e/detectors/test_data/constable-states/0.8.0/const_state_variables.sol @@ -66,7 +66,7 @@ contract Good { uint immutable should_be_immutable_3 = 10 + block.number; B immutable should_be_immutable_4 = new B(); uint immutable should_be_immutable_5; - + uint blobBaseFee; constructor(uint b) { should_be_immutable_5 = b; } @@ -74,5 +74,10 @@ contract Good { function getNumber() public returns(uint){ return block.number; } - + + function updateBlobBaseFee(uint _blobBaseFee) public { + assembly { + sstore(blobBaseFee.slot, _blobBaseFee) + } + } } \ No newline at end of file diff --git a/tests/e2e/detectors/test_data/constable-states/0.8.0/const_state_variables.sol-0.8.0.zip b/tests/e2e/detectors/test_data/constable-states/0.8.0/const_state_variables.sol-0.8.0.zip index d04c3f8e79c1a87787c6abc5a9ca6fb901b42ddb..7afd3884bb35261471e4fb871c6da2a5f91b454f 100644 GIT binary patch delta 8759 zcmV-7BFNpXL7_$%P)h>@KL7#%4giZ;U08hMkIiKw005~nkr?ZLDuHFl)o+W9v!yzr zEP`=M=IUlWt=odX{Rr*_VVcxgC*%Q(u^E?hivrK+`x1`^>hCa~a|jVCNzhs*;M025 zKRjj`42?i?hN@9~RVOR#_w7VlA4;BDYZ%+Ze34=xi$p!xdESRXj7@7sQ}$eOh{W;l zJ-;L~%W9p2tq-q%0UBt|!7;IC*F-kxLx>2fBcjDRdu0f2A z99-NP2dTbudj5VN)ibdC6W6D2qXDYq3gfGe+eB}UpT7Nnjc}q@?ELdp&l!eTR81SfpdV8#c8*PG^McUa9Qet>&y|W`5Pz-NNb3U2 zuzw&9frSU+A;$)`OlIMR3HXN$WFO13}xPuq-DZoEb3<74;5SFOmWts_S{M*eQ 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