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Fix potential integer overflow issue in wasm-c-api (#1954)

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Fix potential integer overflow issue in wasm-c-api reported by CodeQL
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ocfox 2023-02-13 13:55:50 +08:00 committed by GitHub
parent 89c11c5361
commit 427abf02c8
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 2 deletions
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core/iwasm/common/wasm_c_api.c
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@ -4205,7 +4205,8 @@ wasm_memory_data_size(const wasm_memory_t *memory)
(WASMModuleInstance *)module_inst_comm; (WASMModuleInstance *)module_inst_comm;
WASMMemoryInstance *memory_inst = WASMMemoryInstance *memory_inst =
module_inst->memories[memory->memory_idx_rt]; module_inst->memories[memory->memory_idx_rt];
return memory_inst->cur_page_count * memory_inst->num_bytes_per_page; return (size_t)memory_inst->cur_page_count
* memory_inst->num_bytes_per_page;
} }
#endif #endif
@ -4215,7 +4216,8 @@ wasm_memory_data_size(const wasm_memory_t *memory)
AOTMemoryInstance *memory_inst = AOTMemoryInstance *memory_inst =
((AOTMemoryInstance **) ((AOTMemoryInstance **)
module_inst->memories)[memory->memory_idx_rt]; module_inst->memories)[memory->memory_idx_rt];
return memory_inst->cur_page_count * memory_inst->num_bytes_per_page; return (size_t)memory_inst->cur_page_count
* memory_inst->num_bytes_per_page;
} }
#endif #endif