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Add more buffer boundary checks in wasm loader (#2734)

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And fix exception not printed in `iwasm --repl` mode and resize the memory
data size to UINT32_MAX if the initial page number is 65536.
This commit is contained in:
Wenyong Huang
2023-11-09 08:42:05 +08:00
committed by GitHub
parent cc23c7ee7d
commit 7f8292ffd1
5 changed files with 22 additions and 1 deletions
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6
core/iwasm/interpreter/wasm_runtime.c
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@ -276,6 +276,12 @@ memory_instantiate(WASMModuleInstance *module_inst, WASMModuleInstance *parent,
if (max_page_count > DEFAULT_MAX_PAGES)
max_page_count = DEFAULT_MAX_PAGES;
}
else { /* heap_size == 0 */
if (init_page_count == DEFAULT_MAX_PAGES) {
num_bytes_per_page = UINT32_MAX;
init_page_count = max_page_count = 1;
}
}
LOG_VERBOSE("Memory instantiate:");
LOG_VERBOSE(" page bytes: %u, init pages: %u, max pages: %u",