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prevent data overflow on 32 bit platform for memory.grow

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TL 2025-02-08 17:18:01 +08:00 committed by Marcin Kolny
parent d9c01b39d1
commit dfcadc6202
1 changed files with 6 additions and 0 deletions
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6
core/iwasm/common/wasm_memory.c
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@ -1253,6 +1253,12 @@ wasm_mremap_linear_memory(void *mapped_mem, uint64 old_size, uint64 new_size,
bh_assert(new_size > 0); bh_assert(new_size > 0);
bh_assert(new_size > old_size); bh_assert(new_size > old_size);
#if UINTPTR_MAX == UINT32_MAX
if (new_size == 4 * (uint64)BH_GB) {
return NULL;
}
#endif
if (mapped_mem) { if (mapped_mem) {
new_mem = os_mremap(mapped_mem, old_size, new_size); new_mem = os_mremap(mapped_mem, old_size, new_size);
} }