malloc_object_size: avoid fault for invalid region
It's the region pointer that can be NULL here, and p was checked at the beginning of the function.
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@ -1690,7 +1690,7 @@ EXPORT size_t h_malloc_object_size(void *p) {
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struct region_allocator *ra = ro.region_allocator;
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mutex_lock(&ra->lock);
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struct region_metadata *region = regions_find(p);
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size_t size = p == NULL ? SIZE_MAX : region->size;
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size_t size = region == NULL ? SIZE_MAX : region->size;
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mutex_unlock(&ra->lock);
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thread_seal_metadata();
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