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Limit the minimal size of bh_hashmap (#2073)

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Limit the minimal size of bh_hashmap to avoid creating hashmap with size 0,
and `divide by zero` when calling bh_hash_map_find.

Reported by #2008.
This commit is contained in:
Wenyong Huang 2023-03-28 14:50:31 +08:00 committed by GitHub
parent 0a7994ac0a
commit 8ee8ab3099
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2 changed files with 6 additions and 0 deletions
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3
core/shared/utils/bh_hashmap.c
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@ -33,6 +33,9 @@ bh_hash_map_create(uint32 size, bool use_lock, HashFunc hash_func,
HashMap *map; HashMap *map;
uint64 total_size; uint64 total_size;
if (size < HASH_MAP_MIN_SIZE)
size = HASH_MAP_MIN_SIZE;
if (size > HASH_MAP_MAX_SIZE) { if (size > HASH_MAP_MAX_SIZE) {
LOG_ERROR("HashMap create failed: size is too large.\n"); LOG_ERROR("HashMap create failed: size is too large.\n");
return NULL; return NULL;

3
core/shared/utils/bh_hashmap.h
View File

@ -12,6 +12,9 @@
extern "C" { extern "C" {
#endif #endif
/* Minimum initial size of hash map */
#define HASH_MAP_MIN_SIZE 4
/* Maximum initial size of hash map */ /* Maximum initial size of hash map */
#define HASH_MAP_MAX_SIZE 65536 #define HASH_MAP_MAX_SIZE 65536