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Check arguments before calling bh_hash_map_find (#3055)

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Check whether the arguments are NULL before calling bh_hash_map_find,
or lots of "HashMap find elem failed: map or key is NULL" warnings may
be dumped. Reported in #3053.
This commit is contained in:
Wenyong Huang 2024-01-19 19:29:21 +08:00 committed by GitHub
parent 17b0111577
commit ec6d9cb6be
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GPG Key ID: B5690EEEBB952194
2 changed files with 15 additions and 4 deletions
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5
core/iwasm/common/wasm_shared_memory.c
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@ -176,8 +176,9 @@ acquire_wait_info(void *address, AtomicWaitNode *wait_node)
AtomicWaitInfo *wait_info = NULL;
bh_list_status ret;
if (address)
wait_info = (AtomicWaitInfo *)bh_hash_map_find(wait_map, address);
bh_assert(address != NULL);
wait_info = (AtomicWaitInfo *)bh_hash_map_find(wait_map, address);
if (!wait_node) {
return wait_info;

14
core/iwasm/libraries/lib-pthread/lib_pthread_wrapper.c
View File

@ -468,7 +468,7 @@ get_thread_info(wasm_exec_env_t exec_env, uint32 handle)
WASMCluster *cluster = wasm_exec_env_get_cluster(exec_env);
ClusterInfoNode *info = get_cluster_info(cluster);
if (!info) {
if (!info || !handle) {
return NULL;
}
@ -1144,6 +1144,10 @@ sem_open_wrapper(wasm_exec_env_t exec_env, const char *name, int32 oflags,
* For Unix like system, it's dedicated for multiple processes.
*/
if (!name) { /* avoid passing NULL to bh_hash_map_find and os_sem_open */
return -1;
}
if ((info_node = bh_hash_map_find(sem_info_map, (void *)name))) {
return info_node->handle;
}
@ -1276,7 +1280,13 @@ sem_unlink_wrapper(wasm_exec_env_t exec_env, const char *name)
(void)exec_env;
int32 ret_val;
ThreadInfoNode *info_node = bh_hash_map_find(sem_info_map, (void *)name);
ThreadInfoNode *info_node;
if (!name) { /* avoid passing NULL to bh_hash_map_find */
return -1;
}
info_node = bh_hash_map_find(sem_info_map, (void *)name);
if (!info_node || info_node->type != T_SEM)
return -1;