- Fix crach bug if the parameter to shm_remove is not a valid identifier.

diff --git a/ext/sysvshm/sysvshm.c b/ext/sysvshm/sysvshm.c
index 706da5706744aa4e03e7be024c2c9805126b78c9..dba37181a037b4bb730fc3c684985588bf00e349 100644 (file)
--- a/ext/sysvshm/sysvshm.c
+++ b/ext/sysvshm/sysvshm.c
@@ -208,6 +208,12 @@ PHP_FUNCTION(shm_remove)
        id = Z_LVAL_PP(arg_id);
 
        shm_list_ptr = (sysvshm_shm *) zend_list_find(id, &type);
+
+    if (!shm_list_ptr) {
+        php_error(E_WARNING, "The parameter is not a valid shm_indentifier");
+        RETURN_FALSE;
+    }
+
        if(shmctl(shm_list_ptr->id,IPC_RMID,NULL)<0) {
                php_error(E_WARNING, "shm_remove() failed for key 0x%x, id %i: %s", shm_list_ptr->key, id,strerror(errno));
                RETURN_FALSE;