From e910cf61693c8c933c11c726c88eec82a6da0a76 Mon Sep 17 00:00:00 2001 From: "Yukihiro \"Matz\" Matsumoto" Date: Tue, 8 Aug 2017 01:54:43 +0900 Subject: Check if `ptr` is NULL before calling `memset`; fix #3765 --- src/backtrace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/backtrace.c') diff --git a/src/backtrace.c b/src/backtrace.c index f04395597..0f5240f6f 100644 --- a/src/backtrace.c +++ b/src/backtrace.c @@ -206,7 +206,7 @@ packed_backtrace(mrb_state *mrb) each_backtrace(mrb, ciidx, mrb->c->ci->pc, count_backtrace_i, &len); size = len * sizeof(struct backtrace_location); ptr = mrb_malloc(mrb, size); - memset(ptr, 0, size); + if (ptr) memset(ptr, 0, size); backtrace = mrb_data_object_alloc(mrb, NULL, ptr, &bt_type); backtrace->flags = (unsigned int)len; each_backtrace(mrb, ciidx, mrb->c->ci->pc, pack_backtrace_i, &ptr); -- cgit v1.2.3