Fix: unchecked access to pids array
authorJérémie Galarneau <jeremie.galarneau@efficios.com>
Wed, 29 Aug 2018 21:25:04 +0000 (17:25 -0400)
committerJérémie Galarneau <jeremie.galarneau@efficios.com>
Thu, 30 Aug 2018 16:49:44 +0000 (12:49 -0400)
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
src/lib/lttng-ctl/lttng-ctl.c

index c8d60cddcaee5e5bd9e2323c680c5dc710104cfc..d8e2f1428df7fc27560b532c5b3c41ca478c60f8 100644 (file)
@@ -2744,6 +2744,9 @@ int lttng_list_tracker_pids(struct lttng_handle *handle,
                return ret;
        }
        nr_pids = ret / sizeof(int32_t);
+       if (nr_pids > 0 && !pids) {
+               return -LTTNG_ERR_UNK;
+       }
        if (nr_pids == 1 && pids[0] == -1) {
                free(pids);
                pids = NULL;
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