[sr-dev] git:4.2:fd6dba3b: regex: safety to check to avoid working with zero size allocations

Module: kamailio Branch: 4.2 Commit: fd6dba3b9752e9cbf21da2ca7b66b2e5c1dafce7 URL: https://github.com/kamailio/kamailio/commit/fd6dba3b9752e9cbf21da2ca7b66b2e… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: 2015-05-19T09:34:50+02:00 regex: safety to check to avoid working with zero size allocations (cherry picked from commit 5e5866b2ac8390caa9373f49345ed877c6e5f037) --- Modified: modules/regex/regex_mod.c --- Diff: https://github.com/kamailio/kamailio/commit/fd6dba3b9752e9cbf21da2ca7b66b2e… Patch: https://github.com/kamailio/kamailio/commit/fd6dba3b9752e9cbf21da2ca7b66b2e… --- diff --git a/modules/regex/regex_mod.c b/modules/regex/regex_mod.c index 5b8b5cc..4f714b5 100644 --- a/modules/regex/regex_mod.c +++ b/modules/regex/regex_mod.c @@ -354,6 +354,11 @@ static int load_pcres(int action) fclose(f); + if(num_pcres_tmp==0) { + LM_ERR("no expressions in the file\n"); + goto err; + } + /* Fix the patterns */ for (i=0; i < num_pcres_tmp; i++) {