[sr-dev] git:master:136071c4: core: re - check source of memcpy

Module: kamailio Branch: master Commit: 136071c4a3cd306ef1043b02d1b61ce7d37efa52 URL: https://github.com/kamailio/kamailio/commit/136071c4a3cd306ef1043b02d1b61ce… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: 2021-11-19T08:25:45+01:00 core: re - check source of memcpy --- Modified: src/core/re.c --- Diff: https://github.com/kamailio/kamailio/commit/136071c4a3cd306ef1043b02d1b61ce… Patch: https://github.com/kamailio/kamailio/commit/136071c4a3cd306ef1043b02d1b61ce… --- diff --git a/src/core/re.c b/src/core/re.c index 4ce18d8c4d..47322284b6 100644 --- a/src/core/re.c +++ b/src/core/re.c @@ -339,8 +339,10 @@ static int replace_build(const char* match, int nmatch, regmatch_t* pmatch, LM_ERR("Buffer too small\n"); \ goto error; \ } \ - memcpy((dst), (src), (size)); \ - (dst) += (size); + if(likely(src)) { \ + memcpy((dst), (src), (size)); \ + (dst) += (size); \ + } p=se->replacement.s; end=p+se->replacement.len;