Module: kamailio Branch: master Commit: 702630b484ac6f7c017829c24294ce7552f1682a URL: https://github.com/kamailio/kamailio/commit/702630b484ac6f7c017829c24294ce7… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: 2020-05-12T18:01:15+02:00 imc: reserve last char in global buffer for ending zero --- Modified: src/modules/imc/imc_cmd.c --- Diff: https://github.com/kamailio/kamailio/commit/702630b484ac6f7c017829c24294ce7… Patch: https://github.com/kamailio/kamailio/commit/702630b484ac6f7c017829c24294ce7… --- diff --git a/src/modules/imc/imc_cmd.c b/src/modules/imc/imc_cmd.c index 757b17b342..bf68967d21 100644 --- a/src/modules/imc/imc_cmd.c +++ b/src/modules/imc/imc_cmd.c @@ -960,7 +960,8 @@ int imc_handle_members(struct sip_msg* msg, imc_cmd_t *cmd, } p = imc_body_buf; - left = sizeof(imc_body_buf); + imc_body_buf[IMC_BUF_SIZE - 1] = '\0'; + left = sizeof(imc_body_buf) - 1; memcpy(p, MEMBERS, sizeof(MEMBERS) - 1); p += sizeof(MEMBERS) - 1; @@ -975,22 +976,22 @@ int imc_handle_members(struct sip_msg* msg, imc_cmd_t *cmd, } if (imp->flags & IMC_MEMBER_OWNER) { - if (left < 1) goto overrun; + if (left < 2) goto overrun; *p++ = '*'; left--; } else if (imp->flags & IMC_MEMBER_ADMIN) { - if (left < 1) goto overrun; + if (left < 2) goto overrun; *p++ = '~'; left--; } name = format_uri(imp->uri); - if (left < name->len) goto overrun; + if (left < name->len + 1) goto overrun; strncpy(p, name->s, name->len); p += name->len; left -= name->len; - if (left < 1) goto overrun; + if (left < 2) goto overrun; *p++ = '\n'; left--;