diff --git a/sys/netinet/ip_output.c b/sys/netinet/ip_output.c index 90c5251204ff..e644470dd448 100644 --- a/sys/netinet/ip_output.c +++ b/sys/netinet/ip_output.c @@ -1256,12 +1256,18 @@ ip_ctloutput(struct socket *so, struct sockopt *sopt) switch (sopt->sopt_name) { case IP_OPTIONS: case IP_RETOPTS: - if (inp->inp_options) + if (inp->inp_options) { + unsigned long len = ulmin(inp->inp_options->m_len, sopt->sopt_valsize); + struct mbuf *options = malloc(len, M_TEMP, M_WAITOK); + INP_RLOCK(inp); + bcopy(inp->inp_options, options, len); + INP_RUNLOCK(inp); error = sooptcopyout(sopt, - mtod(inp->inp_options, + mtod(options, char *), - inp->inp_options->m_len); - else + len); + free(options, M_TEMP); + } else sopt->sopt_valsize = 0; break;