d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Allow sending on demand SCTP HEARTBEATS only in the ESTABLISHED state.

Browse Source 
This issue was found by running syzkaller.

MFC after:		3 days
This commit is contained in:
Michael Tuexen 2019-05-19 17:53:36 +00:00
parent fc26bf717c
commit 3a4f12e3b1
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
sys/netinet/sctp_usrreq.c
View File

@ -5332,11 +5332,12 @@ sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
net->dest_state &= ~SCTP_ADDR_NOHB;
}
if (paddrp->spp_flags & SPP_HB_DEMAND) {
/* on demand HB */
if (SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) {
sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
}
}
if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,