diff options
Diffstat (limited to 'usr/src')
| -rw-r--r-- | usr/src/uts/common/inet/tcp/tcp_input.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/usr/src/uts/common/inet/tcp/tcp_input.c b/usr/src/uts/common/inet/tcp/tcp_input.c index 831ebc7ba5..b53acf4b1d 100644 --- a/usr/src/uts/common/inet/tcp/tcp_input.c +++ b/usr/src/uts/common/inet/tcp/tcp_input.c @@ -21,6 +21,7 @@ /* * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2011, Joyent, Inc. All rights reserved. */ /* This file contains all TCP input processing functions. */ @@ -5424,6 +5425,16 @@ tcp_icmp_input(void *arg1, mblk_t *mp, void *arg2, ip_recv_attr_t *ira) ASSERT((MBLKL(mp) >= sizeof (ipha_t))); /* + * It's possible that we've gotten here, but the TCP state is closed and + * we no longer have a conn_t. In that case, we should just drop the + * icmp packet + */ + if (tcp->tcp_state == TCPS_CLOSED) { + freemsg(mp); + return; + } + + /* * Verify IP version. Anything other than IPv4 or IPv6 packet is sent * upstream. ICMPv6 is handled in tcp_icmp_error_ipv6. */ |