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| author | Steven Luo <steven+qemu@steven676.net> | 2016-04-06 22:04:21 -0700 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2016-04-07 10:27:22 +0200 |
| commit | b5ab677189b93efa4eaa921f42b21dc008247184 (patch) | |
| tree | 03958dcffaa7001d060802bfb9ae6ae23e2301c8 /slirp/tcp_subr.c | |
| parent | 7acbff99c6c285b3070bf0e768d56f511e2bf346 (diff) | |
| download | qemu-b5ab677189b93efa4eaa921f42b21dc008247184.zip qemu-b5ab677189b93efa4eaa921f42b21dc008247184.tar.gz qemu-b5ab677189b93efa4eaa921f42b21dc008247184.tar.bz2 | |
slirp: don't crash when tcp_sockclosed() is called with a NULL tp
Signed-off-by: Steven Luo <steven+qemu@steven676.net>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Diffstat (limited to 'slirp/tcp_subr.c')
| -rw-r--r-- | slirp/tcp_subr.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/slirp/tcp_subr.c b/slirp/tcp_subr.c index dbfd2c6..32ff452 100644 --- a/slirp/tcp_subr.c +++ b/slirp/tcp_subr.c @@ -356,6 +356,10 @@ tcp_sockclosed(struct tcpcb *tp) DEBUG_CALL("tcp_sockclosed"); DEBUG_ARG("tp = %p", tp); + if (!tp) { + return; + } + switch (tp->t_state) { case TCPS_CLOSED: @@ -374,8 +378,7 @@ tcp_sockclosed(struct tcpcb *tp) tp->t_state = TCPS_LAST_ACK; break; } - if (tp) - tcp_output(tp); + tcp_output(tp); } /* |