Eric Pouech : nsiproxy.sys: Explicitly check for recvmsg() failure.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 03ad57d2d000068cbf016441547faf8dc2148ceb
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=03ad57d2d000068cbf0164415...

Author: Eric Pouech <eric.pouech(a)gmail.com>
Date:   Fri Mar 11 08:17:52 2022 +0000

nsiproxy.sys: Explicitly check for recvmsg() failure.

Signed-off-by: Eric Pouech <eric.pouech(a)gmail.com>
Signed-off-by: Huw Davies <huw(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/nsiproxy.sys/icmp_echo.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/nsiproxy.sys/icmp_echo.c b/dlls/nsiproxy.sys/icmp_echo.c
index f36ff156bef..5f2b776745a 100644
--- a/dlls/nsiproxy.sys/icmp_echo.c
+++ b/dlls/nsiproxy.sys/icmp_echo.c
@@ -709,6 +709,7 @@ static NTSTATUS recv_msg( struct icmp_data *data, struct icmp_listen_params *par
     TRACE( "recvmsg() rets %d errno %d addr_len %d iovlen %d msg_flags %x\n",
            recvd, errno, msg.msg_namelen, (int)iov[0].iov_len, msg.msg_flags );
 
+    if (recvd < 0) goto skip;
     if (!data->ops->parse_ip_hdr( &msg, recvd, &ip_hdr_len, &ctx )) goto skip;
     if (recvd < ip_hdr_len + sizeof(*icmp_hdr)) goto skip;