From: Arseniy Krasnov <avkrasnov@salutedevices.com>
Date: Mon, 11 Sep 2023 20:20:26 +0000 (+0300)
Subject: vsock: send SIGPIPE on write to shutdowned socket
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8ecf0cedc08a3a8e663918d22f0350a928ac115c;p=linux.git

vsock: send SIGPIPE on write to shutdowned socket

POSIX requires to send SIGPIPE on write to SOCK_STREAM socket which was
shutdowned with SHUT_WR flag or its peer was shutdowned with SHUT_RD
flag. Also we must not send SIGPIPE if MSG_NOSIGNAL flag is set.

Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---

diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 020cf17ab7e47..013b65241b65e 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -1921,6 +1921,9 @@ out_err:
 			err = total_written;
 	}
 out:
+	if (sk->sk_type == SOCK_STREAM)
+		err = sk_stream_error(sk, msg->msg_flags, err);
+
 	release_sock(sk);
 	return err;
 }