From patchwork Wed Nov 6 17:51:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Luczaj X-Patchwork-Id: 13865234 Received: from mailtransmit05.runbox.com (mailtransmit05.runbox.com [185.226.149.38]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E62C813A26F; Wed, 6 Nov 2024 18:25:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.226.149.38 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730917510; cv=none; b=PBmni0q9TJu+MvTTNTcVhTV9xckVXx6qK0keP06YMf5Z1+dEZ+vpZMjaB01URPIbo/sVmqfGH1EOSJl6ieyG5ipWH0UqqYKAZ4xXrDkpPJJDBuKlQU+lJrvN5YFrsb8mRgx9G87tlL9DuYZEQZHY7rsxyXTem0gE1aorxUyjc9o= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730917510; c=relaxed/simple; bh=KgA8I/V+Cve4q5UsJIo/GYuOhEw8GH4l1Hf73OoQ+hM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=JKxAQlC+/uEyGPO74coYFBaUblDt2jYdNXC5aO0SRXE4dHsysygXu2Dy8njpo4htD0+HyC6Mw1EtXMlXImqpku1f8dL1Zh72LFvyaWBQdwDM7eEX3415NTe68hPvbID6vMKAZgKfIQAE7QY24Z7a7P9X/Dun6BhOwXKYgTXpWJ8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=rbox.co; spf=pass smtp.mailfrom=rbox.co; dkim=pass (2048-bit key) header.d=rbox.co header.i=@rbox.co header.b=e8gIFCTn; arc=none smtp.client-ip=185.226.149.38 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=rbox.co Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rbox.co Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=rbox.co header.i=@rbox.co header.b="e8gIFCTn" Received: from mailtransmit03.runbox ([10.9.9.163] helo=aibo.runbox.com) by mailtransmit05.runbox.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.93) (envelope-from ) id 1t8kCW-00FDuq-UW; Wed, 06 Nov 2024 18:52:16 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=rbox.co; s=selector2; h=Cc:To:In-Reply-To:References:Message-Id: Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date:From; bh=Ct0XEhml4swkSlIdXGo4yYyMaDVehK1UNpjzCcF1yWA=; b=e8gIFCTn+IZ9UH49qs0POm0nfk Py41sqFa3oVqYX64FBxeeFjO1FhlhOF+iD4Q+9qxmTbsu7td6OBDujxO1yRZqCTRjdqx9pa5slAgL rktKT/vqwRkw1h6ANPh35CWt+1i1LJffRC0bg9KNYvAnyZGPabHZqBksok0qNO65CJPVKwrfy7ZaR xuCcyHdCB7CFfT20M5SA33PBcXTNuRDA+NKx+hgE8p6KKq9GWfh8iwJeBjwhJ9eSDtx7iuzS37yT3 U4PpHrqByD2uptcSp6NWP71N3tsUAdqEJAPKgCgAqNJWV0vVYHAHj1Mi4fjyUy2WncgZ9zN6owQr/ 9ck1ZsTg==; Received: from [10.9.9.73] (helo=submission02.runbox) by mailtransmit03.runbox with esmtp (Exim 4.86_2) (envelope-from ) id 1t8kCW-0001oV-A0; Wed, 06 Nov 2024 18:52:16 +0100 Received: by submission02.runbox with esmtpsa [Authenticated ID (604044)] (TLS1.2:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.93) id 1t8kCJ-002ver-MP; Wed, 06 Nov 2024 18:52:03 +0100 From: Michal Luczaj Date: Wed, 06 Nov 2024 18:51:20 +0100 Subject: [PATCH net 3/4] virtio/vsock: Improve MSG_ZEROCOPY error handling Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241106-vsock-mem-leaks-v1-3-8f4ffc3099e6@rbox.co> References: <20241106-vsock-mem-leaks-v1-0-8f4ffc3099e6@rbox.co> In-Reply-To: <20241106-vsock-mem-leaks-v1-0-8f4ffc3099e6@rbox.co> To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , =?utf-8?q?Eugenio_P=C3=A9rez?= , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Jia He , Arseniy Krasnov , Dmitry Torokhov , Andy King , George Zhang Cc: kvm@vger.kernel.org, virtualization@lists.linux.dev, netdev@vger.kernel.org, Michal Luczaj X-Mailer: b4 0.14.2 Add a missing kfree_skb() to prevent memory leaks. Fixes: 581512a6dc93 ("vsock/virtio: MSG_ZEROCOPY flag support") Signed-off-by: Michal Luczaj --- net/vmw_vsock/virtio_transport_common.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c index cd075f608d4f6f48f894543e5e9c966d3e5f22df..e2e6a30b759bdc6371bb0d63ee2e77c0ba148fd2 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_common.c @@ -400,6 +400,7 @@ static int virtio_transport_send_pkt_info(struct vsock_sock *vsk, if (virtio_transport_init_zcopy_skb(vsk, skb, info->msg, can_zcopy)) { + kfree_skb(skb); ret = -ENOMEM; break; }