From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f179.google.com (mail-pl1-f179.google.com [209.85.214.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BC19E78C93 for ; Thu, 18 Jul 2024 12:34:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.179 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721306049; cv=none; b=PgQJ0aYuSeR1UdltGh4XEYAI4vAxap9Yz4ZpZ3AfWQRbcX+IUOckJRmVVmhzJ3IUdNse1oD0rKslQx+46VhcUMFJpptchxbXLXKi3XIT/OARofpWVtHl6q+zVd7muTpMXOE9bjWc9p1ofWSjSSDzCWa+8CECz4N2h2E9CxEURmA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721306049; c=relaxed/simple; bh=9/PRQnT6m7ZKE4E0lTCWt3wr0JNjTQcZeKQYDcLzk1I=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=HDD77CXed2sDHM64muTCESrgL90rvwCdQ0sNYhfpyNxm9+bbkvoiUiS8ybH11ASpRUnjKFVysImMnJm8tBM+6pPDWxTTQ5tJMyAIln3vbsoj2U5Xt9olA04CkP2CAVVRrM5DmqrDUL0NduVLqrHhGvlZPSQDRCpQA6YpIDN336I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=d0Ox3t3J; arc=none smtp.client-ip=209.85.214.179 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="d0Ox3t3J" Received: by mail-pl1-f179.google.com with SMTP id d9443c01a7336-1fc6a017abdso2577015ad.0 for ; Thu, 18 Jul 2024 05:34:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1721306047; x=1721910847; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=A7RzpzbytVKsMSo/gRdZ+hmuL1xtdjhM/yZEN5JcVuc=; b=d0Ox3t3JqoU17ZFg4MYF2zEn4baV7dXnBMu9H9TsrP+PSQupzYPtvalTTblw3UiBWx dZh42MyppJPQJdlcR0H7vE9+Rm0ORZju5AqwfaN32oqIYqGS26TdGN5EnayP17q8kQNq FnXr3Nb6rdJQGJj3pGzOcz/lwxeQkQL9lU2K0L4uCVWPzPpf9qrVI++mnluSU4GkxByL Ggt5HNi2gZb/tKLX5M1zR6TkegEBPZN6WGxP0c4h95q7YvF/BQNGE3vLJfyPqViP5yg5 TNyLN4OfNjRljcog/hWQq0YvBsPbP2lJVFczizu2cAQwJdZwfmLjtIk4EWrTOl1ViFxX 4A0g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721306047; x=1721910847; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=A7RzpzbytVKsMSo/gRdZ+hmuL1xtdjhM/yZEN5JcVuc=; b=tDZTq6Oesw7iWpWdovfMShXLApVyQgfIz/uiHq4ZF6cshsh5fGPa5cZftGShPe9Ut6 CV8ey+iWj2t/XyMsNHMV8WWZw+1wTpRD/CCr+b4wwRuF/Y7ESSkfAGT750+/LxW3Xr4j AB+Gqvb4pb+9OPOPfsgskpVPtmNueQWANV8yMKm/de0cxpOkCwQTM8JqQpfg9rK46unB 2ApGSbm6tGndPEk2Fw2woaZXufoj7Tk7lMepV5SXoOEzoKtskP5HK13w6RTwLocGEt+U mt6F0Z/nuWCsoaIufg9ZAtgC8gBi/9zOiE50wBRW58JIYUV+S8ViQSjhV8X68X4by+XU nnIA== X-Gm-Message-State: AOJu0YyZpJCO+Y1VFSQAK91bNRVKi6X6qC41Pw5bywaGp7oqYfnvvibp pKYiZOwkodCW0lAEEo5NpoAW750L4TEY54eBmNkIsWUbZngw3oKBulk/kL6j X-Google-Smtp-Source: AGHT+IF8iR7aWsEDsucKBTzizmCkqxlKKioHWhy2W0os2pqVjNGU3eBKQKB9Ckw6K/tgAIh1LRxIMg== X-Received: by 2002:a17:903:187:b0:1fb:83c5:cf93 with SMTP id d9443c01a7336-1fc4e1471bamr36631195ad.27.1721306046992; Thu, 18 Jul 2024 05:34:06 -0700 (PDT) Received: from kernelexploit-virtual-machine.localdomain ([121.185.186.233]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1fc0bb6fdc9sm92123275ad.52.2024.07.18.05.34.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 18 Jul 2024 05:34:06 -0700 (PDT) From: Jeongjun Park To: syzbot+a81f2759d022496b40ab@syzkaller.appspotmail.com Cc: linux-kernel@vger.kernel.org Subject: Re: [syzbot] [net?] KMSAN: uninit-value in hsr_get_node (3) Date: Thu, 18 Jul 2024 21:34:04 +0900 Message-Id: <20240718123404.59833-1-aha310510@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <0000000000004a86bf0616571fc7@google.com> References: <0000000000004a86bf0616571fc7@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit #syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master --- drivers/net/virtio_net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index af474cc191d0..2088b566d10b 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -2895,7 +2895,7 @@ static int virtnet_open(struct net_device *dev) for (i = 0; i < vi->max_queue_pairs; i++) { if (i < vi->curr_queue_pairs) /* Make sure we have some buffers: if oom use wq. */ - if (!try_fill_recv(vi, &vi->rq[i], GFP_KERNEL)) + if (!try_fill_recv(vi, &vi->rq[i], GFP_KERNEL | __GFP_ZERO)) schedule_delayed_work(&vi->refill, 0); err = virtnet_enable_queue_pair(vi, i); --