From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 31895C4332F for ; Thu, 9 Nov 2023 13:28:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233980AbjKIN2p (ORCPT ); Thu, 9 Nov 2023 08:28:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47114 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230055AbjKIN2o (ORCPT ); Thu, 9 Nov 2023 08:28:44 -0500 Received: from mail-pf1-f198.google.com (mail-pf1-f198.google.com [209.85.210.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4E56D30CD for ; Thu, 9 Nov 2023 05:28:42 -0800 (PST) Received: by mail-pf1-f198.google.com with SMTP id d2e1a72fcca58-6bfd5856509so962239b3a.1 for ; Thu, 09 Nov 2023 05:28:42 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1699536522; x=1700141322; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=77d2zaEFmdh0l/LYyhH7KPBUajrsAXe7vasVXV9o2FU=; b=N1TH0qNrXZLh1JLavfXhPIrqW1ygrkveLODGS6p3lj3mbTT9guHIKc6zLOnUD+Fw3h aQeYoPKKX2W0zdBWValxRcgWaf/oh3ZpILPHadVy3SlBUw/Zc/bgIB2eoqaAuUo2k2N6 QIjYyt2cq2r82W63gogizq1H65viRnZP2XQmM8v1zf85Hp3b2hpLOdYRg5CIKiUcZopD iA8fQ39cds7vY4eSX7FXIg47249/gz5Z6b2hVwFcrXLuN1cSl5Tu25y4ZjT5NnccVwAs byduBnWHsg++EKwhnoFsARfNpDonfaI4eAEKvjTFEvS0VvLU6DPfY3fW8RfNceLwGfmW fLNQ== X-Gm-Message-State: AOJu0YyWCKpCwYqsGuEOj45zWDxzK0aW4sSLWvsw8xS+yngSzwtYXrtZ sMVgZWNnWO3G+wjaorggHhsTZ6dgff32l9B1L6nyouiQUj7OdyY= X-Google-Smtp-Source: AGHT+IEJyvQy7iDOm3eg1hNS5GtpuSUzc8JAt65nSTivbz9uAQuTKFXjskRruBQJjXCFCn9k9Uoi7C8+arzBt9jPenSQZEqB9Uga MIME-Version: 1.0 X-Received: by 2002:a05:6a00:be1:b0:6bc:ff89:a30e with SMTP id x33-20020a056a000be100b006bcff89a30emr453111pfu.3.1699536521896; Thu, 09 Nov 2023 05:28:41 -0800 (PST) Date: Thu, 09 Nov 2023 05:28:41 -0800 In-Reply-To: <0000000000007323f20609b7cfbb@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000abaaef0609b82e32@google.com> Subject: Re: [syzbot] [PATCH] Test for aea6bf908d73 From: syzbot To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: [PATCH] Test for aea6bf908d73 Author: eadavis@qq.com please test uaf in nfc_alloc_send_skb #syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git aea6bf908d73 diff --git a/net/nfc/llcp_core.c b/net/nfc/llcp_core.c index 1dac28136e6a..016364890357 100644 --- a/net/nfc/llcp_core.c +++ b/net/nfc/llcp_core.c @@ -1640,11 +1640,14 @@ int nfc_llcp_register_device(struct nfc_dev *ndev) void nfc_llcp_unregister_device(struct nfc_dev *dev) { struct nfc_llcp_local *local = nfc_llcp_remove_local(dev); + struct nfc_llcp_sock *nls; if (local == NULL) { pr_debug("No such device\n"); return; } + nls = container_of(local, struct nfc_llcp_sock, local); + nls->local = NULL; local_cleanup(local);