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 X-Spam-Level: X-Spam-Status: No, score=-3.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 63D43C433DF for ; Wed, 19 Aug 2020 15:02:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 449332076E for ; Wed, 19 Aug 2020 15:02:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727827AbgHSPCf (ORCPT ); Wed, 19 Aug 2020 11:02:35 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:44832 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726689AbgHSPCW (ORCPT ); Wed, 19 Aug 2020 11:02:22 -0400 Received: by mail-io1-f72.google.com with SMTP id m12so14378545iov.11 for ; Wed, 19 Aug 2020 08:02:21 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=67Gh75A1TSpN6NtiARVGU9hWjZqJ15XNNQGywFVosG0=; b=HdbD5IbshU4KmntjWmjX+4C2v9XPv3jwXKSxuB2SE+TETVU7y5UJI51uUN+l9V5AIy Bg0KUjTePhNKkCCPpbwh1zEDyPkEIqIzPRT3BsQiz3hPe/orwf/LaidQaUEtQ1mcCvvB Ni2RCehqzUTkWWvtEGVvmU5vc5ArnfRkZOQW3hdkCfDQvqnnRv0ngmaGX7EAW1RHM+wx tQrxfnyFW8JVe+M1x7pWmt5VVhCbKpO0cMg50coPis+imAkyBtT2D0bXtMgOeg8w96SS Z9Cl9qaV8Z5FGdo0keMj5VUfOvNSffQvzPVHwpOjs5fglhh2jyt0edg8+6Bvv2FiU7HQ 4bKg== X-Gm-Message-State: AOAM531sGffb4EyF1+VUAL0dJqsaR93hEKwMVx7AkIXEUX1JmLQj4UH/ mYOSGq4eQMuFK0zXPDm8RuInTGYdq1lmF2CftDx9aWK7TyXG X-Google-Smtp-Source: ABdhPJyvN4+7Tvk6NZpG6almeZlIMGgzU5iWuaJVJIQJxIvHiNKvtJVyzgAjNmdVi5jHIVN0cpxmVvEtulJN3SDb4OQLAnh8xQ5A MIME-Version: 1.0 X-Received: by 2002:a92:d782:: with SMTP id d2mr24126782iln.167.1597849341396; Wed, 19 Aug 2020 08:02:21 -0700 (PDT) Date: Wed, 19 Aug 2020 08:02:21 -0700 In-Reply-To: <000000000000a7e38a05a997edb2@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000660e9a05ad3c4ace@google.com> Subject: Re: WARNING in __cfg80211_connect_result From: syzbot To: davem@davemloft.net, johannes@sipsolutions.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has found a reproducer for the following issue on: HEAD commit: e3ec1e8c net: eliminate meaningless memcpy to data in pskb.. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=1664ac89900000 kernel config: https://syzkaller.appspot.com/x/.config?x=3d400a47d1416652 dashboard link: https://syzkaller.appspot.com/bug?extid=cc4c0f394e2611edba66 compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15d9de91900000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+cc4c0f394e2611edba66@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 234 at net/wireless/sme.c:757 __cfg80211_connect_result+0xf71/0x13a0 net/wireless/sme.c:757 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 234 Comm: kworker/u4:5 Not tainted 5.9.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: cfg80211 cfg80211_event_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x18f/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:231 __warn.cold+0x20/0x4a kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:__cfg80211_connect_result+0xf71/0x13a0 net/wireless/sme.c:757 Code: 89 be ac 02 00 00 48 c7 c7 60 0f 18 89 c6 05 ef ba 2b 03 01 e8 f5 4a d9 f9 e9 4f f6 ff ff e8 d6 cc f2 f9 0f 0b e8 cf cc f2 f9 <0f> 0b e9 0c f2 ff ff e8 c3 cc f2 f9 e8 2e bb 71 00 31 ff 89 c3 89 RSP: 0018:ffffc900019c7bb8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88808ae13000 RCX: ffffffff87816922 RDX: ffff8880a8b0a540 RSI: ffffffff878174b1 RDI: 0000000000000005 RBP: ffff88807be34818 R08: 0000000000000001 R09: ffffffff8c5f1a3f R10: 0000000000000000 R11: 1ffffffff1835405 R12: 0000000000000000 R13: ffff88807be34828 R14: ffff88808ae13200 R15: ffff88807be34820 cfg80211_process_wdev_events+0x2c6/0x5b0 net/wireless/util.c:893 cfg80211_process_rdev_events+0x6e/0x100 net/wireless/util.c:934 cfg80211_event_work+0x1a/0x20 net/wireless/core.c:320 process_one_work+0x94c/0x1670 kernel/workqueue.c:2269 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415 kthread+0x3b5/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Kernel Offset: disabled Rebooting in 86400 seconds..