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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 53021C2D0E2 for ; Thu, 24 Sep 2020 09:26:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 20B0622208 for ; Thu, 24 Sep 2020 09:26:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727534AbgIXJ0e (ORCPT ); Thu, 24 Sep 2020 05:26:34 -0400 Received: from mail-il1-f205.google.com ([209.85.166.205]:48880 "EHLO mail-il1-f205.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727522AbgIXJ0a (ORCPT ); Thu, 24 Sep 2020 05:26:30 -0400 Received: by mail-il1-f205.google.com with SMTP id g1so2068320iln.15 for ; Thu, 24 Sep 2020 02:26:29 -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:message-id:subject:from:to; bh=0j+21c+DQEGyv8+YfTh2XFRv26AfNd/g9NxPn8tyeGM=; b=Bka/3pSn6feNNuVl0KJC78IYsXb1DXJnsm7z0pHyB4bWbx7iLA5ygNMCUKYd67VKVp b3hdSVn7pCPCzkLnyt3c80fgwrAZ8d/g0jtGxr+ZgRSl4zsYmAWCEipxU9M8ms0+GllD f7yFogQiBIqmhcx+1WOTjffbB46xOnKGtqAXF29XEj8eFG5xl8ufAG8n/g90hzYMuUit qt5B/NzfsfLWq5ISCYFJaTkgQ8Ux+/zI64Zsc2CN3kqVSyhBbZd7IsJHtZBQulyzYVqv J8nCXzgFyul3M3oMx+wNRe+k6/ALuPLaXbLU2dij/bDQVbKVNaRA6rXn3Mr0zMo0sB30 EKvg== X-Gm-Message-State: AOAM530PwE6WGyyjCmff51zmw4Vaw0CZ2kSwbvFycLakaNjDTWRa2xCA NFe2tMrD/3H1jpeKWFRI5DnjeFaBC08Ccw5ZaiRyrNZTrKHr X-Google-Smtp-Source: ABdhPJxoICtWyO3FtjAwdEqjUFruLN+WepBvCdFwTSxtlAWaaMjwekbWiuFmqw0e5stUZKMnxXhnOsK2azHPEekQFNsdjhpYCASI MIME-Version: 1.0 X-Received: by 2002:a05:6638:1381:: with SMTP id w1mr2933256jad.34.1600939589413; Thu, 24 Sep 2020 02:26:29 -0700 (PDT) Date: Thu, 24 Sep 2020 02:26:29 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000088b1f405b00bcbb8@google.com> Subject: WARNING in __cfg80211_ibss_joined (2) 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" Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: eff48dde Merge tag 'trace-v5.9-rc5' of git://git.kernel.or.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1665b19b900000 kernel config: https://syzkaller.appspot.com/x/.config?x=5f4c828c9e3cef97 dashboard link: https://syzkaller.appspot.com/bug?extid=7f064ba1704c2466e36d compiler: gcc (GCC) 10.1.0-syz 20200507 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+7f064ba1704c2466e36d@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 29877 at net/wireless/ibss.c:36 __cfg80211_ibss_joined+0x487/0x520 net/wireless/ibss.c:36 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 29877 Comm: kworker/u4:3 Not tainted 5.9.0-rc6-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+0x198/0x1fd lib/dump_stack.c:118 panic+0x382/0x7fb kernel/panic.c:231 __warn.cold+0x20/0x4b 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_ibss_joined+0x487/0x520 net/wireless/ibss.c:36 Code: 0f 0b e9 0c fe ff ff e8 77 54 06 fa e9 41 fc ff ff e8 4d 54 06 fa e9 7d fc ff ff e8 63 54 06 fa e9 0d ff ff ff e8 e9 84 c5 f9 <0f> 0b e9 7e fc ff ff e8 dd 84 c5 f9 0f 0b e8 56 54 06 fa e9 e4 fb RSP: 0018:ffffc900177c7bc8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88809a2d0c10 RCX: ffffffff815b7ea2 RDX: ffff888097302400 RSI: ffffffff87b0b957 RDI: 0000000000000000 RBP: ffff88809a2d0000 R08: 0000000000000001 R09: ffffffff8d0b7a3f R10: fffffbfff1a16f47 R11: 0000000000000000 R12: 1ffff92002ef8f7b R13: ffff888000085a18 R14: 0000000000000000 R15: 0000000000000006 cfg80211_process_wdev_events+0x3de/0x5b0 net/wireless/util.c:910 cfg80211_process_rdev_events+0x6e/0x100 net/wireless/util.c:936 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.. --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.