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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 EB88EC2BA83 for ; Thu, 13 Feb 2020 17:04:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CBD99206DB for ; Thu, 13 Feb 2020 17:04:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728445AbgBMREO (ORCPT ); Thu, 13 Feb 2020 12:04:14 -0500 Received: from mail-io1-f71.google.com ([209.85.166.71]:33851 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727877AbgBMREN (ORCPT ); Thu, 13 Feb 2020 12:04:13 -0500 Received: by mail-io1-f71.google.com with SMTP id n26so4707538ioj.1 for ; Thu, 13 Feb 2020 09:04:13 -0800 (PST) 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=wu4DsXWHKTCz3A8YgQEqq7+svRyFUgePn4mAPcXVvZs=; b=k41+4gnuY1EIDxMnaNFw9h4vMp+884WtuYd04R6apcQX6ucoq1woBvr+IBZ7Tk07Et yy7/CyXb5o/CKFE4Bs/GvZTxXoT7zUFZeRvAvTEMUWcXFeJ5hnHI9pBGF2KyBnZFs6i5 E1Mntf6y+RVmM12mEKMxtTHRevq+ohBEYIjjcdYsj1C3e8TmpQ7cqmFNCji5uxez6Kif C0gGSqjC1ILX3F8h7Q3upvZHSoPJ/9gNpu6IdEEJMSP88Zwjty2VIitSGX7Xsjk+vKVM MLxrMsKct1Xqrj9qHFn8+ZhkC+k3EZn8jPREoemn1z8UkcDoPUvGCyxTK8mUdhKuqvfW Cm4w== X-Gm-Message-State: APjAAAUX8TzXhbovLs43JBV2gITzUnRVtRUajjOAHD86SbGYRu0SlB3D LF3H1HBNJjDWKalWPA88PiLnMZZG2GlWylq8I1Tnjy9F9zgK X-Google-Smtp-Source: APXvYqz6dn5wLs6c6DD619vuL6aE7pu08H8Je+AeL04q/9HdoUnqb124oBIMLG8C9XFGlXp62uBOqpYiH1e0nM27N1EAgHV1STvR MIME-Version: 1.0 X-Received: by 2002:a5d:9b94:: with SMTP id r20mr22396389iom.140.1581613453406; Thu, 13 Feb 2020 09:04:13 -0800 (PST) Date: Thu, 13 Feb 2020 09:04:13 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000000ffb36059e7814fb@google.com> Subject: WARNING in __cfg80211_ibss_joined 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: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: fdfa3a67 Merge tag 'scsi-misc' of git://git.kernel.org/pub.. git tree: bpf-next console output: https://syzkaller.appspot.com/x/log.txt?x=13ac434ee00000 kernel config: https://syzkaller.appspot.com/x/.config?x=71f1d0a1df5278ab dashboard link: https://syzkaller.appspot.com/bug?extid=a37200cd4a9a4d86c52f compiler: gcc (GCC) 9.0.0 20181231 (experimental) Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+a37200cd4a9a4d86c52f@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 607 at net/wireless/ibss.c:36 __cfg80211_ibss_joined+0x509/0x5b0 net/wireless/ibss.c:36 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 607 Comm: kworker/u4:10 Not tainted 5.5.0-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+0x197/0x210 lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x3e kernel/panic.c:582 report_bug+0x289/0x300 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:174 [inline] fixup_bug arch/x86/kernel/traps.c:169 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:267 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:__cfg80211_ibss_joined+0x509/0x5b0 net/wireless/ibss.c:36 Code: 0f 0b e9 f3 fd ff ff e8 e5 3f 3d fa e9 dc fb ff ff e8 9b 3f 3d fa e9 18 fc ff ff e8 d1 3f 3d fa e9 08 ff ff ff e8 47 9a fe f9 <0f> 0b e9 19 fc ff ff e8 3b 9a fe f9 0f 0b e8 d4 3f 3d fa e9 7e fb RSP: 0018:ffffc90001d77bb0 EFLAGS: 00010293 RAX: ffff8880a7f843c0 RBX: ffff888058c3cb90 RCX: 0000000000000006 RDX: 0000000000000000 RSI: ffffffff8776e2b9 RDI: ffff8880a7f84c54 RBP: ffffc90001d77c60 R08: 1ffffffff16a2f77 R09: fffffbfff16a2f78 R10: fffffbfff16a2f77 R11: ffffffff8b517bbf R12: ffff888058c3c000 R13: 1ffff920003aef7a R14: ffff8880a84ba118 R15: 0000000000000000 cfg80211_process_wdev_events+0x3fe/0x5b0 net/wireless/util.c:885 cfg80211_process_rdev_events+0x75/0x100 net/wireless/util.c:911 cfg80211_event_work+0x1e/0x30 net/wireless/core.c:320 process_one_work+0xa05/0x17a0 kernel/workqueue.c:2264 worker_thread+0x98/0xe40 kernel/workqueue.c:2410 kthread+0x361/0x430 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds.. --- This bug 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 bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.