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 4EC7EC4741F for ; Sat, 26 Sep 2020 12:09:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 05CD7238E5 for ; Sat, 26 Sep 2020 12:09:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727072AbgIZMJY (ORCPT ); Sat, 26 Sep 2020 08:09:24 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:55650 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726210AbgIZMJY (ORCPT ); Sat, 26 Sep 2020 08:09:24 -0400 Received: by mail-io1-f72.google.com with SMTP id t187so3958924iof.22 for ; Sat, 26 Sep 2020 05:09:23 -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=G3CO8apcR3uPwIt5d5uUeceIwwic8mBs/bCybEWaLjQ=; b=M9ejIj75KSMnR2GUKHpQ1lv564NldC7du+xNfbaPlqV5dv5EcRsIAZIVz/Nm9qus0S fIATqT6PA1IoZgrURQkZVu2hyHFLeGlk8sLEoHqjzJ7vlolEMUl9X0XyYmyjVpAS+Fu/ pW4iUcSrKrXH691wemjedV6k/swsQIpL6uolDG7/IOSs53bFr6kXwDrmxpjZjXh+t/R2 2+Y+4BGv0L4A+UaAw6EkQ4FD/S3XcAp8anc5S8/ALptKDrbBA7Xb47VBcDlUS4VF6nbw C/yOL8uX4CyD5TSpi9YEx0gQAW85dbV7gU0nJEMSUabrh7DYo8k7lq+e+qLBleYU0n1U /U+A== X-Gm-Message-State: AOAM533TMkdwVizpaX57N2YVNPuiJyJ7lQ77T/54+f8E2tJqrh34ZcwQ iBP6sC43SKGS8VL2wJGyeTtIz81ol5tA91vmMyrsgJ2B0TTd X-Google-Smtp-Source: ABdhPJyaN0zdQONqlEleLweGjbzzZCTrnYKNOLsHlWl9PmaS7iWCpDyfSApiqGSD9t1I8LMoNU1tXmAzYISojgu1u8g4NQb20RFl MIME-Version: 1.0 X-Received: by 2002:a05:6e02:de8:: with SMTP id m8mr3745524ilj.299.1601122163373; Sat, 26 Sep 2020 05:09:23 -0700 (PDT) Date: Sat, 26 Sep 2020 05:09:23 -0700 In-Reply-To: <00000000000088b1f405b00bcbb8@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ca3fdb05b0364d1a@google.com> Subject: Re: 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-kernel@vger.kernel.org syzbot has found a reproducer for the following issue on: HEAD commit: 7c7ec322 Merge tag 'for-linus' of git://git.kernel.org/pub.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10f42f9b900000 kernel config: https://syzkaller.appspot.com/x/.config?x=6184b75aa6d48d66 dashboard link: https://syzkaller.appspot.com/bug?extid=7f064ba1704c2466e36d compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1757b773900000 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: 8356 at net/wireless/ibss.c:36 __cfg80211_ibss_joined+0x3fe/0x480 net/wireless/ibss.c:36 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 8356 Comm: kworker/u4:7 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+0x1d6/0x29e lib/dump_stack.c:118 panic+0x2c0/0x800 kernel/panic.c:231 __warn+0x227/0x250 kernel/panic.c:600 report_bug+0x1b1/0x2e0 lib/bug.c:198 handle_bug+0x42/0x80 arch/x86/kernel/traps.c:234 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:__cfg80211_ibss_joined+0x3fe/0x480 net/wireless/ibss.c:36 Code: 00 00 48 3b 44 24 30 0f 85 8d 00 00 00 48 83 c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 bb 54 9a f9 0f 0b eb d4 e8 b2 54 9a f9 <0f> 0b eb cb e8 a9 54 9a f9 0f 0b e9 82 fd ff ff e8 9d 54 9a f9 0f RSP: 0018:ffffc9000a197bd8 EFLAGS: 00010293 RAX: ffffffff87daa87e RBX: 1ffff11012e3a182 RCX: ffff8880953ae080 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000006 R08: dffffc0000000000 R09: fffffbfff16c80a4 R10: fffffbfff16c80a4 R11: 0000000000000000 R12: ffff8880971d0c10 R13: ffff88808ddde418 R14: ffff888077e23350 R15: ffff8880971d0000 cfg80211_process_wdev_events+0x3b5/0x4d0 net/wireless/util.c:910 cfg80211_process_rdev_events+0x79/0xe0 net/wireless/util.c:936 cfg80211_event_work+0x1d/0x30 net/wireless/core.c:320 process_one_work+0x789/0xfc0 kernel/workqueue.c:2269 worker_thread+0xaa4/0x1460 kernel/workqueue.c:2415 kthread+0x37e/0x3a0 drivers/block/aoe/aoecmd.c:1234 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Kernel Offset: disabled Rebooting in 86400 seconds..