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 3FB81C433E2 for ; Thu, 10 Sep 2020 09:43:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DDD2F20882 for ; Thu, 10 Sep 2020 09:43:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726600AbgIJJnv (ORCPT ); Thu, 10 Sep 2020 05:43:51 -0400 Received: from mail-io1-f78.google.com ([209.85.166.78]:49527 "EHLO mail-io1-f78.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729781AbgIJJnX (ORCPT ); Thu, 10 Sep 2020 05:43:23 -0400 Received: by mail-io1-f78.google.com with SMTP id k133so3896406iof.16 for ; Thu, 10 Sep 2020 02:43:22 -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=nU1Cfh/JcUj6ODLNVhA3Cjd25BwCeH0u3p5IbvUT7E8=; b=UB0W+0ZOY4rrswN4PtcK6I0v7RgmUOCYp0LUDqrhDSPEYwZ4a+Uv/zt0S1EyvuT3hm Orq8PGwnNnipC073dd+q6yPWynh0izH/X1y+Mb5jcfH6N+yo8CZDTw/tCEsddsnEnC2h X7odVMA3AChUq2KobruFSkt0xrlNtvwfKvFrZ0Vaf1hMQ5pmc0352BQ8kU4ehNxQnTlc wjibOwW/u0ie/fzQd98xzeOx+qhBGEpJWi8Jx0T6JhndFNII07AI4OzXjkkJB7r/wAdW /9FETfbOPbNGiKSAId6OGSYDXwL/WH5eU0/Ln5mTj3CuHJX0z3cg2ZwWTFAYapoZmDRs XhrQ== X-Gm-Message-State: AOAM533aXaar8LkKvEX5aC09WqlCLuq/jHalje9A6Tq97diIMOPiUu/Z w+2o/B4L1WXW9EELJ+iFxIRXnKdVksCT8mNUns89gsPA2nkh X-Google-Smtp-Source: ABdhPJy/5bVJwVvzHKZWSI6/ZA6wJi6L48BOhQU+od43M7GR+DbMyzE5X3qlC95205a9ffBLtV1AzU37sCGWDUklU5/5IwFC5HTy MIME-Version: 1.0 X-Received: by 2002:a92:ce48:: with SMTP id a8mr7114720ilr.295.1599731002412; Thu, 10 Sep 2020 02:43:22 -0700 (PDT) Date: Thu, 10 Sep 2020 02:43:22 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000229d5a05aef26677@google.com> Subject: general protection fault in batadv_iv_ogm_schedule (2) From: syzbot To: a@unstable.cc, b.a.t.m.a.n@lists.open-mesh.org, davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, mareklindner@neomailbox.ch, netdev@vger.kernel.org, sven@narfation.org, sw@simonwunderlich.de, 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 Hello, syzbot found the following issue on: HEAD commit: 34d4ddd3 Merge tag 'linux-kselftest-5.9-rc5' of git://git... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13db7cdd900000 kernel config: https://syzkaller.appspot.com/x/.config?x=8f5c353182ed6199 dashboard link: https://syzkaller.appspot.com/bug?extid=870c4745cc7a955e17e2 compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) 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+870c4745cc7a955e17e2@syzkaller.appspotmail.com general protection fault, probably for non-canonical address 0xdffffc000000000e: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077] CPU: 1 PID: 6396 Comm: kworker/u4:8 Not tainted 5.9.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet RIP: 0010:batadv_iv_ogm_schedule_buff net/batman-adv/bat_iv_ogm.c:843 [inline] RIP: 0010:batadv_iv_ogm_schedule+0x925/0xf40 net/batman-adv/bat_iv_ogm.c:869 Code: 00 48 c1 e8 03 48 89 44 24 28 48 c7 c5 48 e7 3a 8c 0f 1f 40 00 49 8d 5f 70 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 7d e0 a9 f9 48 8b 1b 48 b8 00 00 00 RSP: 0018:ffffc90019cd7b88 EFLAGS: 00010202 RAX: 000000000000000e RBX: 0000000000000070 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000000 RBP: ffffffff8c3ae748 R08: ffffffff880ae416 R09: ffffed10152b4c06 R10: ffffed10152b4c06 R11: 0000000000000000 R12: 0000000000000007 R13: ffff8880a95a6028 R14: ffff8880a7f17870 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000931c4000 CR4: 00000000001526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: batadv_iv_send_outstanding_bat_ogm_packet+0x68c/0x7c0 net/batman-adv/bat_iv_ogm.c:1723 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 Modules linked in: ---[ end trace 3bb6c6ec8627e29b ]--- RIP: 0010:batadv_iv_ogm_schedule_buff net/batman-adv/bat_iv_ogm.c:843 [inline] RIP: 0010:batadv_iv_ogm_schedule+0x925/0xf40 net/batman-adv/bat_iv_ogm.c:869 Code: 00 48 c1 e8 03 48 89 44 24 28 48 c7 c5 48 e7 3a 8c 0f 1f 40 00 49 8d 5f 70 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 7d e0 a9 f9 48 8b 1b 48 b8 00 00 00 RSP: 0018:ffffc90019cd7b88 EFLAGS: 00010202 RAX: 000000000000000e RBX: 0000000000000070 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000000 RBP: ffffffff8c3ae748 R08: ffffffff880ae416 R09: ffffed10152b4c06 R10: ffffed10152b4c06 R11: 0000000000000000 R12: 0000000000000007 R13: ffff8880a95a6028 R14: ffff8880a7f17870 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000931c4000 CR4: 00000000001526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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.