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=-9.0 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=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 AED90C433E6 for ; Mon, 31 Aug 2020 17:48:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9584F20658 for ; Mon, 31 Aug 2020 17:48:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728191AbgHaRsR (ORCPT ); Mon, 31 Aug 2020 13:48:17 -0400 Received: from mail-il1-f200.google.com ([209.85.166.200]:42143 "EHLO mail-il1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726226AbgHaRsQ (ORCPT ); Mon, 31 Aug 2020 13:48:16 -0400 Received: by mail-il1-f200.google.com with SMTP id f67so5705961ilf.9 for ; Mon, 31 Aug 2020 10:48:15 -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=S4zxagtdMiMS38gDJ8vKb9tchQO6uFhBxEUM3W1CRWw=; b=dnkFmDelhIWjbCRUkMvT+0Yi+s1t6Vor27YTSmPW+bl1Nd8PmgUhzLhdvucKR+Lih5 rZlByT1qAqQGNJKORfvIYkpmAjk1ljp8HbafjWa8uNBh1IUbCin/KNJje+96+27vCikb ZrEmLmGE728I2DG72uiOXwNdMZkKvAGwS6Ers2UQH0v649Z9qSEqzi/CUFj/sYezeIq0 rqUv7MrZfHJ6vczvsw+MqvIFGl/diWmZE+SuzHAqQoZkQQmeL5KtAypearmhwdxhRiRW /J+xnq4FObecHzB+9LtnKkJNZzRVr0ZCtBtRrRJhWJrO8WhZSsBhuuCvC5qyk49prSZ4 BIPw== X-Gm-Message-State: AOAM530Ap369X75c29WcYLPa0wV85DqrPMWfFVofYqfxmujPvjXHsG5U RyhMPs1zxdKwXG3j5fidvS3F2PurmHITRckRr7PWLla5pCiD X-Google-Smtp-Source: ABdhPJwsEP2eLKtWK98JkeZmegMcYiQ+sapec74Z7A9VuQgqb2fFPcX8An2u5gM78u+kioBuh7fUqbSLoT8xIUDh91A/1g0DVNl8 MIME-Version: 1.0 X-Received: by 2002:a05:6e02:cd4:: with SMTP id c20mr2443555ilj.0.1598896095201; Mon, 31 Aug 2020 10:48:15 -0700 (PDT) Date: Mon, 31 Aug 2020 10:48:15 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000c98d7205ae300144@google.com> Subject: WARNING in idr_get_next From: syzbot To: bjorn.andersson@linaro.org, davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, manivannan.sadhasivam@linaro.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 issue on: HEAD commit: 4d41ead6 Merge tag 'block-5.9-2020-08-28' of git://git.ker.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=140e7569900000 kernel config: https://syzkaller.appspot.com/x/.config?x=891ca5711a9f1650 dashboard link: https://syzkaller.appspot.com/bug?extid=f7204dcf3df4bb4ce42c compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17a1352e900000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11fdaf41900000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+f7204dcf3df4bb4ce42c@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6839 at lib/idr.c:269 idr_get_next+0x33a/0x3a0 lib/idr.c:269 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 6839 Comm: syz-executor121 Not tainted 5.9.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1f0/0x31e lib/dump_stack.c:118 panic+0x264/0x7a0 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:idr_get_next+0x33a/0x3a0 lib/idr.c:269 Code: 6b 89 2b 65 48 8b 04 25 28 00 00 00 48 3b 44 24 58 75 72 4c 89 f8 48 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 86 5b b7 fd <0f> 0b 45 31 ff eb d2 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c f7 fc RSP: 0018:ffffc9000291fd40 EFLAGS: 00010293 RAX: ffffffff83bd9c9a RBX: ffffc9000291fde4 RCX: ffff8880a899a100 RDX: 0000000000000000 RSI: 00000000fffffffc RDI: 000000007fffffff RBP: 00000000fffffffc R08: ffffffff83bd9c56 R09: fffffbfff13114f8 R10: fffffbfff13114f8 R11: 0000000000000000 R12: dffffc0000000000 R13: 1ffff92000523faf R14: ffff8880aa0175c8 R15: ffff8880a9622040 qrtr_reset_ports net/qrtr/qrtr.c:734 [inline] __qrtr_bind+0x58a/0x7d0 net/qrtr/qrtr.c:777 qrtr_bind+0x115/0x1a0 net/qrtr/qrtr.c:813 __sys_bind+0x283/0x360 net/socket.c:1656 __do_sys_bind net/socket.c:1667 [inline] __se_sys_bind net/socket.c:1665 [inline] __x64_sys_bind+0x76/0x80 net/socket.c:1665 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x441239 Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffe6f268cc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441239 RDX: 000000000000000c RSI: 0000000020000140 RDI: 0000000000000003 RBP: 000000000000aca5 R08: 00000000004002c8 R09: 00000000004002c8 R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000401fe0 R13: 0000000000402070 R14: 0000000000000000 R15: 0000000000000000 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. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches