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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E8424C5479D for ; Mon, 9 Jan 2023 06:58:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233240AbjAIG6u (ORCPT ); Mon, 9 Jan 2023 01:58:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56774 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231148AbjAIG6q (ORCPT ); Mon, 9 Jan 2023 01:58:46 -0500 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4C99562FA for ; Sun, 8 Jan 2023 22:58:45 -0800 (PST) Received: by mail-il1-f197.google.com with SMTP id l13-20020a056e021c0d00b003034e24b866so5571552ilh.22 for ; Sun, 08 Jan 2023 22:58:45 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=T0sDTq2JREp0I2nGgOojTQd0cqOlGH4qHnE6WSC1FvU=; b=LAcdmkv7NaCJ+FxSxJM7TvtboN61H8L78RC+zO5rrgQ2BvuJ74qsiZjNDjffUK/X2N ImhtHQJ3wXBrTC9cefU2X1Eu8w+b8uCh2uW7KoDkBMRkJiga/HMl9kAHhG+H5DdTe+f1 M6eBkU7C1DXtsWMmKD47HGeJbk/lDHlB4NfyOuvCueM792nd7IMuR8RQNb6MdUYMRhcm /BaSiYK0s+8mSICaxbo2fpt1+qaVZImV4bMvDnJRgFbdcr88oxkIhVv4mc7XP9d8n33t uVs0/9jQdXfCLBnP9HmXv8kGrxYqFnVgJl1GDv/Az8hMVxrzutmnXb5879kZJ2GG3Qs1 FDsg== X-Gm-Message-State: AFqh2kpjtqqKZU7ZgM9e6+Lv0Vhz6Fnopi6yqr6Hpt1GCgQxztgXsNMi P2ec6Ax/39ao96cvR7p0V8QdIWLEKkhnOPWyCn+6WLuUIKcG X-Google-Smtp-Source: AMrXdXsu2mTlScMyTHkRT2m0IZAdv/KbR+YW0/zDCPVeyuhxOYIQlJGgQA0rU+ALskXAcITvO0f/0ZJusLuo8+h9V0Ji2VAtb3Ru MIME-Version: 1.0 X-Received: by 2002:a92:d10f:0:b0:300:7a6d:c37c with SMTP id a15-20020a92d10f000000b003007a6dc37cmr5595518ilb.32.1673247524588; Sun, 08 Jan 2023 22:58:44 -0800 (PST) Date: Sun, 08 Jan 2023 22:58:44 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000053159f05f1cf4cad@google.com> Subject: [syzbot] WARNING in mbind_range From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 543b9b2fe10b Add linux-next specific files for 20230109 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=1609b0ce480000 kernel config: https://syzkaller.appspot.com/x/.config?x=ceb6f70a080e19c3 dashboard link: https://syzkaller.appspot.com/bug?extid=502859d610c661e56545 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/22f2428ec2eb/disk-543b9b2f.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/6003c7af47cc/vmlinux-543b9b2f.xz kernel image: https://storage.googleapis.com/syzbot-assets/ac9a6ad60347/bzImage-543b9b2f.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+502859d610c661e56545@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 30709 at mm/mempolicy.c:797 mbind_range+0x5d2/0x760 mm/mempolicy.c:797 Modules linked in: CPU: 0 PID: 30709 Comm: syz-executor.3 Not tainted 6.2.0-rc3-next-20230109-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:mbind_range+0x5d2/0x760 mm/mempolicy.c:797 Code: 96 e8 f2 c7 b4 ff 4d 85 e4 74 8c e8 e8 c7 b4 ff 4c 89 e7 e8 10 7d ff ff e9 7a ff ff ff 45 31 f6 e9 72 ff ff ff e8 ce c7 b4 ff <0f> 0b 45 31 f6 e9 63 ff ff ff e8 bf ae 02 00 e9 6d fc ff ff 4c 89 RSP: 0018:ffffc90003ac7ca8 EFLAGS: 00010216 RAX: 000000000000022c RBX: ffff888075406c00 RCX: ffffc900146ed000 RDX: 0000000000040000 RSI: ffffffff81cce582 RDI: ffffc90003ac7d20 RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000020c12000 R13: 0000000000000000 R14: 0000000020012000 R15: 0000000000000000 FS: 00007f0dd0398700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020319000 CR3: 00000000485d1000 CR4: 00000000003506e0 Call Trace: do_mbind mm/mempolicy.c:1320 [inline] kernel_mbind+0x473/0x7c0 mm/mempolicy.c:1474 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f0dcf68c0c9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0dd0398168 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed RAX: ffffffffffffffda RBX: 00007f0dcf7abf80 RCX: 00007f0dcf68c0c9 RDX: 0000000000000000 RSI: 0000000000c00000 RDI: 0000000020012000 RBP: 00007f0dcf6e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdc142a6cf R14: 00007f0dd0398300 R15: 0000000000022000 --- 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.