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=-3.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 75241C433F5 for ; Mon, 20 Sep 2021 07:36:19 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 07A9A60FF2 for ; Mon, 20 Sep 2021 07:36:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 07A9A60FF2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 7A212900003; Mon, 20 Sep 2021 03:36:18 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 7524F900002; Mon, 20 Sep 2021 03:36:18 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 64297900003; Mon, 20 Sep 2021 03:36:18 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0225.hostedemail.com [216.40.44.225]) by kanga.kvack.org (Postfix) with ESMTP id 54BC1900002 for ; Mon, 20 Sep 2021 03:36:18 -0400 (EDT) Received: from smtpin33.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 02E2C8249980 for ; Mon, 20 Sep 2021 07:36:17 +0000 (UTC) X-FDA: 78607143636.33.13A70C9 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) by imf01.hostedemail.com (Postfix) with ESMTP id A83A3516F393 for ; Mon, 20 Sep 2021 07:36:17 +0000 (UTC) Received: by mail-io1-f70.google.com with SMTP id x26-20020a6bd01a000000b005c23c703629so38927517ioa.10 for ; Mon, 20 Sep 2021 00:36:17 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=JaIDXQKCEKWvjojQXkSeD2DVMnB3ry8L5mp2UX+QrXI=; b=zEuxrbS4ToNnCjzCXoEOVAwnbQJrRxHL1B0jAwZ1ry7cgjAKn+nqEr62sC9SVnXGuu qTRdLhHkK/fJmcX2ja150UZsgoMoR8OkALo0tpT/FmF7uMvP8sSrrI64Nk0tiPbZ8w4L ehYWO7F2oQNu1N086daPyEHP0/yG8mhyKOHgh4CyOK/nG0GX/6b6SSo5IQ35QLeGEgQw zSZpMbRuIM7i5BjUZ8pIK1aS/g79t9qaAsdKVCwO+VIpC700RMv4tUyX/iu8nw3p/PPi vqhaM9ZrunM5aMhzoHE2poL3Tv0gxjmEHuZwx9g0j17Yp4k0zxmk2Xg2tovdtCCTWB4Q sHpg== X-Gm-Message-State: AOAM530KjBzCI1kwdKPqI0Q+SFls698JrYL4QR+QHHDwAy6ZM0e7DOqS r+xW0i0+eGYGuHJaHyO+p31JT9k2FASZxwVHKF0bUBfK5luU X-Google-Smtp-Source: ABdhPJxvmmQFPASqaGE1IcSLk0anDTaE5bMiSNLh2Z3J3XWszHM2YWH0yvvgaQtSPy7OIrWEIBqlljAAVp/k7uTP7Chl5Sl8upca MIME-Version: 1.0 X-Received: by 2002:a02:a46:: with SMTP id 67mr18038303jaw.142.1632123377157; Mon, 20 Sep 2021 00:36:17 -0700 (PDT) Date: Mon, 20 Sep 2021 00:36:17 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000020104105cc685624@google.com> Subject: [syzbot] kernel BUG in __free_one_page 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" X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: A83A3516F393 X-Stat-Signature: kuyxmpb53t1431cuaxz559oh434ubutr Authentication-Results: imf01.hostedemail.com; dkim=none; spf=pass (imf01.hostedemail.com: domain of 38TlIYQkbAJYIOPA0BB4H0FF83.6EE6B4KI4H2EDJ4DJ.2EC@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com designates 209.85.166.70 as permitted sender) smtp.mailfrom=38TlIYQkbAJYIOPA0BB4H0FF83.6EE6B4KI4H2EDJ4DJ.2EC@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=appspotmail.com (policy=none) X-HE-Tag: 1632123377-506120 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hello, syzbot found the following issue on: HEAD commit: d4d016caa4b8 alpha: move __udiv_qrnnd library function to .. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1564ae79300000 kernel config: https://syzkaller.appspot.com/x/.config?x=6d93fe4341f98704 dashboard link: https://syzkaller.appspot.com/bug?extid=afe1d3c5ccb5940c372a 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. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+afe1d3c5ccb5940c372a@syzkaller.appspotmail.com io_mem_free.part.0+0xf7/0x140 fs/io_uring.c:8708 io_mem_free fs/io_uring.c:8703 [inline] io_ring_ctx_free fs/io_uring.c:9250 [inline] io_ring_exit_work+0xf20/0x1980 fs/io_uring.c:9408 process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 ------------[ cut here ]------------ kernel BUG at mm/page_alloc.c:1073! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.15.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: mm_percpu_wq vmstat_update RIP: 0010:__free_one_page+0xa10/0xe30 mm/page_alloc.c:1073 Code: 43 34 85 c0 0f 84 79 f9 ff ff 48 c7 c6 80 1b 97 89 48 89 ef e8 61 dd f6 ff 0f 0b 48 c7 c6 60 1a 97 89 4c 89 ef e8 50 dd f6 ff <0f> 0b 0f 0b 48 c7 c6 c0 1a 97 89 4c 89 ef e8 3d dd f6 ff 0f 0b 48 RSP: 0018:ffffc90000ca7968 EFLAGS: 00010093 RAX: 0000000000000000 RBX: ffffc90000ca7a60 RCX: 0000000000000000 RDX: ffff888010e40000 RSI: ffffffff81b2f6b0 RDI: 0000000000000003 RBP: 0000000000152200 R08: 0000000000000018 R09: 00000000ffffffff R10: ffffffff88f44b19 R11: 00000000ffffffff R12: 0000000000000009 R13: ffffea0005488000 R14: 0000000000000000 R15: ffff88823fff8e00 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 0000000036db1000 CR4: 00000000001526f0 Call Trace: free_pcppages_bulk+0x533/0x8a0 mm/page_alloc.c:1537 drain_zone_pages+0x173/0x440 mm/page_alloc.c:3079 refresh_cpu_vm_stats+0x355/0x5d0 mm/vmstat.c:874 vmstat_update+0xe/0xa0 mm/vmstat.c:1910 process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Modules linked in: ---[ end trace e038b7c668ec2f59 ]--- RIP: 0010:__free_one_page+0xa10/0xe30 mm/page_alloc.c:1073 Code: 43 34 85 c0 0f 84 79 f9 ff ff 48 c7 c6 80 1b 97 89 48 89 ef e8 61 dd f6 ff 0f 0b 48 c7 c6 60 1a 97 89 4c 89 ef e8 50 dd f6 ff <0f> 0b 0f 0b 48 c7 c6 c0 1a 97 89 4c 89 ef e8 3d dd f6 ff 0f 0b 48 RSP: 0018:ffffc90000ca7968 EFLAGS: 00010093 RAX: 0000000000000000 RBX: ffffc90000ca7a60 RCX: 0000000000000000 RDX: ffff888010e40000 RSI: ffffffff81b2f6b0 RDI: 0000000000000003 RBP: 0000000000152200 R08: 0000000000000018 R09: 00000000ffffffff R10: ffffffff88f44b19 R11: 00000000ffffffff R12: 0000000000000009 R13: ffffea0005488000 R14: 0000000000000000 R15: ffff88823fff8e00 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 0000000036db1000 CR4: 00000000001526f0 --- 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.