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 C64D8C77B72 for ; Fri, 14 Apr 2023 19:56:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229847AbjDNT4p (ORCPT ); Fri, 14 Apr 2023 15:56:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55346 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229650AbjDNT4o (ORCPT ); Fri, 14 Apr 2023 15:56:44 -0400 Received: from mail-io1-f79.google.com (mail-io1-f79.google.com [209.85.166.79]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E067D4C39 for ; Fri, 14 Apr 2023 12:56:41 -0700 (PDT) Received: by mail-io1-f79.google.com with SMTP id t2-20020a6bc302000000b00760c588931aso932826iof.22 for ; Fri, 14 Apr 2023 12:56:41 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681502201; x=1684094201; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=mtNyJU7opl/X5r0f9B+P211YtBrbp1eSIxo/w5hCQrE=; b=QxnezJldfnrJbS1pgSOQnqEKrpbS+goaXLThvx4+DAbfdnZWg7xcTIfoUQxec5vYX7 W9ok0PYr5NN4xmYWNpzCWbdDm69ksLSCuvrrjiAf0vYkJ8qSm5zUaafPX4R+BdlruT9P doIVXL0tqxu9atCElclo+Jlhw4sFzkvHkXFEtSaMQKTj/vZMnikVst/HFLyr/X8uX51b xIVW+CvSsJ3Z78aUykfP5Z4lHjF5rl8tFDCWTAn5ROx/ZJ9COUSZPSgGEKT3FhU/SXWz CSpzk+7/BN6iFtCC+5OlacvtJPxdPazCizFyXoG3zVfQLOguzrB7njI/PUQdGYEqQq9W L1sw== X-Gm-Message-State: AAQBX9efxeIMGCnOPCzuRfcznftZvfN3JWLGCzQyCNKPCKAmciM+cHSs kPu6CFt8yRnw/JPMhKrx+qzdyzyxdYS6TPngEUMTZt01K9Yb X-Google-Smtp-Source: AKy350b5V1+SPa2Y/FrYgxpYzFWnAdt31CYFlL1xMYpkYmmrGo9g/qrmO8OmB3Vuby3nb6lvWBaatOLJEPeJehyuAJ5i3FPYPCwu MIME-Version: 1.0 X-Received: by 2002:a05:6638:380d:b0:40d:97fe:8399 with SMTP id i13-20020a056638380d00b0040d97fe8399mr5682505jav.0.1681502201177; Fri, 14 Apr 2023 12:56:41 -0700 (PDT) Date: Fri, 14 Apr 2023 12:56:41 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000063ec4705f9513d4f@google.com> Subject: [syzbot] [mm?] WARNING in unmap_page_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: e134c93f788f Add linux-next specific files for 20230406 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=13b57c17c80000 kernel config: https://syzkaller.appspot.com/x/.config?x=7a0548c6ce6e9842 dashboard link: https://syzkaller.appspot.com/bug?extid=78c74557d14e8d51e013 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/b617d686938d/disk-e134c93f.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/3ac3406cd427/vmlinux-e134c93f.xz kernel image: https://storage.googleapis.com/syzbot-assets/6b08a19acadb/bzImage-e134c93f.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+78c74557d14e8d51e013@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 24899 at mm/memory.c:1491 zap_pte_range mm/memory.c:1491 [inline] WARNING: CPU: 1 PID: 24899 at mm/memory.c:1491 zap_pmd_range mm/memory.c:1564 [inline] WARNING: CPU: 1 PID: 24899 at mm/memory.c:1491 zap_pud_range mm/memory.c:1593 [inline] WARNING: CPU: 1 PID: 24899 at mm/memory.c:1491 zap_p4d_range mm/memory.c:1614 [inline] WARNING: CPU: 1 PID: 24899 at mm/memory.c:1491 unmap_page_range+0x1c07/0x39b0 mm/memory.c:1635 Modules linked in: CPU: 1 PID: 24899 Comm: syz-executor.0 Not tainted 6.3.0-rc5-next-20230406-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 RIP: 0010:zap_pte_range mm/memory.c:1491 [inline] RIP: 0010:zap_pmd_range mm/memory.c:1564 [inline] RIP: 0010:zap_pud_range mm/memory.c:1593 [inline] RIP: 0010:zap_p4d_range mm/memory.c:1614 [inline] RIP: 0010:unmap_page_range+0x1c07/0x39b0 mm/memory.c:1635 Code: 83 fb 02 0f 86 ff 0c 00 00 e8 85 4b c2 ff 44 89 e6 bf 1f 00 00 00 e8 98 47 c2 ff 41 83 fc 1f 0f 84 38 0e 00 00 e8 69 4b c2 ff <0f> 0b e9 da ef ff ff e8 5d 4b c2 ff 4c 89 e5 31 ff 4c 89 e3 81 e5 RSP: 0018:ffffc90004ef76f8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 RDX: ffff8880829f0000 RSI: ffffffff81c10c67 RDI: 0000000000000007 RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000001f R13: 0000000020679000 R14: dffffc0000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33523000 CR3: 000000007b6c6000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: unmap_single_vma+0x19a/0x2b0 mm/memory.c:1681 unmap_vmas+0x234/0x380 mm/memory.c:1720 exit_mmap+0x190/0x930 mm/mmap.c:3063 __mmput+0x13a/0x540 kernel/fork.c:1344 mmput+0x60/0x70 kernel/fork.c:1366 exit_mm kernel/exit.c:564 [inline] do_exit+0x9d7/0x29f0 kernel/exit.c:858 do_group_exit+0xd4/0x2a0 kernel/exit.c:1021 get_signal+0x2315/0x25b0 kernel/signal.c:2859 arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:307 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f80caa8c169 Code: Unable to access opcode bytes at 0x7f80caa8c13f. RSP: 002b:00007f80c95fe218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f80cababf88 RCX: 00007f80caa8c169 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f80cababf88 RBP: 00007f80cababf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f80cababf8c R13: 00007ffc884fac6f R14: 00007f80c95fe300 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.