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 4D0ABC05027 for ; Tue, 7 Feb 2023 02:47:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229646AbjBGCrU (ORCPT ); Mon, 6 Feb 2023 21:47:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43456 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229490AbjBGCrS (ORCPT ); Mon, 6 Feb 2023 21:47:18 -0500 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6D5B323C76 for ; Mon, 6 Feb 2023 18:47:16 -0800 (PST) Received: by mail-io1-f72.google.com with SMTP id b10-20020a5ea70a000000b0071a96a509a7so8319715iod.22 for ; Mon, 06 Feb 2023 18:47:16 -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:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=A9LC2tPa4BEj35+AqKSCADQQwrolY8Ls2H7/MLFWbXI=; b=E6oTACe8H5PL/bNQmKLdmRRpy0AC3Ztd0jDqFrsvhBHbURtsDI+CNeI+hMI+BrwYcU bR/ceHMoMS6R2GS/YLc082x6cbfMz4gLxjyehPvukXDyUYDzBGHilrvoVJDxOdIE/hxL b3PEW7UdMbPH5oCc3itSKakV9zx1lA7D8Y2dqZN6KEEBZpBhhwM5MWyXr8PT+Uenno3q ig1PT3aJ5LN8nGymFnsqXbwff8Yf1+WEF0wxNzunLTSk8TDfxUIdlaqmVYIdVxWp19aj QOMD4aEY2DLzJSDuU+tVNSF97xJWjLu5YRs0PM9CwUUFWtbqhVZ9dpTpQ/5YNf6Rrjrb pwpw== X-Gm-Message-State: AO0yUKXtbjv0jmCnwrJ3wkLLDPKhMq9KPkIxYEycsMw8sxNXQW0SONB8 bBIiLNl7FDu25wgYY4rlBecJkwJpsYbdtXszw3RdUyOg8lIf X-Google-Smtp-Source: AK7set9vjsa3/S9a5S62+01Bt6AN0t9KoWXq+sofxDZOPY6aSYivseIp0P3pBRqgZu6entPPqe8eJ1MXqs2/lGuY39SDSQzl+aab MIME-Version: 1.0 X-Received: by 2002:a6b:3e09:0:b0:731:b0cf:1742 with SMTP id l9-20020a6b3e09000000b00731b0cf1742mr833888ioa.78.1675738035743; Mon, 06 Feb 2023 18:47:15 -0800 (PST) Date: Mon, 06 Feb 2023 18:47:15 -0800 In-Reply-To: <20230207023236.975-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005b75e305f4132a17@google.com> Subject: Re: [syzbot] kernel BUG in process_one_work From: syzbot To: hdanton@sina.com, linux-kernel@vger.kernel.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 has tested the proposed patch but the reproducer is still triggering an issue: kernel BUG in __tlb_remove_page_size page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1453 [inline] free_pcp_prepare+0x4d0/0x910 mm/page_alloc.c:1503 free_unref_page_prepare mm/page_alloc.c:3390 [inline] free_unref_page+0x1d/0x490 mm/page_alloc.c:3485 free_reserved_page include/linux/mm.h:2796 [inline] free_reserved_area+0x15d/0x200 mm/page_alloc.c:8538 free_init_pages+0x94/0xc0 arch/x86/mm/init.c:915 kernel_init+0x32/0x2c0 init/main.c:1531 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 ------------[ cut here ]------------ kernel BUG at mm/mmu_gather.c:139! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5672 Comm: dhcpcd-run-hook Not tainted 6.2.0-rc6-next-20230203-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:__tlb_remove_page_size+0x24c/0x480 mm/mmu_gather.c:139 Code: 01 00 00 8b 6d 0c e9 e1 fe ff ff e8 ae 63 c1 ff 0f 0b e8 a7 63 c1 ff 4c 89 f7 48 c7 c6 c0 77 58 8a 48 83 e7 fc e8 64 0b fa ff <0f> 0b e8 8d 63 c1 ff 4c 8d 6b 24 48 b8 00 00 00 00 00 fc ff df 4c RSP: 0018:ffffc90005a6f5d0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffffc90005a6f9d0 RCX: 0000000000000000 RDX: ffff88801ed80000 RSI: ffffffff81c3070c RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8e751757 R10: fffffbfff1cea2ea R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000001 R14: ffffea00003fde40 R15: ffffc90005a6f9f8 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6eb4c40900 CR3: 0000000071157000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __tlb_remove_page include/asm-generic/tlb.h:472 [inline] zap_pte_range mm/memory.c:1416 [inline] zap_pmd_range mm/memory.c:1536 [inline] zap_pud_range mm/memory.c:1565 [inline] zap_p4d_range mm/memory.c:1586 [inline] unmap_page_range+0x1226/0x3ce0 mm/memory.c:1607 unmap_single_vma+0x194/0x2a0 mm/memory.c:1653 unmap_vmas+0x234/0x380 mm/memory.c:1692 exit_mmap+0x190/0x7d0 mm/mmap.c:3036 __mmput+0x128/0x4c0 kernel/fork.c:1209 mmput+0x60/0x70 kernel/fork.c:1231 exec_mmap fs/exec.c:1034 [inline] begin_new_exec+0xf69/0x2e60 fs/exec.c:1293 load_elf_binary+0x801/0x4ff0 fs/binfmt_elf.c:1001 search_binary_handler fs/exec.c:1736 [inline] exec_binprm fs/exec.c:1778 [inline] bprm_execve fs/exec.c:1853 [inline] bprm_execve+0x7fd/0x1b00 fs/exec.c:1809 do_execveat_common+0x72c/0x8e0 fs/exec.c:1961 do_execve fs/exec.c:2035 [inline] __do_sys_execve fs/exec.c:2111 [inline] __se_sys_execve fs/exec.c:2106 [inline] __x64_sys_execve+0x93/0xc0 fs/exec.c:2106 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: 0033:0x7f6eb4bb0337 Code: Unable to access opcode bytes at 0x7f6eb4bb030d. RSP: 002b:00007ffe1aff9aa8 EFLAGS: 00000246 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 000055f08f0f5e40 RCX: 00007f6eb4bb0337 RDX: 000055f08f0f5e68 RSI: 000055f08f0f5e40 RDI: 000055f08f0f5ef8 RBP: 000055f08f0f5ef8 R08: 000055f08f0f5efd R09: 00007f6eb4da2000 R10: 00007f6eb4a46800 R11: 0000000000000246 R12: 000055f08f0f5e68 R13: 00007f6eb4d55ff4 R14: 000055f08f0f5e68 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__tlb_remove_page_size+0x24c/0x480 mm/mmu_gather.c:139 Code: 01 00 00 8b 6d 0c e9 e1 fe ff ff e8 ae 63 c1 ff 0f 0b e8 a7 63 c1 ff 4c 89 f7 48 c7 c6 c0 77 58 8a 48 83 e7 fc e8 64 0b fa ff <0f> 0b e8 8d 63 c1 ff 4c 8d 6b 24 48 b8 00 00 00 00 00 fc ff df 4c RSP: 0018:ffffc90005a6f5d0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffffc90005a6f9d0 RCX: 0000000000000000 RDX: ffff88801ed80000 RSI: ffffffff81c3070c RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8e751757 R10: fffffbfff1cea2ea R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000001 R14: ffffea00003fde40 R15: ffffc90005a6f9f8 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6eb4bb030d CR3: 0000000071157000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Tested on: commit: 4fafd969 Add linux-next specific files for 20230203 git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git console output: https://syzkaller.appspot.com/x/log.txt?x=13b20813480000 kernel config: https://syzkaller.appspot.com/x/.config?x=1d2fba7d42502ca4 dashboard link: https://syzkaller.appspot.com/bug?extid=c0998868487c1f7e05e5 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=163a5987480000