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 873A4C54EBD for ; Mon, 9 Jan 2023 15:49:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237272AbjAIPs3 (ORCPT ); Mon, 9 Jan 2023 10:48:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32778 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233951AbjAIPrq (ORCPT ); Mon, 9 Jan 2023 10:47:46 -0500 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0E3861A079 for ; Mon, 9 Jan 2023 07:47:38 -0800 (PST) Received: by mail-il1-f198.google.com with SMTP id z8-20020a056e02088800b0030c247efc7dso6308572ils.15 for ; Mon, 09 Jan 2023 07:47:38 -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=DUwZds0wjLkQnBIYbIWoN/PPnQGOvTGLK3WZZ9CM4pQ=; b=WMkYUXpO601w1C3S6jPW6sDVf6ligWpMbAD6IFjqkVXq8gWbi8WcuA6yUwRcHdfzbU C5vCNDRy3wEV+qtwC8xCbXBbPseDX4uWdWEEXLUNf8MRYcAiFuRsOC+gE/0K6xavo2h3 5hFTmRmjg4OyO1ohcTscEBj5gtpw9AePPl80XTyyUdM1nnzKqCSZy6n3n4ITtQqcRcI2 Xet9turyv/9SmWVDkn/VRXE2VIiHQja2aV6daS2E2I5W8J2LHhM4rZn24iivWMPqXL8B WmbMFQV6oft6pXLXw880Wlq9GudX37YM+Z4zEmGRnPX3qEOWiT0A1LVzxCmKapdmjIGS ikUg== X-Gm-Message-State: AFqh2kr89ePSnUMIYZyq3cyZlyH3rLFiW7cWnCeOM0DkS1pE8jEiNP3I b+22hpifkhLEEDdSY8bdURH1bD/SKFVaSyKN4K+lSzfL6fAJ X-Google-Smtp-Source: AMrXdXuBHqH78nVaV84wwbLsXQ7Y5s6G9Lb6PRlp7Xhzk5VFoOYq6TNp9zYUmoJldNh/EjXY5JXxqwyMujbzdzPa2h5p6rUHCc8+ MIME-Version: 1.0 X-Received: by 2002:a02:7352:0:b0:375:bc14:b202 with SMTP id a18-20020a027352000000b00375bc14b202mr4230956jae.244.1673279257349; Mon, 09 Jan 2023 07:47:37 -0800 (PST) Date: Mon, 09 Jan 2023 07:47:37 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000be991505f1d6afb3@google.com> Subject: [syzbot] [reiserfs?] BUG: unable to handle kernel paging request in reiserfs_lookup From: syzbot To: linux-kernel@vger.kernel.org, reiserfs-devel@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 found the following issue on: HEAD commit: 247f34f7b803 Linux 6.1-rc2 git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=1619246e480000 kernel config: https://syzkaller.appspot.com/x/.config?x=fa9bed8d6a8992a0 dashboard link: https://syzkaller.appspot.com/bug?extid=a99186f624245fd88b94 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/05f9a7fca332/disk-247f34f7.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/ec50c3ad7d48/vmlinux-247f34f7.xz kernel image: https://storage.googleapis.com/syzbot-assets/1446f94b11ed/Image-247f34f7.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+a99186f624245fd88b94@syzkaller.appspotmail.com Unable to handle kernel paging request at virtual address ffff80000d2e2c80 Mem abort info: ESR = 0x0000000096000047 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x07: level 3 translation fault Data abort info: ISV = 0, ISS = 0x00000047 CM = 0, WnR = 1 swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000001c54db000 [ffff80000d2e2c80] pgd=100000023ffff003, p4d=100000023ffff003, pud=100000023fffe003, pmd=100000023fffa003, pte=0000000000000000 Internal error: Oops: 0000000096000047 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 21788 Comm: syz-executor.3 Not tainted 6.1.0-rc2-syzkaller-154433-g247f34f7b803 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : queued_spin_lock_slowpath+0x198/0x394 kernel/locking/qspinlock.c:474 lr : queued_spin_lock_slowpath+0x114/0x394 kernel/locking/qspinlock.c:405 sp : ffff80001400b850 x29: ffff80001400b850 x28: ffff80000eec9000 x27: ffff80000cbb6d47 x26: 0000000000000000 x25: 0000000000000000 x24: ffff0001fefefc80 x23: 0000000000000000 x22: ffff80000d37d050 x21: ffff80000d2e2c80 x20: 0000000000000001 x19: ffff00011e189430 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000001fb8 x12: 0000000000000000 x11: ffff80000d2e2c80 x10: 0000000000080000 x9 : ffff0001fefefc88 x8 : ffff0001fefefc80 x7 : 0000000000000000 x6 : ffff80000c08f3c8 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000001 x1 : ffff80000ce889e3 x0 : 0000000000000001 Call trace: decode_tail kernel/locking/qspinlock.c:131 [inline] queued_spin_lock_slowpath+0x198/0x394 kernel/locking/qspinlock.c:471 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock+0x10c/0x110 kernel/locking/spinlock_debug.c:115 __raw_spin_lock include/linux/spinlock_api_smp.h:134 [inline] _raw_spin_lock+0x5c/0x6c kernel/locking/spinlock.c:154 __mutex_lock_common+0x2a4/0xca8 kernel/locking/mutex.c:617 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 reiserfs_write_lock+0x3c/0x64 fs/reiserfs/lock.c:27 reiserfs_lookup+0xa4/0x1c4 fs/reiserfs/namei.c:364 lookup_open fs/namei.c:3391 [inline] open_last_lookups fs/namei.c:3481 [inline] path_openat+0x738/0x11c4 fs/namei.c:3710 do_filp_open+0xdc/0x1b8 fs/namei.c:3740 do_sys_openat2+0xb8/0x22c fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __arm64_sys_openat+0xb0/0xe0 fs/open.c:1337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 Code: 8b2c4ecc f85f818c 1200056b 8b2b52ab (f82b6988) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 8b2c4ecc add x12, x22, w12, uxtw #3 4: f85f818c ldur x12, [x12, #-8] 8: 1200056b and w11, w11, #0x3 c: 8b2b52ab add x11, x21, w11, uxtw #4 * 10: f82b6988 str x8, [x12, x11] <-- trapping instruction --- 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.