From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DD3DD801 for ; Sun, 27 Oct 2024 00:25:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729988747; cv=none; b=nlmKcTjRxmCgMxUKDKFKks/4ze1Wnccq8efZYHK5hIUtPr/XCR81ZhjynQP0AwGJ50pB/SgOwxLJ0YU9aAqZeYsuWfXMper0Z56P6epaQUgmBLU/O+kv9LKWP507bKtLBB0MaLn06oc/VvAvYEjVGKroW72+yVotYJHhd5FU29g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729988747; c=relaxed/simple; bh=/Dz0/d5w67CSdo3+dmDTCiDWI/7BiZScEDMO4L/XjYg=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=Ykk/qd12m6Jt9r+xSLsqWrUi91NDuCoLlQOuDfENMHx8FCPfejUxKHdNl0p+JByJ4LRf3iwWHgRCiUjXGHihBGMYRdjMJkOZECw97IOuk7CgNTTa4+F1cC9tIa9BqCZFlvSUD3Ufhh0Kn1VdU4yZt9mcuY5MGAeZGpY5zitPkCI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.197 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f197.google.com with SMTP id e9e14a558f8ab-3a4f113d2c8so6052215ab.1 for ; Sat, 26 Oct 2024 17:25:44 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729988744; x=1730593544; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=/wPn9P5b5vRdI9Ux1xI18zAb0ubyp9U/n0ZDH/tkeYQ=; b=aT+z0XaCCCAEsWCPHKe+QADUm4BopxSwZFYzBIStOQUfp5Ko1xHMwtDU9VeT1L8oWy ESpoqHiNqXEv4p8/537jIsB0yeoR8/VC0g62vKfZdkHkh2cVttxo4iK1MYR0X/mpUg1b YgZOnTRiX3171AYi6GfOnP0cVn5b1/+/rh6aBIit13DNWRsJHB0NhB+mpzT3PsXlvkPz dL1l+B9LYVAei5p66kyfy3gYRJ8ALGD3ZMooqhxEv2TcUB8qgN1V/F5D4j0wt7WRbROH +pE5DAxQl5BtGYmeCim6yMYHhmkGAwTqXCtAXG57WmLXE/VczaWZID2fzjG4CH+LRB9T v44g== X-Forwarded-Encrypted: i=1; AJvYcCWqOWT1kYWAeAyjdcVi+zxk6pSW0uBSf+BScqX4Ifq5RB0Nh9BTSkWpkiRzfRaR0w9/jtoHUv+Ao2g2Fw==@lists.linux.dev X-Gm-Message-State: AOJu0YxNpH/uUNq/bZ1VIdRSp0UYmKZ1Bs+qwKqrDQcHZofkEsy7ZM/h GuN3uLPkuF6HN6VDq4pW92tomSDpIg4wS17A+W6ELTMEH4MrKNFapYNTixm3K1+y7erpxgNcDuK 3lY1JvYfo6hirqm9bWhk7teLRzrZ5CkShyTeteZjwMroiLCUjNroPo48= X-Google-Smtp-Source: AGHT+IFKz3qq5JWqjtEfBzq7Yotyr0psAF60CECWfQOLXUndQt09QTmYffuM9gK/Jslc3fAXndx4+oF32trZS5T/ODSraA1sWCel Precedence: bulk X-Mailing-List: ocfs2-devel@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1606:b0:39b:3894:9298 with SMTP id e9e14a558f8ab-3a4ed1bd7demr37436595ab.0.1729988743946; Sat, 26 Oct 2024 17:25:43 -0700 (PDT) Date: Sat, 26 Oct 2024 17:25:43 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <671d8887.050a0220.2fdf0c.0230.GAE@google.com> Subject: [syzbot] [ocfs2?] UBSAN: shift-out-of-bounds in ocfs2_fill_super (2) From: syzbot To: jlbec@evilplan.org, joseph.qi@linux.alibaba.com, linux-kernel@vger.kernel.org, mark@fasheh.com, ocfs2-devel@lists.linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: c2ee9f594da8 KVM: selftests: Fix build on on non-x86 archi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14008c30580000 kernel config: https://syzkaller.appspot.com/x/.config?x=fc6f8ce8c5369043 dashboard link: https://syzkaller.appspot.com/bug?extid=56f7cd1abe4b8e475180 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16ced0a7980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12008c30580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-c2ee9f59.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/8a3541902b13/vmlinux-c2ee9f59.xz kernel image: https://storage.googleapis.com/syzbot-assets/a00efacc2604/bzImage-c2ee9f59.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/4065d12afe1f/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+56f7cd1abe4b8e475180@syzkaller.appspotmail.com WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in fs/ocfs2/super.c:2336:10 shift exponent 32768 is too large for 32-bit type 'int' CPU: 0 UID: 0 PID: 5093 Comm: syz-executor204 Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_shift_out_of_bounds+0x3c8/0x420 lib/ubsan.c:468 ocfs2_verify_volume fs/ocfs2/super.c:2336 [inline] ocfs2_sb_probe fs/ocfs2/super.c:792 [inline] ocfs2_fill_super+0xf9c/0x5750 fs/ocfs2/super.c:988 mount_bdev+0x20a/0x2d0 fs/super.c:1679 legacy_get_tree+0xee/0x190 fs/fs_context.c:662 vfs_get_tree+0x90/0x2b0 fs/super.c:1800 do_new_mount+0x2be/0xb40 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8c48e89c7a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007ffd10baf0f8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffd10baf110 RCX: 00007f8c48e89c7a RDX: 00000000200002c0 RSI: 0000000020000040 RDI: 00007ffd10baf110 RBP: 0000000000000004 R08: 00007ffd10baf150 R09: 0000000000004434 R10: 00000000000008c0 R11: 0000000000000282 R12: 00000000000008c0 R13: 00007ffd10baf150 R14: 0000000000000003 R15: 0000000001000000 ---[ end trace ]--- --- 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. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup