From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f206.google.com (mail-il1-f206.google.com [209.85.166.206]) (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 6488364D for ; Sat, 21 Dec 2024 07:08:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.206 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734764907; cv=none; b=g+7SBsf2dfGgzf4bUTn+d2yvcbGiS6ZzGKLq2TQiWdlfQyw9bshRKvBntDqFkoygEB2CJPDNRCWOEuD87vWmfajm4+TDxyOMHLCR8OC7pMWk5rrCZyRIi4yf+WlecLsKxy3iiA/Q435/6GOWp5sGD0GSqeuSvMhX5PD2JYwEqMg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734764907; c=relaxed/simple; bh=sbk8EY4pDjkE8h7lZpyzs7E0pM/gJQYLGFVh97aqxtM=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=a/mxSSVIbID8vGdcCoVXowQyRPr3jkbF/7xz7PUO9cgWRiipDdDRoChx7q9Vi0H3ANmkMw1GhiAl1PKzKfuflxb4jUkZTWZrACdP4JVVVcmZ8y0hbLZBoO/4wGFjrRglavOYl/nzg4WR31hJ+hZc1iaTcA7Z19pnU2P0hHigPeM= 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=209.85.166.206 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-f206.google.com with SMTP id e9e14a558f8ab-3a7cf41b54eso44650225ab.2 for ; Fri, 20 Dec 2024 23:08:25 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1734764904; x=1735369704; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=SvBnzJ0lhNuHKQPD6lds4yQBh2uuuHJdnQuJXvEZxEo=; b=wT4Q927/d0hZOqPFlEt4LeWihULPYEhnjDsRgLMlvSsjj4nUhfEGo/w/y+LO8AD4yn nfFgkuL05gE5//ZPzZXjzgIun77eBoi19pZx407G/avipa7BzFXd3TfDzTgdzb+GDx0t i8NMvER9JmMMmpigNW8z8DVw+OxE50tUTzAdjh+HaE/ZXJIHygTlj2fCTbUGGzpMIPwC uRFR84uyP7uBRYAl3gcWC3uiqRLVRIMyrZhs4hC5w9SNeALy36NdCG108Bw1IHJpiMps nzegk3C/vSCQifECoR9X3CTYh08dHwJIws6EqRCJBl5kCMbFucWuLf3YI5jDac+4cHdb CBGQ== X-Forwarded-Encrypted: i=1; AJvYcCXLGl4WDpJv+7C4LdRtHPyN64RWBnWU+iwhY93attxvhDpvlgv5qw5y7kcK+GCjFW9pYFmhw5YjMM8/OQs=@vger.kernel.org X-Gm-Message-State: AOJu0YzOeC2KC54OZ/CnPIGweW/++/NggjTrlg83Qr26BQYe2ewhVlsA 5n5jOqnL/ijX7SRPSsMmUJDKLDZJpc/Jx0V4wpoExnHmUuWpPrcueAZiw4NVgYc3ohZrVU5zZuN 4V2JKpLv/dMMBnwkgdeM7Gn7vXwL8vr1pc3w/b/yyksDh3xJglmn6+0U= X-Google-Smtp-Source: AGHT+IE22SX3YeQbFC4p5xHr6RBBnt1HbUPzte6Vs9+6To4c1omPskd8/v5GNqXXJi29vdz91URssecWqF8WBLJTsdEGr4WGXA9U Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:17cd:b0:3a6:b783:3c06 with SMTP id e9e14a558f8ab-3c2d51528b4mr57727635ab.19.1734764904614; Fri, 20 Dec 2024 23:08:24 -0800 (PST) Date: Fri, 20 Dec 2024 23:08:24 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67666968.050a0220.25abdd.0127.GAE@google.com> Subject: [syzbot] [jfs?] UBSAN: array-index-out-of-bounds in dtReadFirst (2) From: syzbot To: jfs-discussion@lists.sourceforge.net, linux-kernel@vger.kernel.org, shaggy@kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 59dbb9d81adf Merge tag 'xsa465+xsa466-6.13-tag' of git://g.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15a64b44580000 kernel config: https://syzkaller.appspot.com/x/.config?x=6a2b862bf4a5409f dashboard link: https://syzkaller.appspot.com/bug?extid=9120834fc227768625ba compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-59dbb9d8.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/e0cc89779297/vmlinux-59dbb9d8.xz kernel image: https://storage.googleapis.com/syzbot-assets/5e6c895062cb/bzImage-59dbb9d8.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+9120834fc227768625ba@syzkaller.appspotmail.com loop0: detected capacity change from 0 to 32768 syz.0.0: attempt to access beyond end of device loop0: rw=1, sector=4680032, nr_sectors = 8 limit=32768 metapage_write_end_io: I/O error ERROR: (device loop0): release_metapage: metapage_write_one() failed ERROR: (device loop0): remounting filesystem as read-only blkno = 8ed2c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 8ed2c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map UFO tlock:0xffffc90001537090 ------------[ cut here ]------------ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:3096:10 index 237 is out of range for type 'struct dtslot[128]' CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Not tainted 6.13.0-rc3-syzkaller-00026-g59dbb9d81adf #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_out_of_bounds+0x121/0x150 lib/ubsan.c:429 dtReadFirst+0x622/0xc50 fs/jfs/jfs_dtree.c:3096 dtReadNext fs/jfs/jfs_dtree.c:3147 [inline] jfs_readdir+0x9aa/0x3c50 fs/jfs/jfs_dtree.c:2862 wrap_directory_iterator+0x91/0xd0 fs/readdir.c:65 iterate_dir+0x571/0x800 fs/readdir.c:108 __do_sys_getdents fs/readdir.c:322 [inline] __se_sys_getdents+0x1fd/0x4e0 fs/readdir.c:308 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: 0033:0x7f6e27385d29 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6e28204038 EFLAGS: 00000246 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 00007f6e27575fa0 RCX: 00007f6e27385d29 RDX: 00000000000000b8 RSI: 0000000020001fc0 RDI: 0000000000000005 RBP: 00007f6e27401a20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f6e27575fa0 R15: 00007ffdef535ad8 ---[ 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 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