Hello, syzbot found the following issue on: HEAD commit: afead42fdfca Merge tag 'perf-tools-fixes-for-v6.4-2-2023-0.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=15f72e49280000 kernel config: https://syzkaller.appspot.com/x/.config?x=162cf2103e4a7453 dashboard link: https://syzkaller.appspot.com/bug?extid=4768a8f039aa677897d0 compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12da9bbd280000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=174e8115280000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/376b8e00429d/disk-afead42f.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/ac81705ce028/vmlinux-afead42f.xz kernel image: https://storage.googleapis.com/syzbot-assets/70c52b82e56a/bzImage-afead42f.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/248748d7ce8e/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4768a8f039aa677897d0@xxxxxxxxxxxxxxxxxxxxxxxxx ntfs: (device loop0): ntfs_attr_find(): Inode is corrupt. Run chkdsk. ntfs: (device loop0): ntfs_read_locked_inode(): Failed to lookup $DATA attribute. ntfs: (device loop0): ntfs_read_locked_inode(): Failed with error code -5. Marking corrupt inode 0x1 as bad. Run chkdsk. ntfs: (device loop0): load_system_files(): Failed to load $MFTMirr. Mounting read-only. Run ntfsfix and/or chkdsk. ================================================================================ UBSAN: shift-out-of-bounds in fs/ntfs/inode.c:1080:43 shift exponent 44 is too large for 32-bit type 'unsigned int' CPU: 0 PID: 5000 Comm: syz-executor185 Not tainted 6.4.0-rc4-syzkaller-00047-gafead42fdfca #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_shift_out_of_bounds+0x3c3/0x420 lib/ubsan.c:387 ntfs_read_locked_inode+0x4665/0x49c0 fs/ntfs/inode.c:1080 ntfs_iget+0x113/0x190 fs/ntfs/inode.c:177 load_and_init_upcase fs/ntfs/super.c:1663 [inline] load_system_files+0x151c/0x4840 fs/ntfs/super.c:1818 ntfs_fill_super+0x19b3/0x2bd0 fs/ntfs/super.c:2900 mount_bdev+0x2d0/0x3f0 fs/super.c:1380 legacy_get_tree+0xef/0x190 fs/fs_context.c:610 vfs_get_tree+0x8c/0x270 fs/super.c:1510 do_new_mount+0x28f/0xae0 fs/namespace.c:3039 do_mount fs/namespace.c:3382 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f183b0f1afa Code: 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd7f357638 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f183b0f1afa RDX: 0000000020000000 RSI: 000000002001ee80 RDI: 00007ffd7f357650 RBP: 00007ffd7f357650 R08: 00007ffd7f357690 R09: 000000000001ee62 R10: 0000000000000010 R11: 0000000000000286 R12: 0000000000000004 R13: 0000555555d422c0 R14: 0000000000000010 R15: 00007ffd7f357690 </TASK> ================================================================================ --- 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@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the bug is already fixed, 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 change bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
