loop0: detected capacity change from 0 to 64 ================================================================================ UBSAN: shift-out-of-bounds in fs/ntfs3/super.c:703:16 shift exponent -247 is negative CPU: 1 PID: 5845 Comm: syz-executor.0 Not tainted 5.14.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x57/0x7d lib/dump_stack.c:105 ubsan_epilogue+0x5/0x40 lib/ubsan.c:148 __ubsan_handle_shift_out_of_bounds.cold+0x61/0xe9 lib/ubsan.c:327 ntfs_fill_super.cold+0x66a/0x721 fs/ntfs3/attrib.c:1522 mount_bdev+0x2cb/0x3b0 fs/super.c:1368 legacy_get_tree+0xfa/0x1f0 fs/fs_context.c:610 vfs_get_tree+0x7f/0x2c0 fs/super.c:1498 do_new_mount fs/namespace.c:2905 [inline] path_mount+0x7f3/0x1a40 fs/namespace.c:3235 do_mount fs/namespace.c:3248 [inline] __do_sys_mount fs/namespace.c:3456 [inline] __se_sys_mount fs/namespace.c:3433 [inline] __x64_sys_mount+0x1f5/0x260 fs/namespace.c:3433 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f98b267e7aa Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 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:00007f98b1df1f88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f98b267e7aa RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f98b1df1fe0 RBP: 00007f98b1df2020 R08: 00007f98b1df2020 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f98b1df1fe0 R15: 0000000020003500 ================================================================================