loop0: detected capacity change from 0 to 64 ================================================================================ UBSAN: shift-out-of-bounds in fs/ntfs3/super.c:675:13 shift exponent -247 is negative CPU: 0 PID: 3610 Comm: syz-executor252 Not tainted 6.0.0-rc2-syzkaller-00191-g3e5c673f0d75 #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+0xcd/0x134 lib/dump_stack.c:106 ubsan_epilogue+0xb/0x50 lib/ubsan.c:151 __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x187 lib/ubsan.c:322 parse_ntfs_boot_sector fs/ntfs/super.c:784 [inline] ntfs_fill_super.cold+0x147/0x56c fs/ntfs/super.c:2791 get_tree_bdev+0x440/0x760 fs/super.c:1323 vfs_get_tree+0x89/0x2f0 fs/super.c:1530 do_new_mount fs/namespace.c:3040 [inline] path_mount+0x1326/0x1e20 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f1b0867c10a 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:00007ffe209f3db8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffe209f3e10 RCX: 00007f1b0867c10a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe209f3dd0 RBP: 00007ffe209f3dd0 R08: 00007ffe209f3e10 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000286 R12: 0000000020000230 R13: 0000000000000003 R14: 0000000000000004 R15: 0000000000000002 ================================================================================