ntfs3: loop5: RAW NTFS volume: Filesystem size 0.00 Gb > volume size 0.00 Gb. Mount in read-only general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] CPU: 0 PID: 3634 Comm: syz-executor307 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 RIP: 0010:ntfs_init_from_boot fs/ntfs3/super.c:844 [inline] RIP: 0010:ntfs_fill_super+0x13b3/0x37f0 fs/ntfs3/super.c:935 Code: 48 c1 ea 03 80 3c 02 00 0f 85 a6 20 00 00 48 8b 04 24 4c 89 e2 48 c1 ea 03 4c 89 a0 80 00 00 00 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e a6 20 00 00 49 8d 7c 24 04 41 RSP: 0018:ffffc900040dfbc8 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: ffff88807be74000 RCX: 0000000000000000 RDX: 0000000000000002 RSI: ffffffff82ac1571 RDI: ffff88807d756080 RBP: ffff88807d756000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 46203a656d756c6f R12: 0000000000000010 R13: 0000000000000000 R14: 00000000000001ff R15: ffff8880733a2ae0 FS: 0000555555a6b300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ee12339000 CR3: 0000000026269000 CR4: 0000000000350ef0 Call Trace: 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: 0033:0x7fd08c0d311a Code: 48 c7 c2 c0 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 a8 00 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc712f0548 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fd08c0d311a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffc712f0560 RBP: 00007ffc712f0560 R08: 00007ffc712f05a0 R09: 0000555555a6b2c0 R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000005 R13: 00007ffc712f05a0 R14: 0000000000000037 R15: 0000000020000728 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ntfs_init_from_boot fs/ntfs3/super.c:844 [inline] RIP: 0010:ntfs_fill_super+0x13b3/0x37f0 fs/ntfs3/super.c:935 Code: 48 c1 ea 03 80 3c 02 00 0f 85 a6 20 00 00 48 8b 04 24 4c 89 e2 48 c1 ea 03 4c 89 a0 80 00 00 00 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e a6 20 00 00 49 8d 7c 24 04 41 RSP: 0018:ffffc900040dfbc8 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: ffff88807be74000 RCX: 0000000000000000 RDX: 0000000000000002 RSI: ffffffff82ac1571 RDI: ffff88807d756080 RBP: ffff88807d756000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 46203a656d756c6f R12: 0000000000000010 R13: 0000000000000000 R14: 00000000000001ff R15: ffff8880733a2ae0 FS: 0000555555a6b300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ee12339000 CR3: 0000000026269000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: 48 c1 ea 03 shr $0x3,%rdx 4: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 8: 0f 85 a6 20 00 00 jne 0x20b4 e: 48 8b 04 24 mov (%rsp),%rax 12: 4c 89 e2 mov %r12,%rdx 15: 48 c1 ea 03 shr $0x3,%rdx 19: 4c 89 a0 80 00 00 00 mov %r12,0x80(%rax) 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 74 08 je 0x3a 32: 3c 03 cmp $0x3,%al 34: 0f 8e a6 20 00 00 jle 0x20e0 3a: 49 8d 7c 24 04 lea 0x4(%r12),%rdi 3f: 41 rex.B