ntfs3: loop4: Mark volume as dirty due to NTFS errors general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 PID: 9447 Comm: syz-executor.4 Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 RIP: 0010:d_flags_for_inode fs/dcache.c:1971 [inline] RIP: 0010:__d_add+0x54d/0x800 fs/dcache.c:2796 Code: 20 48 89 d8 48 c1 e8 03 48 bd 00 00 00 00 00 fc ff df 80 3c 28 00 74 08 48 89 df e8 5d c1 ea ff 48 8b 1b 48 89 d8 48 c1 e8 03 <80> 3c 28 00 74 08 48 89 df e8 45 c1 ea ff 48 83 3b 00 0f 84 28 02 RSP: 0018:ffffc90015147970 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000002 RDX: ffff88807a0b5880 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffffff81ef2658 R09: ffff888075bbfe88 R10: ffffed100eb77fd3 R11: 1ffff1100eb77fd1 R12: 0000000000000008 R13: 1ffff1100708d4e6 R14: ffff888075bbfd60 R15: 0000000000004000 FS: 00007f792ee6b700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c02110d175 CR3: 0000000020527000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_splice_alias+0x122/0x3b0 fs/dcache.c:3191 __lookup_slow+0x266/0x3a0 fs/namei.c:1685 lookup_slow+0x53/0x70 fs/namei.c:1702 walk_component+0x2e1/0x410 fs/namei.c:1993 lookup_last fs/namei.c:2450 [inline] path_lookupat+0x17d/0x450 fs/namei.c:2474 filename_lookup+0x274/0x650 fs/namei.c:2503 user_path_at_empty+0x40/0x1a0 fs/namei.c:2876 user_path_at include/linux/namei.h:57 [inline] __do_sys_chdir fs/open.c:514 [inline] __se_sys_chdir+0xb8/0x220 fs/open.c:508 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f792dc8b5a9 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f792ee6b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000050 RAX: ffffffffffffffda RBX: 00007f792ddabf80 RCX: 00007f792dc8b5a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020002380 RBP: 00007f792dce6580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd6de5113f R14: 00007f792ee6b300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:d_flags_for_inode fs/dcache.c:1971 [inline] RIP: 0010:__d_add+0x54d/0x800 fs/dcache.c:2796 Code: 20 48 89 d8 48 c1 e8 03 48 bd 00 00 00 00 00 fc ff df 80 3c 28 00 74 08 48 89 df e8 5d c1 ea ff 48 8b 1b 48 89 d8 48 c1 e8 03 <80> 3c 28 00 74 08 48 89 df e8 45 c1 ea ff 48 83 3b 00 0f 84 28 02 RSP: 0018:ffffc90015147970 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000002 RDX: ffff88807a0b5880 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffffff81ef2658 R09: ffff888075bbfe88 R10: ffffed100eb77fd3 R11: 1ffff1100eb77fd1 R12: 0000000000000008 R13: 1ffff1100708d4e6 R14: ffff888075bbfd60 R15: 0000000000004000 FS: 00007f792ee6b700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c02110d175 CR3: 0000000020527000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 48 89 d8 mov %rbx,%rax 3: 48 c1 e8 03 shr $0x3,%rax 7: 48 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%rbp e: fc ff df 11: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1) 15: 74 08 je 0x1f 17: 48 89 df mov %rbx,%rdi 1a: e8 5d c1 ea ff callq 0xffeac17c 1f: 48 8b 1b mov (%rbx),%rbx 22: 48 89 d8 mov %rbx,%rax 25: 48 c1 e8 03 shr $0x3,%rax * 29: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1) <-- trapping instruction 2d: 74 08 je 0x37 2f: 48 89 df mov %rbx,%rdi 32: e8 45 c1 ea ff callq 0xffeac17c 37: 48 83 3b 00 cmpq $0x0,(%rbx) 3b: 0f .byte 0xf 3c: 84 28 test %ch,(%rax) 3e: 02 .byte 0x2