general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 5328 Comm: syz-executor.3 Not tainted 6.3.0-rc7-syzkaller-00152-g2af3e53a4dc0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 RIP: 0010:ntfs_security_init+0x566/0xc20 fs/ntfs3/fsntfs.c:1898 Code: c3 fe 83 fb 1f 77 0a e8 48 0d c3 fe 45 31 e4 eb 08 e8 3e 0d c3 fe 4d 01 ec 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 bd 05 00 00 41 8b 1c 24 31 ff 89 de e8 c1 RSP: 0018:ffffc9000511f940 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000 RDX: ffffc90006da9000 RSI: 000000000002c8ad RDI: 000000000002c8ae RBP: ffffc9000511fa70 R08: ffffffff82c76c3e R09: 0000000000000000 R10: 0000000000000003 R11: ffff88801e1e8000 R12: 0000000000000000 R13: ffff888020045238 R14: 00000000000000c8 R15: 1ffff92000a23f30 FS: 00007fd555934700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f78d41a4000 CR3: 00000000228e0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> ntfs_fill_super+0x433f/0x47f0 fs/ntfs3/super.c:1287 get_tree_bdev+0x402/0x620 fs/super.c:1303 vfs_get_tree+0x8c/0x270 fs/super.c:1510 do_new_mount+0x28f/0xae0 fs/namespace.c:3042 do_mount fs/namespace.c:3385 [inline] __do_sys_mount fs/namespace.c:3594 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3571 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: 0033:0x7fd554c8d69a 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:00007fd555933f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000001f400 RCX: 00007fd554c8d69a RDX: 0000000020000180 RSI: 0000000020000000 RDI: 00007fd555933fe0 RBP: 00007fd555934020 R08: 00007fd555934020 R09: 0000000000000011 R10: 0000000000000011 R11: 0000000000000202 R12: 0000000020000180 R13: 0000000020000000 R14: 00007fd555933fe0 R15: 0000000020000040 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ntfs_security_init+0x566/0xc20 fs/ntfs3/fsntfs.c:1898 Code: c3 fe 83 fb 1f 77 0a e8 48 0d c3 fe 45 31 e4 eb 08 e8 3e 0d c3 fe 4d 01 ec 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 bd 05 00 00 41 8b 1c 24 31 ff 89 de e8 c1 RSP: 0018:ffffc9000511f940 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000 RDX: ffffc90006da9000 RSI: 000000000002c8ad RDI: 000000000002c8ae RBP: ffffc9000511fa70 R08: ffffffff82c76c3e R09: 0000000000000000 R10: 0000000000000003 R11: ffff88801e1e8000 R12: 0000000000000000 R13: ffff888020045238 R14: 00000000000000c8 R15: 1ffff92000a23f30 FS: 00007fd555934700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa42811e000 CR3: 00000000228e0000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: c3 retq 1: fe 83 fb 1f 77 0a incb 0xa771ffb(%rbx) 7: e8 48 0d c3 fe callq 0xfec30d54 c: 45 31 e4 xor %r12d,%r12d f: eb 08 jmp 0x19 11: e8 3e 0d c3 fe callq 0xfec30d54 16: 4d 01 ec add %r13,%r12 19: 4c 89 e0 mov %r12,%rax 1c: 48 c1 e8 03 shr $0x3,%rax 20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 27: fc ff df * 2a: 0f b6 04 08 movzbl (%rax,%rcx,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 0f 85 bd 05 00 00 jne 0x5f3 36: 41 8b 1c 24 mov (%r12),%ebx 3a: 31 ff xor %edi,%edi 3c: 89 de mov %ebx,%esi 3e: e8 .byte 0xe8 3f: c1 .byte 0xc1