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: 11807 Comm: syz-executor.2 Not tainted 6.2.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:ntfs_security_init+0x511/0xbd0 fs/ntfs3/fsntfs.c:1898 Code: 89 de e8 a2 22 bf fe 83 fb 1f 4c 8b 74 24 18 77 0a e8 73 1e bf fe 45 31 f6 eb 08 e8 69 1e bf fe 4d 01 ee 4c 89 f0 48 c1 e8 03 <42> 8a 04 38 84 c0 0f 85 ba 05 00 00 41 8b 1e 31 ff 89 de e8 67 22 RSP: 0018:ffffc900032d7960 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc9000b501000 RSI: 000000000002f20e RDI: 000000000002f20f RBP: ffffc900032d7a90 R08: ffffffff82ccbcee R09: 0000000000000000 R10: 0000000000000003 R11: ffff888020e99d40 R12: ffff8880779e4160 R13: ffff8880779e4240 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f4d9aa92700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f94b19ad988 CR3: 000000007e15f000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ntfs_fill_super+0x4110/0x45e0 fs/ntfs3/super.c:1287 get_tree_bdev+0x400/0x620 fs/super.c:1282 vfs_get_tree+0x88/0x270 fs/super.c:1489 do_new_mount+0x289/0xad0 fs/namespace.c:3145 do_mount fs/namespace.c:3488 [inline] __do_sys_mount fs/namespace.c:3697 [inline] __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3674 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: 0033:0x7f4d99c8d5da 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:00007f4d9aa91f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000001f175 RCX: 00007f4d99c8d5da RDX: 000000002001f180 RSI: 0000000020000040 RDI: 00007f4d9aa91fe0 RBP: 00007f4d9aa92020 R08: 00007f4d9aa92020 R09: 0000000000000010 R10: 0000000000000010 R11: 0000000000000202 R12: 000000002001f180 R13: 0000000020000040 R14: 00007f4d9aa91fe0 R15: 00000000200001c0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ntfs_security_init+0x511/0xbd0 fs/ntfs3/fsntfs.c:1898 Code: 89 de e8 a2 22 bf fe 83 fb 1f 4c 8b 74 24 18 77 0a e8 73 1e bf fe 45 31 f6 eb 08 e8 69 1e bf fe 4d 01 ee 4c 89 f0 48 c1 e8 03 <42> 8a 04 38 84 c0 0f 85 ba 05 00 00 41 8b 1e 31 ff 89 de e8 67 22 RSP: 0018:ffffc900032d7960 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc9000b501000 RSI: 000000000002f20e RDI: 000000000002f20f RBP: ffffc900032d7a90 R08: ffffffff82ccbcee R09: 0000000000000000 R10: 0000000000000003 R11: ffff888020e99d40 R12: ffff8880779e4160 R13: ffff8880779e4240 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f4d9aa92700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f94b19821b8 CR3: 000000007e15f000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 89 de mov %ebx,%esi 2: e8 a2 22 bf fe callq 0xfebf22a9 7: 83 fb 1f cmp $0x1f,%ebx a: 4c 8b 74 24 18 mov 0x18(%rsp),%r14 f: 77 0a ja 0x1b 11: e8 73 1e bf fe callq 0xfebf1e89 16: 45 31 f6 xor %r14d,%r14d 19: eb 08 jmp 0x23 1b: e8 69 1e bf fe callq 0xfebf1e89 20: 4d 01 ee add %r13,%r14 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 8a 04 38 mov (%rax,%r15,1),%al <-- trapping instruction 2e: 84 c0 test %al,%al 30: 0f 85 ba 05 00 00 jne 0x5f0 36: 41 8b 1e mov (%r14),%ebx 39: 31 ff xor %edi,%edi 3b: 89 de mov %ebx,%esi 3d: e8 .byte 0xe8 3e: 67 addr32 3f: 22 .byte 0x22