ntfs3(loop0): ino=1b, "file0" ntfs_rename Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 UID: 0 PID: 5313 Comm: syz-executor352 Not tainted 6.16.0-rc2-syzkaller-00024-g9afe652958c3 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:pick_link+0x4f1/0xe80 fs/namei.c:1949 Code: 4c 89 f7 e8 81 fa ea ff 4d 8b 36 4d 85 f6 0f 84 9b 00 00 00 e8 50 7c 87 ff 49 bf 00 00 00 00 00 fc ff df 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 b9 06 00 00 41 0f b6 2e bf 2f 00 00 00 RSP: 0018:ffffc9000d2477e8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffc9000d247908 RCX: ffff88801a34c880 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff823d3d98 R10: 000000003b9aca00 R11: ffffffff823cb0a0 R12: 1ffff92001a48f8b R13: ffffc9000d247c20 R14: 0000000000000002 R15: dffffc0000000000 FS: 00005555725f0380(0000) GS:ffff88808d251000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4a1afaf000 CR3: 00000000438a8000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: step_into+0xc5d/0xf30 fs/namei.c:2008 open_last_lookups fs/namei.c:3843 [inline] path_openat+0x1bc6/0x3830 fs/namei.c:4052 do_filp_open+0x1fa/0x410 fs/namei.c:4082 do_sys_openat2+0x121/0x1c0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_open fs/open.c:1460 [inline] __se_sys_open fs/open.c:1456 [inline] __x64_sys_open+0x11e/0x150 fs/open.c:1456 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5aa2adeed9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 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:00007ffc2e7cf7e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f5aa2b47ac0 RCX: 00007f5aa2adeed9 RDX: 0000000000000000 RSI: 0000000000048500 RDI: 0000200000000a80 RBP: 0000200000001240 R08: 00005555725f14c0 R09: 00005555725f14c0 R10: 00005555725f14c0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2e7cfa38 R14: 431bde82d7b634db R15: 00007f5aa2b2803b Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pick_link+0x4f1/0xe80 fs/namei.c:1949 Code: 4c 89 f7 e8 81 fa ea ff 4d 8b 36 4d 85 f6 0f 84 9b 00 00 00 e8 50 7c 87 ff 49 bf 00 00 00 00 00 fc ff df 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 b9 06 00 00 41 0f b6 2e bf 2f 00 00 00 RSP: 0018:ffffc9000d2477e8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffc9000d247908 RCX: ffff88801a34c880 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff823d3d98 R10: 000000003b9aca00 R11: ffffffff823cb0a0 R12: 1ffff92001a48f8b R13: ffffc9000d247c20 R14: 0000000000000002 R15: dffffc0000000000 FS: 00005555725f0380(0000) GS:ffff88808d251000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ff6c3df070 CR3: 00000000438a8000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 4c 89 f7 mov %r14,%rdi 3: e8 81 fa ea ff call 0xffeafa89 8: 4d 8b 36 mov (%r14),%r14 b: 4d 85 f6 test %r14,%r14 e: 0f 84 9b 00 00 00 je 0xaf 14: e8 50 7c 87 ff call 0xff877c69 19: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15 20: fc ff df 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 b9 06 00 00 jne 0x6f0 37: 41 0f b6 2e movzbl (%r14),%ebp 3b: bf 2f 00 00 00 mov $0x2f,%edi