Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 0 UID: 0 PID: 8461 Comm: syz.3.652 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:rose_rt_ioctl+0x162/0x1250
Code: 3f 31 ff 44 89 fe e8 8d 11 53 f7 45 85 ff 74 0a e8 83 0e 53 f7 e9 76 02 00 00 48 8b 44 24 28 48 8d 50 10 49 89 d7 49 c1 ef 03 <43> 0f b6 04 2f 84 c0 48 89 54 24 20 0f 85 87 02 00 00 44 0f b6 22
RSP: 0018:ffffc900078a7ae0 EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffff888027f0e000 RCX: 0000000000000000
RDX: 0000000000000010 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900078a7c10 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000f14f4c R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff8881115a6580 R15: 0000000000000002
FS:  00007f73e2a046c0(0000) GS:ffff8880b861b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f73e29c1fc8 CR3: 0000000027918000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 rose_ioctl+0x3ce/0x8b0
 sock_do_ioctl+0xdc/0x300
 sock_ioctl+0x576/0x790
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f73e1b8ebe9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f73e2a04038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f73e1db5fa0 RCX: 00007f73e1b8ebe9
RDX: 0000000000000000 RSI: 00000000000089e4 RDI: 0000000000000009
RBP: 00007f73e1c11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f73e1db6038 R14: 00007f73e1db5fa0 R15: 00007fff9c44a948
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:rose_rt_ioctl+0x162/0x1250
Code: 3f 31 ff 44 89 fe e8 8d 11 53 f7 45 85 ff 74 0a e8 83 0e 53 f7 e9 76 02 00 00 48 8b 44 24 28 48 8d 50 10 49 89 d7 49 c1 ef 03 <43> 0f b6 04 2f 84 c0 48 89 54 24 20 0f 85 87 02 00 00 44 0f b6 22
RSP: 0018:ffffc900078a7ae0 EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffff888027f0e000 RCX: 0000000000000000
RDX: 0000000000000010 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900078a7c10 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000f14f4c R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff8881115a6580 R15: 0000000000000002
FS:  00007f73e2a046c0(0000) GS:ffff8880b861b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f73e29c1fc8 CR3: 0000000027918000 CR4: 00000000000006f0
