Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
CPU: 0 UID: 0 PID: 22754 Comm: syz.2.4877 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_transmit_link+0x32/0x740
Code: 56 41 55 41 54 53 48 83 ec 18 48 89 f5 49 89 fc 49 be 00 00 00 00 00 fc ff df e8 f9 cc 52 f7 4c 8d 7d 32 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 6e 05 00 00 41 0f b6 1f 31 ff 89 de e8
RSP: 0018:ffffc9000ae57770 EFLAGS: 00010206
RAX: 0000000000000006 RBX: 0000000000000000 RCX: ffff88811f5d3980
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88802be15500
RBP: 0000000000000000 R08: ffff88811f5d3980 R09: 0000000000000008
R10: 000000000000000f R11: 0000000000000000 R12: ffff88802be15500
R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000032
FS:  00007f471888f6c0(0000) GS:ffff8880b8618000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff3ab2e56c0 CR3: 00000001115ae000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 rose_write_internal+0x11dc/0x1ac0
 rose_release+0x24e/0x520
 sock_close+0xc3/0x240
 __fput+0x44c/0xa70
 task_work_run+0x1d4/0x260
 do_exit+0x6b5/0x2300
 do_group_exit+0x21c/0x2d0
 get_signal+0x1286/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 exit_to_user_mode_loop+0x75/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f471798ebe9
Code: Unable to access opcode bytes at 0x7f471798ebbf.
RSP: 002b:00007f471888f038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: 0000000000000024 RBX: 00007f4717bb5fa0 RCX: 00007f471798ebe9
RDX: 00000000000000c4 RSI: 0000200000000000 RDI: 000000000000000a
RBP: 00007f4717a11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4717bb6038 R14: 00007f4717bb5fa0 R15: 00007ffd7428d038
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:rose_transmit_link+0x32/0x740
Code: 56 41 55 41 54 53 48 83 ec 18 48 89 f5 49 89 fc 49 be 00 00 00 00 00 fc ff df e8 f9 cc 52 f7 4c 8d 7d 32 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 6e 05 00 00 41 0f b6 1f 31 ff 89 de e8
RSP: 0018:ffffc9000ae57770 EFLAGS: 00010206
RAX: 0000000000000006 RBX: 0000000000000000 RCX: ffff88811f5d3980
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88802be15500
RBP: 0000000000000000 R08: ffff88811f5d3980 R09: 0000000000000008
R10: 000000000000000f R11: 0000000000000000 R12: ffff88802be15500
R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000032
FS:  00007f471888f6c0(0000) GS:ffff8881a3c18000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2bf20a6440 CR3: 00000001084f8000 CR4: 00000000000006f0
