kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 6836 Comm: syz-executor3 Not tainted 4.9.80-g8a174b47 #31
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d4eac800 task.stack: ffff8801c6008000
RIP: 0010:[<ffffffff8266ee02>]  [<ffffffff8266ee02>] sg_start_req drivers/scsi/sg.c:1680 [inline]
RIP: 0010:[<ffffffff8266ee02>]  [<ffffffff8266ee02>] sg_common_write.isra.23+0x382/0x18c0 drivers/scsi/sg.c:776
RSP: 0018:ffff8801c600f908  EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8266eb1a
RDX: 0000000000000002 RSI: ffff8801d4b9439c RDI: ffff8801d4b9439a
RBP: ffff8801c600faa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: ffffed0038c01f6d R12: 1ffff10038c01f2f
R13: ffff8801d4b94200 R14: ffff8801c600fb68 R15: ffff8801d4b94358
FS:  00007f331d7d9700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7fae1e4db8 CR3: 00000001bd1cc000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801d4eac800 ffff8801d4b943e0 ffff880100000036 0000000000000010
 ffff8801d4b9439c ffff8801d4ea0000 ffff880100001770 0000000000000036
 ffffffff838a9c43 ffff8801d4b94200 ffff8801d4eac800 ffff8801fffffffe
Call Trace:
 [<ffffffff82673d38>] sg_write+0x6b8/0xb30 drivers/scsi/sg.c:679
 [<ffffffff8156e563>] __vfs_write+0x103/0x680 fs/read_write.c:510
 [<ffffffff81570249>] vfs_write+0x189/0x530 fs/read_write.c:560
 [<ffffffff81573d39>] SYSC_write fs/read_write.c:607 [inline]
 [<ffffffff81573d39>] SyS_write+0xd9/0x1b0 fs/read_write.c:599
 [<ffffffff838b34ee>] entry_SYSCALL_64_fastpath+0x29/0xe8
Code: 42 66 89 85 90 fe ff ff 48 8b 85 c8 fe ff ff 48 83 c0 10 48 89 c2 48 89 85 80 fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 14 15 00 00 48 8b 85 c8 fe ff ff 48 8b 58 10 
RIP  [<ffffffff8266ee02>] sg_start_req drivers/scsi/sg.c:1680 [inline]
RIP  [<ffffffff8266ee02>] sg_common_write.isra.23+0x382/0x18c0 drivers/scsi/sg.c:776
 RSP <ffff8801c600f908>
---[ end trace 7f10ecf922088d46 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..