sg_write: data in/out 8454115/514 bytes for SCSI command 0x0-- guessing data in;
   program syzkaller598802 not setting count and/or reply_len properly
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 3320 Comm: syzkaller598802 Not tainted 4.4.112-g3fc4284 #32
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d15c2f80 task.stack: ffff8800b3c10000
RIP: 0010:[<ffffffff825bc97d>]  [<ffffffff825bc97d>] sg_read_oxfer drivers/scsi/sg.c:1986 [inline]
RIP: 0010:[<ffffffff825bc97d>]  [<ffffffff825bc97d>] sg_read+0xd1d/0x1490 drivers/scsi/sg.c:531
RSP: 0018:ffff8800b3c17b00  EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff825bc944
RDX: 0000000000000000 RSI: 0000000020f93fef RDI: ffff8800b4d0a270
RBP: ffff8800b3c17c08 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 1ffff10016782f26 R12: 000000000000001a
R13: 0000000000000000 R14: ffff8801d0453a80 R15: ffff8800b4d0a240
FS:  000000000200f880(0063) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020f93fcb CR3: 00000000b08d4000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 0000000000000000 000077ff80000000 ffff8800b3c17b60 ffff8800b4d0a258
 0000000000000008 ffff8800b4d0a268 000000000000003e 0000000000000001
 ffff8800b7c96c80 0000000000001000 1ffff10016782f6c 0000000020f93fef
Call Trace:
 [<ffffffff8151d171>] do_loop_readv_writev+0x141/0x1e0 fs/read_write.c:680
 [<ffffffff8151f4cd>] do_readv_writev+0x5dd/0x6e0 fs/read_write.c:810
 [<ffffffff8151f648>] vfs_readv+0x78/0xb0 fs/read_write.c:834
 [<ffffffff81521999>] SYSC_readv fs/read_write.c:860 [inline]
 [<ffffffff81521999>] SyS_readv+0xd9/0x240 fs/read_write.c:852
 [<ffffffff837761d9>] entry_SYSCALL_64_fastpath+0x16/0x92
Code: 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 97 06 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5f 28 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 6b 06 00 00 48 8b 1b 48 85 db 0f 84 3b 03 00 
RIP  [<ffffffff825bc97d>] sg_read_oxfer drivers/scsi/sg.c:1986 [inline]
RIP  [<ffffffff825bc97d>] sg_read+0xd1d/0x1490 drivers/scsi/sg.c:531
 RSP <ffff8800b3c17b00>
---[ end trace 08b8c0ce5d181d09 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
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Kernel Offset: disabled
Rebooting in 86400 seconds..