sg_write: data in/out 1505792696/163 bytes for SCSI command 0xdb-- guessing data in;
   program syzkaller226294 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 access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 3323 Comm: syzkaller226294 Not tainted 4.9.75-g06fe41f #16
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801ca96e000 task.stack: ffff8801bfb70000
RIP: 0010:[<ffffffff8266880c>]  [<ffffffff8266880c>] sg_read_oxfer drivers/scsi/sg.c:1976 [inline]
RIP: 0010:[<ffffffff8266880c>]  [<ffffffff8266880c>] sg_read+0xd0c/0x1440 drivers/scsi/sg.c:520
RSP: 0018:ffff8801bfb77a50  EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff826687d3
RDX: 0000000000000000 RSI: 0000000000000081 RDI: ffff8801c9282270
RBP: ffff8801bfb77b58 R08: 0000000000000000 R09: ffffed00391434e9
R10: 0000000000000005 R11: ffffed00391434e8 R12: 0000000000001000
R13: 0000000000000000 R14: ffff8801c8a1a720 R15: ffff8801c9282240
FS:  0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000009a0b840
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000204bb000 CR3: 00000001c967a000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801d1c84580 ffff8801bfb77a80 ffff8801c9282258 ffff880100000081
 0000000000000000 ffff8801c9282268 00000000000000a5 0000000000000246
 ffff8801d161e500 1ffff10037f6ef56 00000000203d4000 00000000203d4024
Call Trace:
 [<ffffffff8156b481>] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714
 [<ffffffff815703a2>] do_loop_readv_writev fs/read_write.c:1105 [inline]
 [<ffffffff815703a2>] compat_do_readv_writev+0x522/0x760 fs/read_write.c:1099
 [<ffffffff815706c3>] compat_readv+0xe3/0x150 fs/read_write.c:1128
 [<ffffffff81570824>] do_compat_readv+0xf4/0x1d0 fs/read_write.c:1148
 [<ffffffff81572d96>] C_SYSC_readv fs/read_write.c:1160 [inline]
 [<ffffffff81572d96>] compat_SyS_readv+0x26/0x30 fs/read_write.c:1156
 [<ffffffff81006fc7>] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline]
 [<ffffffff81006fc7>] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384
 [<ffffffff838b2334>] entry_SYSENTER_compat+0x74/0x83 arch/x86/entry/entry_64_compat.S:127
Code: 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 8a 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 df 05 00 00 48 8b 1b 48 85 db 0f 84 51 03 00 
RIP  [<ffffffff8266880c>] sg_read_oxfer drivers/scsi/sg.c:1976 [inline]
RIP  [<ffffffff8266880c>] sg_read+0xd0c/0x1440 drivers/scsi/sg.c:520
 RSP <ffff8801bfb77a50>
---[ end trace 4d51be33f89b82af ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..