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: 9686 Comm: syz-executor2 Not tainted 4.9.81-ga25ea24 #36
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d50ab000 task.stack: ffff8801af998000
RIP: 0010:[<ffffffff826683eb>]  [<ffffffff826683eb>] sg_remove_scat.isra.19+0x17b/0x2d0 drivers/scsi/sg.c:1939
RSP: 0018:ffff8801af99f9c0  EFLAGS: 00010202
RAX: 1ffff1003b16d44d RBX: ffff8801d8b6a258 RCX: 0000000000000001
RDX: 0000000000000008 RSI: ffffc9000239e000 RDI: ffff8801cfc9d9f4
RBP: ffff8801af99fa10 R08: 0000000000000000 R09: ffffed00372a813d
R10: 0000000000000005 R11: ffffed00372a813c R12: 0000000000000001
R13: 0000000000000008 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f54fd4c9700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd7e90d2db8 CR3: 00000001ba7fa000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801d8b6a270 ffffed003b16d44b ffffed003b16d44e ffff8801d8b6a268
 ffff8801cfc9d9d8 ffff8801d8b6a240 0000000000000000 0000000000000000
 0000000000000000 ffff8801d8b6a338 ffff8801af99fa50 ffffffff826687f5
Call Trace:
 [<ffffffff826687f5>] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1825
 [<ffffffff8266a686>] sg_read+0xa16/0x1440 drivers/scsi/sg.c:526
 [<ffffffff8156cd01>] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714
 [<ffffffff81570b70>] do_loop_readv_writev fs/read_write.c:880 [inline]
 [<ffffffff81570b70>] do_readv_writev+0x520/0x750 fs/read_write.c:874
 [<ffffffff81570e24>] vfs_readv+0x84/0xc0 fs/read_write.c:898
 [<ffffffff81570f46>] do_readv+0xe6/0x250 fs/read_write.c:924
 [<ffffffff81574437>] SYSC_readv fs/read_write.c:1011 [inline]
 [<ffffffff81574437>] SyS_readv+0x27/0x30 fs/read_write.c:1008
 [<ffffffff81006505>] do_syscall_64+0x1a5/0x490 arch/x86/entry/common.c:282
 [<ffffffff838b3e7d>] entry_SYSCALL_64_after_swapgs+0x47/0xc5
Code: 45 b8 eb 3e e8 b7 2f d0 fe 48 8b 45 c8 48 c1 e8 03 42 80 3c 38 00 0f 85 3a 01 00 00 4c 8b 73 10 4b 8d 14 2e 48 89 d1 48 c1 e9 03 <42> 80 3c 39 00 0f 85 0b 01 00 00 48 8b 12 49 83 c5 08 48 85 d2 
RIP  [<ffffffff826683eb>] sg_remove_scat.isra.19+0x17b/0x2d0 drivers/scsi/sg.c:1939
 RSP <ffff8801af99f9c0>
---[ end trace 1bb6d6099d5fe856 ]---
device lo entered promiscuous mode
device lo left promiscuous mode
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..