kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
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Modules linked in:
CPU: 0 PID: 12853 Comm: syz-executor2 Not tainted 4.9.77-ge12a9c4 #18
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801cf9fe000 task.stack: ffff8801c2c50000
RIP: 0010:[<ffffffff82669a0c>]  [<ffffffff82669a0c>] sg_read_oxfer drivers/scsi/sg.c:1976 [inline]
RIP: 0010:[<ffffffff82669a0c>]  [<ffffffff82669a0c>] sg_read+0xd0c/0x1440 drivers/scsi/sg.c:520
RSP: 0018:ffff8801c2c57bc0  EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff826699d3
RDX: 0000000000000000 RSI: ffffc9000229b000 RDI: ffff8801d00d0170
RBP: ffff8801c2c57cd0 R08: 0000000000000000 R09: ffffed003b18bab9
R10: 0000000000000005 R11: ffffed003b18bab8 R12: 0000000000001000
R13: 0000000000000000 R14: ffff8801d8c5d5a0 R15: ffff8801d00d0140
FS:  00007f51c2633700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020b7b000 CR3: 00000001d1538000 CR4: 0000000000160670
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 0000000000000ece ffff8801cf55fa00 ffff8801d00d0158 ffff88010000ff6c
 1ffff1003858af89 ffff8801d00d0168 000000000000ff90 00000000ffffffff
 ffff8801d15d2500 1ffff1003858af84 0000000020b07000 0000000020b07024
Call Trace:
 [<ffffffff8156b9e3>] __vfs_read+0x103/0x670 fs/read_write.c:452
 [<ffffffff8156f77e>] vfs_read+0x11e/0x380 fs/read_write.c:475
 [<ffffffff815734a9>] SYSC_read fs/read_write.c:591 [inline]
 [<ffffffff815734a9>] SyS_read+0xd9/0x1b0 fs/read_write.c:584
 [<ffffffff838b2c2e>] entry_SYSCALL_64_fastpath+0x29/0xe8
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  [<ffffffff82669a0c>] sg_read_oxfer drivers/scsi/sg.c:1976 [inline]
RIP  [<ffffffff82669a0c>] sg_read+0xd0c/0x1440 drivers/scsi/sg.c:520
 RSP <ffff8801c2c57bc0>
---[ end trace 5405cb8979540afa ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
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Kernel Offset: disabled
Rebooting in 86400 seconds..