BUG: unable to handle kernel paging request at 000000003bd1c106
IP: copy_user_handle_tail+0x31/0x80 arch/x86/lib/usercopy_64.c:69
PGD 5e28067 P4D 5e28067 PUD 5e2a067 PMD 0 
Oops: 0002 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 3340 Comm: syz-executor2 Not tainted 4.15.0-rc1-mm1+ #29
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: 00000000922c7253 task.stack: 000000005d95565e
RIP: 0010:copy_user_handle_tail+0x31/0x80 arch/x86/lib/usercopy_64.c:69
RSP: 0018:ffff880198347810 EFLAGS: 00010246
RAX: 0000000000010000 RBX: 0000000000000000 RCX: ffffffff85155645
RDX: 00000000000000c1 RSI: ffffc9000203f000 RDI: ffff8801c494c532
RBP: ffff880198347838 R08: ffffed00389298b1 R09: ffffed00389298b1
R10: 000000000000000b R11: ffffed00389298b0 R12: 0000000000000056
R13: ffff8801c494c532 R14: 0000000020001002 R15: 0000000020001000
FS:  00007fc6cb05a700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff8 CR3: 00000001c4b0f000 CR4: 00000000001426f0
DR0: 0000000020001000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff1 DR7: 00000000000b0602
Call Trace:
 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
 raw_copy_from_user arch/x86/include/asm/uaccess_64.h:102 [inline]
 __copy_from_user include/linux/uaccess.h:75 [inline]
 sg_new_write.isra.19+0x1c3/0x830 drivers/scsi/sg.c:706
 sg_ioctl+0x1bed/0x2da0 drivers/scsi/sg.c:890
 vfs_ioctl fs/ioctl.c:46 [inline]
 do_vfs_ioctl+0x1b1/0x1530 fs/ioctl.c:686
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x4529d9
RSP: 002b:00007fc6cb059c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000007580d8 RCX: 00000000004529d9
RDX: 0000000020000fff RSI: 0008000000002285 RDI: 000000000000001c
RBP: 000000000000053a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4e10
R13: 00000000ffffffff R14: 00007fc6cb05a6d4 R15: 0000000000000002
Code: 41 56 41 55 41 54 41 89 d4 53 49 89 fd 49 89 f7 e8 75 e5 5a fc 45 85 e4 74 3d e8 6b e5 5a fc 0f 1f 00 31 db 4d 8d 77 01 45 8a 3f <0f> 1f 00 85 db 75 2a e8 53 e5 5a fc 0f 1f 00 45 88 7d 00 0f 1f 
RIP: copy_user_handle_tail+0x31/0x80 arch/x86/lib/usercopy_64.c:69 RSP: ffff880198347810
CR2: fffffffffffffff8
---[ end trace 964ebfb1ae0c5caf ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..