netlink: 5 bytes leftover after parsing attributes in process `syz-executor6'.
BUG: unable to handle kernel paging request at fffffffffffffff8
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: 1 PID: 3406 Comm: syz-executor2 Not tainted 4.15.0-rc1-next-20171128+ #54
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801c3a92000 task.stack: ffff8801c35f0000
RIP: 0010:copy_user_handle_tail+0x31/0x80 arch/x86/lib/usercopy_64.c:69
RSP: 0018:ffff8801c35f74d0 EFLAGS: 00010246
RAX: 0000000000010000 RBX: 0000000000000000 RCX: ffffffff85153105
RDX: 0000000000000c44 RSI: ffffc90002cf0000 RDI: ffff8801c061ce81
RBP: ffff8801c35f74f8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: ffffed00380c3acf R12: 00000000000007ff
R13: ffff8801c061ce81 R14: 0000000020000002 R15: 0000000020000000
FS:  00007f449d0a3700(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff8 CR3: 00000001c9f27000 CR4: 00000000001426e0
DR0: 0000000020000000 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:55 [inline]
 _copy_from_user+0xc5/0x110 lib/usercopy.c:13
 copy_from_user include/linux/uaccess.h:147 [inline]
 rw_copy_check_uvector+0x81/0x280 fs/read_write.c:760
 import_iovec+0xc8/0x430 lib/iov_iter.c:1398
 sg_start_req drivers/scsi/sg.c:1781 [inline]
 sg_common_write.isra.17+0x1092/0x1cb0 drivers/scsi/sg.c:777
 sg_new_write.isra.19+0x5c3/0x830 drivers/scsi/sg.c:746
 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:00007f449d0a2c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 00000000004529d9
RDX: 0000000020007000 RSI: 0000000000002285 RDI: 000000000000001b
RBP: 0000000000000421 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f33b8
R13: 00000000ffffffff R14: 00007f449d0a36d4 R15: 0000000000000000
Code: 41 56 41 55 41 54 41 89 d4 53 49 89 fd 49 89 f7 e8 85 f9 5a fc 45 85 e4 74 3d e8 7b f9 5a fc 0f 1f 00 31 db 4d 8d 77 01 45 8a 3f <0f> 1f 00 85 db 75 2a e8 63 f9 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: ffff8801c35f74d0
CR2: fffffffffffffff8
---[ end trace eb3a1cfc7d08d382 ]---