netlink: 15 bytes leftover after parsing attributes in process `syz-executor4'.
WARNING: CPU: 0 PID: 2060 at arch/x86/kernel/traps.c:780 cond_local_irq_disable arch/x86/kernel/traps.c:85 [inline]
WARNING: CPU: 0 PID: 2060 at arch/x86/kernel/traps.c:780 do_debug+0x4d8/0x6e0 arch/x86/kernel/traps.c:794
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 2060 Comm: syz-executor0 Not tainted 4.15.0-rc2+ #216
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <#DB>
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:53
 panic+0x1e4/0x41c kernel/panic.c:183
 __warn+0x1dc/0x200 kernel/panic.c:547
 report_bug+0x211/0x2d0 lib/bug.c:184
 fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:177
 fixup_bug arch/x86/kernel/traps.c:246 [inline]
 do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:295
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
 invalid_op+0x18/0x20 arch/x86/entry/entry_64.S:930
RIP: 0010:cond_local_irq_disable arch/x86/kernel/traps.c:85 [inline]
RIP: 0010:do_debug+0x4d8/0x6e0 arch/x86/kernel/traps.c:794
RSP: 0018:ffff8801db40fe98 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8801db40ff58 RCX: 0000000000000006
RDX: 1ffff1003b681ffc RSI: 1ffff10038e93d55 RDI: ffffffff85ecb998
RBP: ffff8801db40ff48 R08: ffff8801db40ffe8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000e001
R13: ffff8801c749e200 R14: 1ffff1003b681fd8 R15: 0000000000004000
 debug+0x34/0x70 arch/x86/entry/entry_64.S:1083
RIP: 0010:copy_user_generic_unrolled+0x89/0xc0 arch/x86/lib/copy_user_64.S:66
RSP: 0018:ffff88019066fb70 EFLAGS: 00000202
RAX: ffffed00320cdf9d RBX: 0000000020000000 RCX: 0000000000000007
RDX: 0000000000000000 RSI: 0000000020000000 RDI: ffff88019066fcb0
RBP: ffff88019066fba0 R08: 0000007800000005 R09: ffffed00320cdf9d
R10: 0000000000000007 R11: ffffed00320cdf9c R12: 0000000000000038
R13: ffff88019066fcb0 R14: 00007ffffffff000 R15: 0000000020000038
 </#DB>
 copy_from_user include/linux/uaccess.h:147 [inline]
 vlan_ioctl_handler+0xb2/0x1186 net/8021q/vlan.c:518
 sock_ioctl+0x285/0x440 net/socket.c:1039
 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: 0033:0x452a39
RSP: 002b:00007f16c4e4ac58 EFLAGS: 00000212 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452a39
RDX: 0000000020000000 RSI: 0000000000008982 RDI: 0000000000000017
RBP: 00000000000004ba R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f5210
R13: 00000000ffffffff R14: 00007f16c4e4b6d4 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..