------------[ cut here ]------------
unexpected usercopy with bad or missing whitelist from pool_workqueue offset 76 size 4
WARNING: CPU: 1 PID: 24597 at mm/slab.c:4432 __check_heap_object+0xc7/0xd0 mm/slab.c:4431
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 24597 Comm: syz-executor6 Not tainted 4.15.0-rc3-next-20171214+ #67
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xe9/0x14b lib/dump_stack.c:53
 panic+0x10e/0x2f8 kernel/panic.c:183
 __warn+0x14e/0x150 kernel/panic.c:547
 report_bug+0x11e/0x1a0 lib/bug.c:184
 fixup_bug.part.11+0x17/0x30 arch/x86/kernel/traps.c:177
 fixup_bug arch/x86/kernel/traps.c:246 [inline]
 do_error_trap+0x14a/0x180 arch/x86/kernel/traps.c:295
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
 invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:1079
RIP: 0010:__check_heap_object+0xc7/0xd0 mm/slab.c:4431
RSP: 0018:ffffc9000106fba8 EFLAGS: 00010292
RAX: 0000000000000056 RBX: ffffea000855b000 RCX: ffffffff8123dede
RDX: 00000000000029f7 RSI: ffffc9000537b000 RDI: 0000000000000212
RBP: ffffc9000106fbb0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc9000106fb30 R11: 0000000000000000 R12: ffff8802156c074c
R13: 0000000000000004 R14: 0000000000000001 R15: ffffea000855b000
 check_heap_object mm/usercopy.c:222 [inline]
 __check_object_size+0xdd/0x250 mm/usercopy.c:248
 check_object_size include/linux/thread_info.h:112 [inline]
 check_copy_size include/linux/thread_info.h:143 [inline]
 copy_to_user include/linux/uaccess.h:154 [inline]
 put_cmsg+0xc9/0x180 net/core/scm.c:242
 netlink_cmsg_listen_all_nsid net/netlink/af_netlink.c:1820 [inline]
 netlink_recvmsg+0x39c/0x4b0 net/netlink/af_netlink.c:1969
 sock_recvmsg_nosec net/socket.c:809 [inline]
 sock_recvmsg+0x4d/0x70 net/socket.c:816
 ___sys_recvmsg+0x118/0x2b0 net/socket.c:2185
 __sys_recvmsg+0x4d/0x90 net/socket.c:2230
 SYSC_recvmsg net/socket.c:2242 [inline]
 SyS_recvmsg+0x2d/0x50 net/socket.c:2237
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x452a09
RSP: 002b:00007fddb27b8c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000452a09
RDX: 0000000000000040 RSI: 00000000203fc000 RDI: 0000000000000013
RBP: 0000000000000024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006ed400
R13: 00000000ffffffff R14: 00007fddb27b96d4 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..