netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'.
divide error: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 9800 Comm: syz-executor.1 Not tainted 4.14.218-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
audit: type=1804 audit(1613267241.650:10): pid=9791 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir214279755/syzkaller.QSZzXc/8/cgroup.controllers" dev="sda1" ino=15807 res=1
task: ffff888099504000 task.stack: ffff8880567d8000
RIP: 0010:netem_enqueue+0x1364/0x2df0 syzkaller/managers/linux-4-14/kernel/net/sched/sch_netem.c:511
RSP: 0018:ffff8880567df7e0 EFLAGS: 00010246
RAX: 00000000352b7a28 RBX: ffff8880982cb0c0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8880b35c6680 RDI: ffff8880b35c6704
RBP: 0000000000000040 R08: ffff8880b35c6758 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffff88809a2c3460 R14: 0000000000000000 R15: ffff88809a2c3240
FS:  00007f1b56b32700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1b56b32718 CR3: 0000000095a22000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __dev_xmit_skb syzkaller/managers/linux-4-14/kernel/net/core/dev.c:3225 [inline]
 __dev_queue_xmit+0x121d/0x2480 syzkaller/managers/linux-4-14/kernel/net/core/dev.c:3489
 __netlink_deliver_tap_skb syzkaller/managers/linux-4-14/kernel/net/netlink/af_netlink.c:273 [inline]
 __netlink_deliver_tap syzkaller/managers/linux-4-14/kernel/net/netlink/af_netlink.c:291 [inline]
 netlink_deliver_tap+0x60c/0x7d0 syzkaller/managers/linux-4-14/kernel/net/netlink/af_netlink.c:302
 netlink_deliver_tap_kernel syzkaller/managers/linux-4-14/kernel/net/netlink/af_netlink.c:311 [inline]
 netlink_unicast_kernel syzkaller/managers/linux-4-14/kernel/net/netlink/af_netlink.c:1286 [inline]
 netlink_unicast+0x485/0x610 syzkaller/managers/linux-4-14/kernel/net/netlink/af_netlink.c:1313
 netlink_sendmsg+0x62e/0xb80 syzkaller/managers/linux-4-14/kernel/net/netlink/af_netlink.c:1878
 sock_sendmsg_nosec syzkaller/managers/linux-4-14/kernel/net/socket.c:646 [inline]
 sock_sendmsg+0xb5/0x100 syzkaller/managers/linux-4-14/kernel/net/socket.c:656
 ___sys_sendmsg+0x6c8/0x800 syzkaller/managers/linux-4-14/kernel/net/socket.c:2062
 __sys_sendmsg+0xa3/0x120 syzkaller/managers/linux-4-14/kernel/net/socket.c:2096
 SYSC_sendmsg syzkaller/managers/linux-4-14/kernel/net/socket.c:2107 [inline]
 SyS_sendmsg+0x27/0x40 syzkaller/managers/linux-4-14/kernel/net/socket.c:2103
 do_syscall_64+0x1d5/0x640 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x465d99
RSP: 002b:00007f1b56b32188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 0000000000465d99
RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000006
RBP: 00000000004bcf27 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008
R13: 00007ffd2abe996f R14: 00007f1b56b32300 R15: 0000000000022000
Code: 4c 89 44 24 20 89 4c 24 18 89 44 24 10 e8 e5 ae a5 fb 4c 8b 44 24 20 8b 4c 24 18 8b 44 24 10 48 8b 34 24 31 d2 2b 8e 84 00 00 00 <f7> f1 48 b8 00 00 00 00 00 fc ff df 48 01 d3 48 89 d9 48 c1 e9 
RIP: netem_enqueue+0x1364/0x2df0 syzkaller/managers/linux-4-14/kernel/net/sched/sch_netem.c:511 RSP: ffff8880567df7e0
---[ end trace 8c84d4d3e0e73270 ]---