audit: type=1400 audit(1568477730.221:5): avc:  denied  { associate } for  pid=2070 comm="syz-executor.0" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1
------------[ cut here ]------------
WARNING: CPU: 0 PID: 2239 at net/ipv4/tcp.c:2193 tcp_close+0xd1e/0x10b0 net/ipv4/tcp.c:2193
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 2239 Comm: syz-executor.0 Not tainted 4.9.192+ #0
 ffff8801cb207b90 ffffffff81b67081 0000000000000000 ffffffff82a3b340
 00000000ffffffff 0000000000000000 0000000000000009 ffff8801cb207c70
 ffffffff813fefda 0000000041b58ab3 ffffffff82e32ec5 ffffffff813fee01
Call Trace:
 [<000000008b6dc5d4>] __dump_stack lib/dump_stack.c:15 [inline]
 [<000000008b6dc5d4>] dump_stack+0xc1/0x120 lib/dump_stack.c:51
 [<000000000a8a4d97>] panic+0x1d9/0x3bd kernel/panic.c:180
 [<000000007646c4a5>] __warn.cold+0x2f/0x2f kernel/panic.c:546
 [<0000000065c04dbd>] warn_slowpath_null+0x2d/0x40 kernel/panic.c:589
 [<00000000da4f1a18>] tcp_close+0xd1e/0x10b0 net/ipv4/tcp.c:2193
 [<0000000088c61fa8>] inet_release+0xf2/0x1c0 net/ipv4/af_inet.c:430
 [<000000002f6d2d13>] inet6_release+0x53/0x80 net/ipv6/af_inet6.c:455
 [<0000000010383619>] __sock_release+0xd3/0x2c0 net/socket.c:605
 [<000000007c97882d>] sock_close+0x1b/0x30 net/socket.c:1060
 [<00000000cfc734c3>] __fput+0x274/0x720 fs/file_table.c:208
 [<00000000709f4c98>] ____fput+0x16/0x20 fs/file_table.c:244
 [<000000000546d0c0>] task_work_run+0x108/0x180 kernel/task_work.c:116
 [<000000005efd33dc>] tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 [<000000005efd33dc>] exit_to_usermode_loop+0x13b/0x160 arch/x86/entry/common.c:163
 [<000000007fc2b08d>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
 [<000000007fc2b08d>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline]
 [<000000007fc2b08d>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293
 [<00000000ca7c1df1>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Kernel Offset: disabled
Rebooting in 86400 seconds..