audit: type=1400 audit(1575297807.603:5): avc:  denied  { associate } for  pid=2224 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: 6898 at kernel/signal.c:349 task_participate_group_stop+0x226/0x2d0 kernel/signal.c:349
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 6898 Comm: 3 Not tainted 4.9.205-syzkaller #0
 ffff8801d7f77a08 ffffffff81b55e6b 0000000000000000 ffffffff82a3b700
 00000000ffffffff 0000000000000000 0000000000000009 ffff8801d7f77ae8
 ffffffff813ff051 0000000041b58ab3 ffffffff82e316eb ffffffff813fee71
Call Trace:
 [<00000000460ad2e1>] __dump_stack lib/dump_stack.c:15 [inline]
 [<00000000460ad2e1>] dump_stack+0xcb/0x130 lib/dump_stack.c:56
 [<00000000baaa18cf>] panic+0x1e0/0x3c4 kernel/panic.c:181
 [<00000000ed579d5b>] __warn.cold+0x2f/0x2f kernel/panic.c:547
 [<000000009f2139e3>] warn_slowpath_null+0x2d/0x40 kernel/panic.c:590
 [<000000007cfc9117>] task_participate_group_stop+0x226/0x2d0 kernel/signal.c:349
 [<00000000d9d08774>] do_signal_stop+0x3a9/0x810 kernel/signal.c:2087
 [<00000000bf873ad5>] get_signal+0xadc/0x1cb0 kernel/signal.c:2274
 [<00000000534867ae>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812
 [<00000000b95da516>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159
 [<000000004ccb13f1>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
 [<000000004ccb13f1>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline]
 [<000000004ccb13f1>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293
 [<00000000bfcbb425>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Kernel Offset: disabled
Rebooting in 86400 seconds..