IPVS: Creating netns size=2536 id=1 audit: type=1400 audit(1514724900.891:6): avc: denied { sys_chroot } for pid=3354 comm="syz-executor0" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3354 at kernel/signal.c:334 task_participate_group_stop+0x224/0x2d0 kernel/signal.c:334 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 3354 Comm: syz-executor0 Not tainted 4.9.73-gf3f3457 #11 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801cb62fa98 ffffffff81d922b9 ffffffff83a46d00 ffff8801cb62fb70 ffffffff83a4d800 ffffffff8115a9c4 0000000000000009 ffff8801cb62fb60 ffffffff8142d741 0000000041b58ab3 ffffffff84189000 ffffffff8142d585 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] panic+0x1bc/0x3a8 kernel/panic.c:179 [] __warn+0x1c4/0x1e0 kernel/panic.c:542 [] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585 [] task_participate_group_stop+0x224/0x2d0 kernel/signal.c:334 [] do_signal_stop+0x19b/0x7b0 kernel/signal.c:2022 [] get_signal+0x430/0x14e0 kernel/signal.c:2278 [] do_signal+0x87/0x1a00 arch/x86/kernel/signal.c:807 [] exit_to_usermode_loop+0xe1/0x120 arch/x86/entry/common.c:156 [] prepare_exit_to_usermode arch/x86/entry/common.c:190 [inline] [] syscall_return_slowpath arch/x86/entry/common.c:259 [inline] [] do_syscall_32_irqs_on arch/x86/entry/common.c:328 [inline] [] do_fast_syscall_32+0x5de/0x890 arch/x86/entry/common.c:384 [] entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124 Shutting down cpus with NMI Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..