INIT: Entering runlevel: 2 [[36minfo[39;49m] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-android-49-kasan-gce-5,10.128.0.14' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 44.636550] ------------[ cut here ]------------ [ 44.637252] WARNING: CPU: 0 PID: 3247 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 44.638435] Kernel panic - not syncing: panic_on_warn set ... [ 44.638435] [ 44.639402] CPU: 0 PID: 3247 Comm: syzkaller220009 Not tainted 4.9.56-ged0b958 #65 [ 44.640434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.641654] ffff8801c87371f0 ffffffff81d93999 ffffffff83a46b40 ffff8801c87372c8 [ 44.642777] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801c87372b8 [ 44.643913] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 44.645071] Call Trace: [ 44.645427] [] dump_stack+0xc1/0x128 [ 44.646135] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 44.647031] [] panic+0x1bc/0x3a8 [ 44.647694] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 44.648794] [] ? load_image_and_restore+0xf9/0xf9 [ 44.649683] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 44.650581] [] __warn+0x1c4/0x1e0 [ 44.651256] [] warn_slowpath_null+0x2c/0x40 [ 44.652040] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 44.652926] [] ? trace_hardirqs_on+0xd/0x10 [ 44.653735] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 44.654566] [] ? dst_release+0x71/0xd0 [ 44.655296] [] ? ip6_pol_route+0xb30/0x1c90 [ 44.656092] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 44.656964] [] ? get_page_from_freelist+0xd19/0x1a00 [ 44.663679] [] ? fib6_get_table+0x1c0/0x340 [ 44.669614] [] ? __might_sleep+0x95/0x1a0 [ 44.675372] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 44.681828] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 44.688285] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 44.695089] [] ? _raw_read_unlock_bh+0x30/0x40 [ 44.701287] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 44.708264] [] kmalloc_order+0x2a/0x70 [ 44.713765] [] kmalloc_order_trace+0x1f/0x190 [ 44.719872] [] __kmalloc+0x19d/0x310 [ 44.725197] [] ip6_setup_cork+0x194/0x1200 [ 44.731046] [] ? xfrm_lookup+0x400/0xbf0 [ 44.736723] [] ip6_make_skb+0x1b8/0x440 [ 44.742312] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 44.748764] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 44.755219] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 44.761328] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 44.767869] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 44.774844] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 44.781820] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 44.787932] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 44.793957] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 44.800068] [] udpv6_sendmsg+0x1b1d/0x2540 [ 44.805918] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 44.812024] [] ? udp_v6_rehash+0xa0/0xa0 [ 44.817699] [] ? udp_seq_next+0x80/0x80 [ 44.823287] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 44.830265] [] ? sock_has_perm+0x1c2/0x3e0 [ 44.836112] [] ? ip6_datagram_release_cb+0x87/0x470 [ 44.842741] [] ? release_sock+0x20/0x1c0 [ 44.848416] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 44.855138] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 44.861333] [] ? release_sock+0x14c/0x1c0 [ 44.867092] [] inet_sendmsg+0x2bc/0x4c0 [ 44.872683] [] ? inet_sendmsg+0x73/0x4c0 [ 44.878369] [] ? inet_recvmsg+0x4c0/0x4c0 [ 44.884140] [] sock_sendmsg+0xca/0x110 [ 44.889642] [] SYSC_sendto+0x2c8/0x340 [ 44.895141] [] ? SYSC_connect+0x310/0x310 [ 44.900902] [] ? __pmd_alloc+0x410/0x410 [ 44.906576] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 44.913639] [] ? __do_page_fault+0x61a/0xd70 [ 44.919658] [] ? __do_page_fault+0x3c6/0xd70 [ 44.925678] [] ? SyS_setsockopt+0x17f/0x250 [ 44.931611] [] ? mm_fault_error+0x2c0/0x2c0 [ 44.937545] [] SyS_sendto+0x40/0x50 [ 44.942787] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 44.949366] Dumping ftrace buffer: [ 44.952871] (ftrace buffer empty) [ 44.956548] Kernel Offset: disabled [ 44.960139] Rebooting in 86400 seconds..