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-3,10.128.0.61' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 63.613256] ------------[ cut here ]------------ [ 63.613985] WARNING: CPU: 1 PID: 3260 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 63.615202] Kernel panic - not syncing: panic_on_warn set ... [ 63.615202] [ 63.616201] CPU: 1 PID: 3260 Comm: syzkaller243566 Not tainted 4.9.56-ged0b958 #65 [ 63.617219] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.618435] ffff8801d0f9f1f0 ffffffff81d93999 ffffffff83a46b40 ffff8801d0f9f2c8 [ 63.619574] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801d0f9f2b8 [ 63.620755] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 63.621895] Call Trace: [ 63.622260] [] dump_stack+0xc1/0x128 [ 63.622969] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 63.623896] [] panic+0x1bc/0x3a8 [ 63.624576] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 63.625650] [] ? load_image_and_restore+0xf9/0xf9 [ 63.626504] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 63.627486] [] __warn+0x1c4/0x1e0 [ 63.628172] [] warn_slowpath_null+0x2c/0x40 [ 63.628967] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 63.629845] [] ? trace_hardirqs_on+0xd/0x10 [ 63.630629] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 63.631484] [] ? dst_release+0x71/0xd0 [ 63.632215] [] ? ip6_pol_route+0xb30/0x1c90 [ 63.633002] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 63.637303] [] ? get_page_from_freelist+0xd19/0x1a00 [ 63.644022] [] ? fib6_get_table+0x1c0/0x340 [ 63.649958] [] ? __might_sleep+0x95/0x1a0 [ 63.655718] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 63.662172] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 63.668628] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 63.675523] [] ? _raw_read_unlock_bh+0x30/0x40 [ 63.681717] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 63.688694] [] kmalloc_order+0x2a/0x70 [ 63.694193] [] kmalloc_order_trace+0x1f/0x190 [ 63.700304] [] __kmalloc+0x19d/0x310 [ 63.705633] [] ip6_setup_cork+0x194/0x1200 [ 63.711480] [] ? xfrm_lookup+0x400/0xbf0 [ 63.717151] [] ip6_make_skb+0x1b8/0x440 [ 63.722738] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 63.729191] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 63.735645] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 63.741757] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 63.748475] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 63.755450] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 63.762424] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 63.768533] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 63.774552] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 63.780659] [] udpv6_sendmsg+0x1b1d/0x2540 [ 63.786507] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 63.792613] [] ? udp_v6_rehash+0xa0/0xa0 [ 63.798287] [] ? udp_seq_next+0x80/0x80 [ 63.803874] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 63.810849] [] ? sock_has_perm+0x1c2/0x3e0 [ 63.816696] [] ? ip6_datagram_release_cb+0x87/0x470 [ 63.823325] [] ? release_sock+0x20/0x1c0 [ 63.828997] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 63.836187] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 63.842386] [] ? release_sock+0x14c/0x1c0 [ 63.848148] [] inet_sendmsg+0x2bc/0x4c0 [ 63.853735] [] ? inet_sendmsg+0x73/0x4c0 [ 63.859410] [] ? inet_recvmsg+0x4c0/0x4c0 [ 63.865256] [] sock_sendmsg+0xca/0x110 [ 63.870757] [] SYSC_sendto+0x2c8/0x340 [ 63.876259] [] ? SYSC_connect+0x310/0x310 [ 63.882023] [] ? __pmd_alloc+0x410/0x410 [ 63.887872] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 63.894939] [] ? __do_page_fault+0x61a/0xd70 [ 63.900960] [] ? __do_page_fault+0x3c6/0xd70 [ 63.906985] [] ? SyS_setsockopt+0x17f/0x250 [ 63.912939] [] ? mm_fault_error+0x2c0/0x2c0 [ 63.918874] [] SyS_sendto+0x40/0x50 [ 63.924117] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 63.930711] Dumping ftrace buffer: [ 63.934214] (ftrace buffer empty) [ 63.937892] Kernel Offset: disabled [ 63.941483] Rebooting in 86400 seconds..