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-1,10.128.0.15' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 52.033792] ------------[ cut here ]------------ [ 52.034543] WARNING: CPU: 0 PID: 3254 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 52.035755] Kernel panic - not syncing: panic_on_warn set ... [ 52.035755] [ 52.036752] CPU: 0 PID: 3254 Comm: syzkaller871086 Not tainted 4.9.56-ged0b958 #65 [ 52.037758] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.039008] ffff8801cf63f1f0 ffffffff81d93999 ffffffff83a46b40 ffff8801cf63f2c8 [ 52.040203] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801cf63f2b8 [ 52.041365] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 52.042571] Call Trace: [ 52.042938] [] dump_stack+0xc1/0x128 [ 52.043648] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 52.044575] [] panic+0x1bc/0x3a8 [ 52.045253] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 52.046346] [] ? load_image_and_restore+0xf9/0xf9 [ 52.047214] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 52.048125] [] __warn+0x1c4/0x1e0 [ 52.048801] [] warn_slowpath_null+0x2c/0x40 [ 52.049589] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 52.050466] [] ? trace_hardirqs_on+0xd/0x10 [ 52.051268] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 52.052129] [] ? dst_release+0x71/0xd0 [ 52.052861] [] ? ip6_pol_route+0xb30/0x1c90 [ 52.053646] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 52.055753] [] ? get_page_from_freelist+0xd19/0x1a00 [ 52.062469] [] ? fib6_get_table+0x1c0/0x340 [ 52.068410] [] ? __might_sleep+0x95/0x1a0 [ 52.074172] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 52.080632] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 52.087089] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 52.093894] [] ? _raw_read_unlock_bh+0x30/0x40 [ 52.100097] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 52.107074] [] kmalloc_order+0x2a/0x70 [ 52.112572] [] kmalloc_order_trace+0x1f/0x190 [ 52.118680] [] __kmalloc+0x19d/0x310 [ 52.124008] [] ip6_setup_cork+0x194/0x1200 [ 52.129856] [] ? xfrm_lookup+0x400/0xbf0 [ 52.135529] [] ip6_make_skb+0x1b8/0x440 [ 52.141115] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 52.147571] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 52.154027] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 52.160135] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 52.166677] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 52.173657] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 52.180633] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 52.186750] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 52.192769] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 52.198878] [] udpv6_sendmsg+0x1b1d/0x2540 [ 52.204728] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 52.210835] [] ? udp_v6_rehash+0xa0/0xa0 [ 52.216509] [] ? udp_seq_next+0x80/0x80 [ 52.222096] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 52.229071] [] ? sock_has_perm+0x1c2/0x3e0 [ 52.234921] [] ? ip6_datagram_release_cb+0x87/0x470 [ 52.241550] [] ? release_sock+0x20/0x1c0 [ 52.247223] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 52.253937] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 52.260131] [] ? release_sock+0x14c/0x1c0 [ 52.265893] [] inet_sendmsg+0x2bc/0x4c0 [ 52.271478] [] ? inet_sendmsg+0x73/0x4c0 [ 52.277153] [] ? inet_recvmsg+0x4c0/0x4c0 [ 52.282913] [] sock_sendmsg+0xca/0x110 [ 52.288415] [] SYSC_sendto+0x2c8/0x340 [ 52.293915] [] ? SYSC_connect+0x310/0x310 [ 52.299676] [] ? __pmd_alloc+0x410/0x410 [ 52.305352] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 52.312416] [] ? __do_page_fault+0x61a/0xd70 [ 52.318437] [] ? __do_page_fault+0x3c6/0xd70 [ 52.324459] [] ? SyS_setsockopt+0x17f/0x250 [ 52.330393] [] ? mm_fault_error+0x2c0/0x2c0 [ 52.336327] [] SyS_sendto+0x40/0x50 [ 52.341566] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 52.348146] Dumping ftrace buffer: [ 52.351650] (ftrace buffer empty) [ 52.355325] Kernel Offset: disabled [ 52.358992] Rebooting in 86400 seconds..