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-0,10.128.15.193' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.518373] ------------[ cut here ]------------ [ 34.519098] WARNING: CPU: 0 PID: 3245 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 34.520282] Kernel panic - not syncing: panic_on_warn set ... [ 34.520282] [ 34.521280] CPU: 0 PID: 3245 Comm: syzkaller833502 Not tainted 4.9.56-ged0b958 #65 [ 34.522287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.523557] ffff8801cb31f1f0 ffffffff81d93999 ffffffff83a46b40 ffff8801cb31f2c8 [ 34.524708] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801cb31f2b8 [ 34.525835] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 34.526955] Call Trace: [ 34.527309] [] dump_stack+0xc1/0x128 [ 34.528031] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 34.528928] [] panic+0x1bc/0x3a8 [ 34.529613] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 34.530707] [] ? load_image_and_restore+0xf9/0xf9 [ 34.531562] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 34.532497] [] __warn+0x1c4/0x1e0 [ 34.533170] [] warn_slowpath_null+0x2c/0x40 [ 34.533968] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 34.534886] [] ? trace_hardirqs_on+0xd/0x10 [ 34.535672] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 34.536501] [] ? dst_release+0x71/0xd0 [ 34.537242] [] ? ip6_pol_route+0xb30/0x1c90 [ 34.538027] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 34.541805] [] ? get_page_from_freelist+0xd19/0x1a00 [ 34.548520] [] ? fib6_get_table+0x1c0/0x340 [ 34.554455] [] ? __might_sleep+0x95/0x1a0 [ 34.560215] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 34.566668] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 34.573125] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 34.579929] [] ? _raw_read_unlock_bh+0x30/0x40 [ 34.586124] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 34.593099] [] kmalloc_order+0x2a/0x70 [ 34.598601] [] kmalloc_order_trace+0x1f/0x190 [ 34.605143] [] __kmalloc+0x19d/0x310 [ 34.610472] [] ip6_setup_cork+0x194/0x1200 [ 34.616322] [] ? xfrm_lookup+0x400/0xbf0 [ 34.621994] [] ip6_make_skb+0x1b8/0x440 [ 34.627601] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 34.634054] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 34.640510] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 34.646617] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 34.653164] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 34.660139] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 34.667117] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 34.673224] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 34.679243] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 34.685350] [] udpv6_sendmsg+0x1b1d/0x2540 [ 34.691199] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 34.697304] [] ? udp_v6_rehash+0xa0/0xa0 [ 34.702979] [] ? udp_seq_next+0x80/0x80 [ 34.708567] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 34.715545] [] ? sock_has_perm+0x1c2/0x3e0 [ 34.721391] [] ? ip6_datagram_release_cb+0x87/0x470 [ 34.728022] [] ? release_sock+0x20/0x1c0 [ 34.733695] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 34.740410] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 34.746602] [] ? release_sock+0x14c/0x1c0 [ 34.752365] [] inet_sendmsg+0x2bc/0x4c0 [ 34.757956] [] ? inet_sendmsg+0x73/0x4c0 [ 34.763628] [] ? inet_recvmsg+0x4c0/0x4c0 [ 34.769389] [] sock_sendmsg+0xca/0x110 [ 34.774888] [] SYSC_sendto+0x2c8/0x340 [ 34.780388] [] ? SYSC_connect+0x310/0x310 [ 34.786155] [] ? __pmd_alloc+0x410/0x410 [ 34.791835] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 34.798900] [] ? __do_page_fault+0x61a/0xd70 [ 34.804919] [] ? __do_page_fault+0x3c6/0xd70 [ 34.810939] [] ? SyS_setsockopt+0x17f/0x250 [ 34.816873] [] ? mm_fault_error+0x2c0/0x2c0 [ 34.822809] [] SyS_sendto+0x40/0x50 [ 34.828051] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 34.834640] Dumping ftrace buffer: [ 34.838144] (ftrace buffer empty) [ 34.841818] Kernel Offset: disabled [ 34.845408] Rebooting in 86400 seconds..