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-8,10.128.15.194' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 51.397744] ------------[ cut here ]------------ [ 51.398475] WARNING: CPU: 0 PID: 3261 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.399678] Kernel panic - not syncing: panic_on_warn set ... [ 51.399678] [ 51.400644] CPU: 0 PID: 3261 Comm: syzkaller829969 Not tainted 4.9.52-g96a28fc #57 [ 51.401648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.402901] ffff8801d53af1f0 ffffffff81d93149 ffffffff83a46b40 ffff8801d53af2c8 [ 51.404109] ffffffff83aa3b00 ffffffff8145201d 0000000000000009 ffff8801d53af2b8 [ 51.405233] ffffffff8142e771 0000000041b58ab3 ffffffff84185390 ffffffff8142e5b5 [ 51.406376] Call Trace: [ 51.406731] [] dump_stack+0xc1/0x128 [ 51.407439] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.408354] [] panic+0x1bc/0x3a8 [ 51.409016] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 51.410106] [] ? load_image_and_restore+0xf9/0xf9 [ 51.410957] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.411857] [] __warn+0x1c4/0x1e0 [ 51.412532] [] warn_slowpath_null+0x2c/0x40 [ 51.413328] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.414213] [] ? trace_hardirqs_on+0xd/0x10 [ 51.415039] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 51.415868] [] ? dst_release+0x71/0xd0 [ 51.416599] [] ? ip6_pol_route+0xb30/0x1c90 [ 51.417384] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 51.418258] [] ? get_page_from_freelist+0xd19/0x1a00 [ 51.424976] [] ? fib6_get_table+0x1c0/0x340 [ 51.430912] [] ? __might_sleep+0x95/0x1a0 [ 51.436674] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 51.443133] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 51.449590] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 51.456393] [] ? _raw_read_unlock_bh+0x30/0x40 [ 51.462587] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 51.469567] [] kmalloc_order+0x2a/0x70 [ 51.475064] [] kmalloc_order_trace+0x1f/0x190 [ 51.481173] [] __kmalloc+0x19d/0x310 [ 51.486501] [] ip6_setup_cork+0x194/0x1200 [ 51.492349] [] ? xfrm_lookup+0x400/0xbf0 [ 51.498024] [] ip6_make_skb+0x1b8/0x440 [ 51.503613] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 51.510071] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 51.516526] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 51.522634] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 51.529182] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 51.536159] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 51.543136] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 51.549253] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 51.555276] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 51.561384] [] udpv6_sendmsg+0x1b1d/0x2540 [ 51.567232] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 51.573341] [] ? udp_v6_rehash+0xa0/0xa0 [ 51.579015] [] ? udp_seq_next+0x80/0x80 [ 51.584604] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 51.591581] [] ? sock_has_perm+0x1c2/0x3e0 [ 51.597429] [] ? ip6_datagram_release_cb+0x87/0x470 [ 51.604060] [] ? release_sock+0x20/0x1c0 [ 51.609736] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 51.616452] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 51.622647] [] ? release_sock+0x14c/0x1c0 [ 51.628409] [] inet_sendmsg+0x2bc/0x4c0 [ 51.633994] [] ? inet_sendmsg+0x73/0x4c0 [ 51.639668] [] ? inet_recvmsg+0x4c0/0x4c0 [ 51.645428] [] sock_sendmsg+0xca/0x110 [ 51.650930] [] SYSC_sendto+0x2c8/0x340 [ 51.656431] [] ? SYSC_connect+0x310/0x310 [ 51.662194] [] ? lru_cache_add+0xd9/0x1e0 [ 51.667953] [] ? handle_mm_fault+0xb12/0x2530 [ 51.674061] [] ? _raw_spin_unlock+0x2c/0x50 [ 51.679995] [] ? handle_mm_fault+0x6ee/0x2530 [ 51.686106] [] ? __do_page_fault+0x510/0xbd0 [ 51.692126] [] ? up_read+0x1a/0x40 [ 51.697279] [] ? __do_page_fault+0x33f/0xbd0 [ 51.703302] [] SyS_sendto+0x40/0x50 [ 51.708546] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 51.715451] Dumping ftrace buffer: [ 51.718954] (ftrace buffer empty) [ 51.722629] Kernel Offset: disabled [ 51.726221] Rebooting in 86400 seconds..