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-0,10.128.0.18' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 32.947240] ------------[ cut here ]------------ [ 32.947942] WARNING: CPU: 0 PID: 3250 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 32.949145] Kernel panic - not syncing: panic_on_warn set ... [ 32.949145] [ 32.950110] CPU: 0 PID: 3250 Comm: syzkaller832146 Not tainted 4.9.52-g96a28fc #57 [ 32.951114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.952332] ffff8801cde8f1f0 ffffffff81d93149 ffffffff83a46b40 ffff8801cde8f2c8 [ 32.953458] ffffffff83aa3b00 ffffffff8145201d 0000000000000009 ffff8801cde8f2b8 [ 32.954604] ffffffff8142e771 0000000041b58ab3 ffffffff84185390 ffffffff8142e5b5 [ 32.955752] Call Trace: [ 32.956126] [] dump_stack+0xc1/0x128 [ 32.956834] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 32.957765] [] panic+0x1bc/0x3a8 [ 32.958430] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 32.959535] [] ? load_image_and_restore+0xf9/0xf9 [ 32.960388] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 32.961301] [] __warn+0x1c4/0x1e0 [ 32.961989] [] warn_slowpath_null+0x2c/0x40 [ 32.962773] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 32.963684] [] ? trace_hardirqs_on+0xd/0x10 [ 32.964470] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 32.965342] [] ? dst_release+0x71/0xd0 [ 32.966073] [] ? ip6_pol_route+0xb30/0x1c90 [ 32.966857] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 32.967730] [] ? get_page_from_freelist+0xd19/0x1a00 [ 32.974444] [] ? fib6_get_table+0x1c0/0x340 [ 32.980378] [] ? __might_sleep+0x95/0x1a0 [ 32.986139] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 32.992592] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 32.999047] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 33.005853] [] ? _raw_read_unlock_bh+0x30/0x40 [ 33.012049] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 33.019026] [] kmalloc_order+0x2a/0x70 [ 33.024528] [] kmalloc_order_trace+0x1f/0x190 [ 33.030637] [] __kmalloc+0x19d/0x310 [ 33.035965] [] ip6_setup_cork+0x194/0x1200 [ 33.041811] [] ? xfrm_lookup+0x400/0xbf0 [ 33.047485] [] ip6_make_skb+0x1b8/0x440 [ 33.053072] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 33.059526] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 33.065982] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 33.072089] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 33.078632] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 33.085608] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 33.092586] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 33.098694] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 33.104715] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 33.110822] [] udpv6_sendmsg+0x1b1d/0x2540 [ 33.116668] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 33.122774] [] ? udp_v6_rehash+0xa0/0xa0 [ 33.128448] [] ? udp_seq_next+0x80/0x80 [ 33.134033] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 33.141009] [] ? sock_has_perm+0x1c2/0x3e0 [ 33.146857] [] ? ip6_datagram_release_cb+0x87/0x470 [ 33.153487] [] ? release_sock+0x20/0x1c0 [ 33.159160] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 33.165874] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 33.172067] [] ? release_sock+0x14c/0x1c0 [ 33.177827] [] inet_sendmsg+0x2bc/0x4c0 [ 33.183413] [] ? inet_sendmsg+0x73/0x4c0 [ 33.189085] [] ? inet_recvmsg+0x4c0/0x4c0 [ 33.194845] [] sock_sendmsg+0xca/0x110 [ 33.200345] [] SYSC_sendto+0x2c8/0x340 [ 33.205846] [] ? SYSC_connect+0x310/0x310 [ 33.211614] [] ? lru_cache_add+0xd9/0x1e0 [ 33.217374] [] ? handle_mm_fault+0xb12/0x2530 [ 33.223482] [] ? _raw_spin_unlock+0x2c/0x50 [ 33.229414] [] ? handle_mm_fault+0x6ee/0x2530 [ 33.235523] [] ? __do_page_fault+0x510/0xbd0 [ 33.241544] [] ? up_read+0x1a/0x40 [ 33.246697] [] ? __do_page_fault+0x33f/0xbd0 [ 33.252718] [] SyS_sendto+0x40/0x50 [ 33.257957] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 33.264533] Dumping ftrace buffer: [ 33.268035] (ftrace buffer empty) [ 33.271709] Kernel Offset: disabled [ 33.275298] Rebooting in 86400 seconds..