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-5,10.128.0.36' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 54.185878] ------------[ cut here ]------------ [ 54.186631] WARNING: CPU: 0 PID: 3247 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 54.187816] Kernel panic - not syncing: panic_on_warn set ... [ 54.187816] [ 54.188781] CPU: 0 PID: 3247 Comm: syzkaller818008 Not tainted 4.9.56-g5c73594 #66 [ 54.189787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.191004] ffff8801d55d71f0 ffffffff81d93999 ffffffff83a46b40 ffff8801d55d72c8 [ 54.192128] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801d55d72b8 [ 54.193250] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 54.194378] Call Trace: [ 54.194731] [] dump_stack+0xc1/0x128 [ 54.195438] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 54.196335] [] panic+0x1bc/0x3a8 [ 54.196997] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 54.198073] [] ? load_image_and_restore+0xf9/0xf9 [ 54.198924] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 54.199820] [] __warn+0x1c4/0x1e0 [ 54.200493] [] warn_slowpath_null+0x2c/0x40 [ 54.201278] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 54.202152] [] ? trace_hardirqs_on+0xd/0x10 [ 54.202939] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 54.203770] [] ? dst_release+0x71/0xd0 [ 54.204501] [] ? ip6_pol_route+0xb30/0x1c90 [ 54.205288] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 54.206167] [] ? get_page_from_freelist+0xd19/0x1a00 [ 54.212884] [] ? fib6_get_table+0x1c0/0x340 [ 54.218818] [] ? __might_sleep+0x95/0x1a0 [ 54.224577] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 54.231034] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 54.237489] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 54.244292] [] ? _raw_read_unlock_bh+0x30/0x40 [ 54.250487] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 54.257462] [] kmalloc_order+0x2a/0x70 [ 54.262962] [] kmalloc_order_trace+0x1f/0x190 [ 54.269068] [] __kmalloc+0x19d/0x310 [ 54.274396] [] ip6_setup_cork+0x194/0x1200 [ 54.280243] [] ? xfrm_lookup+0x400/0xbf0 [ 54.285917] [] ip6_make_skb+0x1b8/0x440 [ 54.291503] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 54.297959] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 54.304415] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 54.310521] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 54.317063] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 54.324036] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 54.331011] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 54.337119] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 54.343141] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 54.349252] [] udpv6_sendmsg+0x1b1d/0x2540 [ 54.355097] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 54.361205] [] ? udp_v6_rehash+0xa0/0xa0 [ 54.366881] [] ? udp_seq_next+0x80/0x80 [ 54.372465] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 54.379468] [] ? sock_has_perm+0x1c2/0x3e0 [ 54.385313] [] ? ip6_datagram_release_cb+0x87/0x470 [ 54.391941] [] ? release_sock+0x20/0x1c0 [ 54.397613] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 54.404328] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 54.410518] [] ? release_sock+0x14c/0x1c0 [ 54.416276] [] inet_sendmsg+0x2bc/0x4c0 [ 54.421860] [] ? inet_sendmsg+0x73/0x4c0 [ 54.427532] [] ? inet_recvmsg+0x4c0/0x4c0 [ 54.433292] [] sock_sendmsg+0xca/0x110 [ 54.438794] [] SYSC_sendto+0x2c8/0x340 [ 54.444294] [] ? SYSC_connect+0x310/0x310 [ 54.450058] [] ? __pmd_alloc+0x410/0x410 [ 54.455733] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 54.462799] [] ? __do_page_fault+0x61a/0xd70 [ 54.468818] [] ? __do_page_fault+0x3c6/0xd70 [ 54.474839] [] ? SyS_setsockopt+0x17f/0x250 [ 54.480770] [] ? mm_fault_error+0x2c0/0x2c0 [ 54.486705] [] SyS_sendto+0x40/0x50 [ 54.491952] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 54.498536] Dumping ftrace buffer: [ 54.502042] (ftrace buffer empty) [ 54.505714] Kernel Offset: disabled [ 54.509306] Rebooting in 86400 seconds..