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-6,10.128.15.225' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 51.954143] ------------[ cut here ]------------ [ 51.954918] WARNING: CPU: 0 PID: 3254 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.956128] Kernel panic - not syncing: panic_on_warn set ... [ 51.956128] [ 51.957095] CPU: 0 PID: 3254 Comm: syzkaller088796 Not tainted 4.9.56-g5c73594 #66 [ 51.958103] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.959321] ffff8801d59671f0 ffffffff81d93999 ffffffff83a46b40 ffff8801d59672c8 [ 51.960453] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801d59672b8 [ 51.961605] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 51.962735] Call Trace: [ 51.963109] [] dump_stack+0xc1/0x128 [ 51.963818] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.964717] [] panic+0x1bc/0x3a8 [ 51.965383] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 51.966512] [] ? load_image_and_restore+0xf9/0xf9 [ 51.967384] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.968296] [] __warn+0x1c4/0x1e0 [ 51.968970] [] warn_slowpath_null+0x2c/0x40 [ 51.969759] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.970636] [] ? trace_hardirqs_on+0xd/0x10 [ 51.971433] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 51.972263] [] ? dst_release+0x71/0xd0 [ 51.972998] [] ? ip6_pol_route+0xb30/0x1c90 [ 51.973784] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 51.974657] [] ? get_page_from_freelist+0xd19/0x1a00 [ 51.981372] [] ? fib6_get_table+0x1c0/0x340 [ 51.987308] [] ? __might_sleep+0x95/0x1a0 [ 51.993069] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 51.999525] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 52.005978] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 52.012782] [] ? _raw_read_unlock_bh+0x30/0x40 [ 52.018977] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 52.025954] [] kmalloc_order+0x2a/0x70 [ 52.031455] [] kmalloc_order_trace+0x1f/0x190 [ 52.037564] [] __kmalloc+0x19d/0x310 [ 52.042894] [] ip6_setup_cork+0x194/0x1200 [ 52.048744] [] ? xfrm_lookup+0x400/0xbf0 [ 52.054418] [] ip6_make_skb+0x1b8/0x440 [ 52.060005] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 52.066460] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 52.072916] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 52.079027] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 52.085569] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 52.092545] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 52.099520] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 52.105630] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 52.112025] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 52.118135] [] udpv6_sendmsg+0x1b1d/0x2540 [ 52.123982] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 52.130091] [] ? udp_v6_rehash+0xa0/0xa0 [ 52.135769] [] ? udp_seq_next+0x80/0x80 [ 52.141359] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 52.148337] [] ? sock_has_perm+0x1c2/0x3e0 [ 52.154188] [] ? ip6_datagram_release_cb+0x87/0x470 [ 52.160817] [] ? release_sock+0x20/0x1c0 [ 52.166493] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 52.173212] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 52.179404] [] ? release_sock+0x14c/0x1c0 [ 52.185165] [] inet_sendmsg+0x2bc/0x4c0 [ 52.190754] [] ? inet_sendmsg+0x73/0x4c0 [ 52.196429] [] ? inet_recvmsg+0x4c0/0x4c0 [ 52.202193] [] sock_sendmsg+0xca/0x110 [ 52.207694] [] SYSC_sendto+0x2c8/0x340 [ 52.213197] [] ? SYSC_connect+0x310/0x310 [ 52.218960] [] ? __pmd_alloc+0x410/0x410 [ 52.224636] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 52.231713] [] ? __do_page_fault+0x61a/0xd70 [ 52.237736] [] ? __do_page_fault+0x3c6/0xd70 [ 52.243760] [] ? SyS_setsockopt+0x17f/0x250 [ 52.249694] [] ? mm_fault_error+0x2c0/0x2c0 [ 52.255630] [] SyS_sendto+0x40/0x50 [ 52.260873] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 52.267460] Dumping ftrace buffer: [ 52.270968] (ftrace buffer empty) [ 52.274645] Kernel Offset: disabled [ 52.278236] Rebooting in 86400 seconds..