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-7,10.128.0.51' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 58.768948] ------------[ cut here ]------------ [ 58.769796] WARNING: CPU: 0 PID: 3259 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 58.771266] Kernel panic - not syncing: panic_on_warn set ... [ 58.771266] [ 58.772363] CPU: 0 PID: 3259 Comm: syzkaller789927 Not tainted 4.9.56-g5c73594 #66 [ 58.773553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.774964] ffff8801c95d71f0 ffffffff81d93999 ffffffff83a46b40 ffff8801c95d72c8 [ 58.776401] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801c95d72b8 [ 58.777909] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 58.779313] Call Trace: [ 58.779683] [] dump_stack+0xc1/0x128 [ 58.780523] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 58.781655] [] panic+0x1bc/0x3a8 [ 58.782360] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 58.783653] [] ? load_image_and_restore+0xf9/0xf9 [ 58.784519] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 58.785713] [] __warn+0x1c4/0x1e0 [ 58.786544] [] warn_slowpath_null+0x2c/0x40 [ 58.787653] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 58.788644] [] ? trace_hardirqs_on+0xd/0x10 [ 58.792686] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 58.798976] [] ? dst_release+0x71/0xd0 [ 58.804486] [] ? ip6_pol_route+0xb30/0x1c90 [ 58.810430] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 58.817066] [] ? get_page_from_freelist+0xd19/0x1a00 [ 58.823791] [] ? fib6_get_table+0x1c0/0x340 [ 58.829730] [] ? __might_sleep+0x95/0x1a0 [ 58.835492] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 58.841951] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 58.848410] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 58.855216] [] ? _raw_read_unlock_bh+0x30/0x40 [ 58.861411] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 58.868391] [] kmalloc_order+0x2a/0x70 [ 58.873894] [] kmalloc_order_trace+0x1f/0x190 [ 58.880007] [] __kmalloc+0x19d/0x310 [ 58.885333] [] ip6_setup_cork+0x194/0x1200 [ 58.891191] [] ? xfrm_lookup+0x400/0xbf0 [ 58.896880] [] ip6_make_skb+0x1b8/0x440 [ 58.902472] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 58.908926] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 58.915383] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 58.921492] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 58.928036] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 58.935013] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 58.941990] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 58.948101] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 58.954122] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 58.960233] [] udpv6_sendmsg+0x1b1d/0x2540 [ 58.966080] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 58.972187] [] ? udp_v6_rehash+0xa0/0xa0 [ 58.977864] [] ? udp_seq_next+0x80/0x80 [ 58.983453] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 58.990434] [] ? sock_has_perm+0x1c2/0x3e0 [ 58.996288] [] ? ip6_datagram_release_cb+0x87/0x470 [ 59.002919] [] ? release_sock+0x20/0x1c0 [ 59.008595] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 59.015314] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 59.021508] [] ? release_sock+0x14c/0x1c0 [ 59.027270] [] inet_sendmsg+0x2bc/0x4c0 [ 59.032859] [] ? inet_sendmsg+0x73/0x4c0 [ 59.038535] [] ? inet_recvmsg+0x4c0/0x4c0 [ 59.044296] [] sock_sendmsg+0xca/0x110 [ 59.049797] [] SYSC_sendto+0x2c8/0x340 [ 59.055297] [] ? SYSC_connect+0x310/0x310 [ 59.061063] [] ? __pmd_alloc+0x410/0x410 [ 59.066741] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 59.073808] [] ? __do_page_fault+0x61a/0xd70 [ 59.079831] [] ? __do_page_fault+0x3c6/0xd70 [ 59.085854] [] ? SyS_setsockopt+0x17f/0x250 [ 59.091789] [] ? mm_fault_error+0x2c0/0x2c0 [ 59.097724] [] SyS_sendto+0x40/0x50 [ 59.102967] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 59.109555] Dumping ftrace buffer: [ 59.113060] (ftrace buffer empty) [ 59.116738] Kernel Offset: disabled [ 59.120332] Rebooting in 86400 seconds..