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-0,10.128.15.202' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 51.087142] ------------[ cut here ]------------ [ 51.087866] WARNING: CPU: 1 PID: 3255 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.089114] Kernel panic - not syncing: panic_on_warn set ... [ 51.089114] [ 51.090078] CPU: 1 PID: 3255 Comm: syzkaller683075 Not tainted 4.9.56-ged0b958 #65 [ 51.091085] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.092333] ffff8801c44071f0 ffffffff81d93999 ffffffff83a46b40 ffff8801c44072c8 [ 51.093460] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801c44072b8 [ 51.094630] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 51.095757] Call Trace: [ 51.096113] [] dump_stack+0xc1/0x128 [ 51.096838] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.097735] [] panic+0x1bc/0x3a8 [ 51.098399] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 51.099476] [] ? load_image_and_restore+0xf9/0xf9 [ 51.100328] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.101228] [] __warn+0x1c4/0x1e0 [ 51.101904] [] warn_slowpath_null+0x2c/0x40 [ 51.102689] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.103587] [] ? trace_hardirqs_on+0xd/0x10 [ 51.104387] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 51.105234] [] ? dst_release+0x71/0xd0 [ 51.105965] [] ? ip6_pol_route+0xb30/0x1c90 [ 51.106763] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 51.107659] [] ? get_page_from_freelist+0xd19/0x1a00 [ 51.114375] [] ? fib6_get_table+0x1c0/0x340 [ 51.120314] [] ? __might_sleep+0x95/0x1a0 [ 51.126086] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 51.132543] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 51.138999] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 51.145804] [] ? _raw_read_unlock_bh+0x30/0x40 [ 51.152009] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 51.158988] [] kmalloc_order+0x2a/0x70 [ 51.164489] [] kmalloc_order_trace+0x1f/0x190 [ 51.172335] [] __kmalloc+0x19d/0x310 [ 51.177661] [] ip6_setup_cork+0x194/0x1200 [ 51.183510] [] ? xfrm_lookup+0x400/0xbf0 [ 51.189184] [] ip6_make_skb+0x1b8/0x440 [ 51.194772] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 51.201230] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 51.207689] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 51.213801] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 51.220344] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 51.227321] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 51.234297] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 51.240407] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 51.246688] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 51.252799] [] udpv6_sendmsg+0x1b1d/0x2540 [ 51.258648] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 51.264756] [] ? udp_v6_rehash+0xa0/0xa0 [ 51.270436] [] ? udp_seq_next+0x80/0x80 [ 51.276024] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 51.283003] [] ? sock_has_perm+0x1c2/0x3e0 [ 51.288856] [] ? ip6_datagram_release_cb+0x87/0x470 [ 51.295487] [] ? release_sock+0x20/0x1c0 [ 51.301164] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 51.307882] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 51.314078] [] ? release_sock+0x14c/0x1c0 [ 51.319839] [] inet_sendmsg+0x2bc/0x4c0 [ 51.325425] [] ? inet_sendmsg+0x73/0x4c0 [ 51.331101] [] ? inet_recvmsg+0x4c0/0x4c0 [ 51.336864] [] sock_sendmsg+0xca/0x110 [ 51.342368] [] SYSC_sendto+0x2c8/0x340 [ 51.347870] [] ? SYSC_connect+0x310/0x310 [ 51.353636] [] ? __pmd_alloc+0x410/0x410 [ 51.359312] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 51.366379] [] ? __do_page_fault+0x61a/0xd70 [ 51.372403] [] ? __do_page_fault+0x3c6/0xd70 [ 51.378426] [] ? SyS_setsockopt+0x17f/0x250 [ 51.384369] [] ? mm_fault_error+0x2c0/0x2c0 [ 51.390304] [] SyS_sendto+0x40/0x50 [ 51.395546] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 51.402155] Dumping ftrace buffer: [ 51.405659] (ftrace buffer empty) [ 51.409335] Kernel Offset: disabled [ 51.412927] Rebooting in 86400 seconds..