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-1,10.128.0.62' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 50.085583] ------------[ cut here ]------------ [ 50.086289] WARNING: CPU: 1 PID: 3250 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 50.087566] Kernel panic - not syncing: panic_on_warn set ... [ 50.087566] [ 50.088532] CPU: 1 PID: 3250 Comm: syzkaller331020 Not tainted 4.9.56-ged0b958 #65 [ 50.089537] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.090799] ffff8801d74bf1f0 ffffffff81d93999 ffffffff83a46b40 ffff8801d74bf2c8 [ 50.091968] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801d74bf2b8 [ 50.093091] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 50.094222] Call Trace: [ 50.094576] [] dump_stack+0xc1/0x128 [ 50.095284] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 50.096197] [] panic+0x1bc/0x3a8 [ 50.096863] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 50.097956] [] ? load_image_and_restore+0xf9/0xf9 [ 50.098807] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 50.099703] [] __warn+0x1c4/0x1e0 [ 50.100379] [] warn_slowpath_null+0x2c/0x40 [ 50.101163] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 50.102067] [] ? trace_hardirqs_on+0xd/0x10 [ 50.102852] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 50.103701] [] ? dst_release+0x71/0xd0 [ 50.104430] [] ? ip6_pol_route+0xb30/0x1c90 [ 50.105214] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 50.106102] [] ? get_page_from_freelist+0xd19/0x1a00 [ 50.112819] [] ? fib6_get_table+0x1c0/0x340 [ 50.118757] [] ? __might_sleep+0x95/0x1a0 [ 50.124516] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 50.130971] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 50.137424] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 50.144229] [] ? _raw_read_unlock_bh+0x30/0x40 [ 50.150426] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 50.157403] [] kmalloc_order+0x2a/0x70 [ 50.162904] [] kmalloc_order_trace+0x1f/0x190 [ 50.169011] [] __kmalloc+0x19d/0x310 [ 50.174337] [] ip6_setup_cork+0x194/0x1200 [ 50.180182] [] ? xfrm_lookup+0x400/0xbf0 [ 50.185854] [] ip6_make_skb+0x1b8/0x440 [ 50.191440] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 50.197895] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 50.204353] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 50.210461] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 50.217003] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 50.223978] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 50.230953] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 50.237060] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 50.243080] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 50.249188] [] udpv6_sendmsg+0x1b1d/0x2540 [ 50.255036] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 50.261141] [] ? udp_v6_rehash+0xa0/0xa0 [ 50.266817] [] ? udp_seq_next+0x80/0x80 [ 50.272416] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 50.279391] [] ? sock_has_perm+0x1c2/0x3e0 [ 50.285240] [] ? ip6_datagram_release_cb+0x87/0x470 [ 50.291870] [] ? release_sock+0x20/0x1c0 [ 50.297544] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 50.304259] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 50.310452] [] ? release_sock+0x14c/0x1c0 [ 50.316213] [] inet_sendmsg+0x2bc/0x4c0 [ 50.321799] [] ? inet_sendmsg+0x73/0x4c0 [ 50.327474] [] ? inet_recvmsg+0x4c0/0x4c0 [ 50.333234] [] sock_sendmsg+0xca/0x110 [ 50.338735] [] SYSC_sendto+0x2c8/0x340 [ 50.344235] [] ? SYSC_connect+0x310/0x310 [ 50.349999] [] ? __pmd_alloc+0x410/0x410 [ 50.355672] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 50.362734] [] ? __do_page_fault+0x61a/0xd70 [ 50.368755] [] ? __do_page_fault+0x3c6/0xd70 [ 50.374776] [] ? SyS_setsockopt+0x17f/0x250 [ 50.380711] [] ? mm_fault_error+0x2c0/0x2c0 [ 50.386648] [] SyS_sendto+0x40/0x50 [ 50.391892] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 50.398824] Dumping ftrace buffer: [ 50.402333] (ftrace buffer empty) [ 50.406008] Kernel Offset: disabled [ 50.409598] Rebooting in 86400 seconds..