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-0,10.128.0.14' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 63.369537] ------------[ cut here ]------------ [ 63.370313] WARNING: CPU: 1 PID: 3255 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 63.371499] Kernel panic - not syncing: panic_on_warn set ... [ 63.371499] [ 63.372476] CPU: 1 PID: 3255 Comm: syzkaller272477 Not tainted 4.9.56-ged0b958 #65 [ 63.373484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.374701] ffff8801c450f1f0 ffffffff81d93999 ffffffff83a46b40 ffff8801c450f2c8 [ 63.375840] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801c450f2b8 [ 63.376985] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 63.378123] Call Trace: [ 63.378487] [] dump_stack+0xc1/0x128 [ 63.379196] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 63.380095] [] panic+0x1bc/0x3a8 [ 63.380760] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 63.381836] [] ? load_image_and_restore+0xf9/0xf9 [ 63.382687] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 63.383586] [] __warn+0x1c4/0x1e0 [ 63.384260] [] warn_slowpath_null+0x2c/0x40 [ 63.385060] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 63.385939] [] ? trace_hardirqs_on+0xd/0x10 [ 63.386743] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 63.387575] [] ? dst_release+0x71/0xd0 [ 63.388309] [] ? ip6_pol_route+0xb30/0x1c90 [ 63.389098] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 63.392036] [] ? get_page_from_freelist+0xd19/0x1a00 [ 63.398759] [] ? fib6_get_table+0x1c0/0x340 [ 63.404709] [] ? __might_sleep+0x95/0x1a0 [ 63.410483] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 63.416942] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 63.423409] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 63.430227] [] ? _raw_read_unlock_bh+0x30/0x40 [ 63.436428] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 63.443405] [] kmalloc_order+0x2a/0x70 [ 63.448905] [] kmalloc_order_trace+0x1f/0x190 [ 63.455017] [] __kmalloc+0x19d/0x310 [ 63.460346] [] ip6_setup_cork+0x194/0x1200 [ 63.466194] [] ? xfrm_lookup+0x400/0xbf0 [ 63.471869] [] ip6_make_skb+0x1b8/0x440 [ 63.477459] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 63.483917] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 63.490374] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 63.496484] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 63.503028] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 63.510004] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 63.516980] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 63.523089] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 63.529114] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 63.535222] [] udpv6_sendmsg+0x1b1d/0x2540 [ 63.541072] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 63.547182] [] ? udp_v6_rehash+0xa0/0xa0 [ 63.552864] [] ? udp_seq_next+0x80/0x80 [ 63.558457] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 63.565436] [] ? sock_has_perm+0x1c2/0x3e0 [ 63.571288] [] ? ip6_datagram_release_cb+0x87/0x470 [ 63.577932] [] ? release_sock+0x20/0x1c0 [ 63.583605] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 63.590324] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 63.596520] [] ? release_sock+0x14c/0x1c0 [ 63.602285] [] inet_sendmsg+0x2bc/0x4c0 [ 63.607873] [] ? inet_sendmsg+0x73/0x4c0 [ 63.613548] [] ? inet_recvmsg+0x4c0/0x4c0 [ 63.619312] [] sock_sendmsg+0xca/0x110 [ 63.624812] [] SYSC_sendto+0x2c8/0x340 [ 63.630313] [] ? SYSC_connect+0x310/0x310 [ 63.636078] [] ? __pmd_alloc+0x410/0x410 [ 63.641753] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 63.648816] [] ? __do_page_fault+0x61a/0xd70 [ 63.654842] [] ? __do_page_fault+0x3c6/0xd70 [ 63.660866] [] ? SyS_setsockopt+0x17f/0x250 [ 63.666804] [] ? mm_fault_error+0x2c0/0x2c0 [ 63.672740] [] SyS_sendto+0x40/0x50 [ 63.677981] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 63.684562] Dumping ftrace buffer: [ 63.688066] (ftrace buffer empty) [ 63.691741] Kernel Offset: disabled [ 63.695332] Rebooting in 86400 seconds..