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-0,10.128.0.21' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 51.363270] ------------[ cut here ]------------ [ 51.364010] WARNING: CPU: 0 PID: 3256 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.365211] Kernel panic - not syncing: panic_on_warn set ... [ 51.365211] [ 51.366190] CPU: 0 PID: 3256 Comm: syzkaller369022 Not tainted 4.9.56-ged0b958 #65 [ 51.367213] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.368430] ffff8801d6f1f1f0 ffffffff81d93999 ffffffff83a46b40 ffff8801d6f1f2c8 [ 51.369554] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801d6f1f2b8 [ 51.370676] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 51.371804] Call Trace: [ 51.372157] [] dump_stack+0xc1/0x128 [ 51.372865] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.373780] [] panic+0x1bc/0x3a8 [ 51.374496] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 51.375572] [] ? load_image_and_restore+0xf9/0xf9 [ 51.376426] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.377323] [] __warn+0x1c4/0x1e0 [ 51.377998] [] warn_slowpath_null+0x2c/0x40 [ 51.378785] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.379662] [] ? trace_hardirqs_on+0xd/0x10 [ 51.380452] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 51.381285] [] ? dst_release+0x71/0xd0 [ 51.382038] [] ? ip6_pol_route+0xb30/0x1c90 [ 51.382824] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 51.383699] [] ? get_page_from_freelist+0xd19/0x1a00 [ 51.390415] [] ? fib6_get_table+0x1c0/0x340 [ 51.396353] [] ? __might_sleep+0x95/0x1a0 [ 51.402111] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 51.408569] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 51.415023] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 51.421830] [] ? _raw_read_unlock_bh+0x30/0x40 [ 51.428032] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 51.435013] [] kmalloc_order+0x2a/0x70 [ 51.440515] [] kmalloc_order_trace+0x1f/0x190 [ 51.446621] [] __kmalloc+0x19d/0x310 [ 51.451949] [] ip6_setup_cork+0x194/0x1200 [ 51.457795] [] ? xfrm_lookup+0x400/0xbf0 [ 51.463485] [] ip6_make_skb+0x1b8/0x440 [ 51.469074] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 51.475529] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 51.481984] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 51.488092] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 51.494633] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 51.501607] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 51.508582] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 51.514692] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 51.520714] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 51.526822] [] udpv6_sendmsg+0x1b1d/0x2540 [ 51.532671] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 51.538782] [] ? udp_v6_rehash+0xa0/0xa0 [ 51.544457] [] ? udp_seq_next+0x80/0x80 [ 51.550047] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 51.557023] [] ? sock_has_perm+0x1c2/0x3e0 [ 51.562871] [] ? ip6_datagram_release_cb+0x87/0x470 [ 51.569500] [] ? release_sock+0x20/0x1c0 [ 51.575176] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 51.581893] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 51.588089] [] ? release_sock+0x14c/0x1c0 [ 51.593851] [] inet_sendmsg+0x2bc/0x4c0 [ 51.599440] [] ? inet_sendmsg+0x73/0x4c0 [ 51.605126] [] ? inet_recvmsg+0x4c0/0x4c0 [ 51.610892] [] sock_sendmsg+0xca/0x110 [ 51.616392] [] SYSC_sendto+0x2c8/0x340 [ 51.621892] [] ? SYSC_connect+0x310/0x310 [ 51.627654] [] ? __pmd_alloc+0x410/0x410 [ 51.633327] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 51.640391] [] ? __do_page_fault+0x61a/0xd70 [ 51.646410] [] ? __do_page_fault+0x3c6/0xd70 [ 51.652432] [] ? SyS_setsockopt+0x17f/0x250 [ 51.658369] [] ? mm_fault_error+0x2c0/0x2c0 [ 51.664306] [] SyS_sendto+0x40/0x50 [ 51.669547] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 51.676126] Dumping ftrace buffer: [ 51.679631] (ftrace buffer empty) [ 51.683307] Kernel Offset: disabled [ 51.686900] Rebooting in 86400 seconds..