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-0,10.128.0.20' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 56.049382] ------------[ cut here ]------------ [ 56.050149] WARNING: CPU: 1 PID: 3251 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 56.051365] Kernel panic - not syncing: panic_on_warn set ... [ 56.051365] [ 56.052343] CPU: 1 PID: 3251 Comm: syzkaller701417 Not tainted 4.9.56-ged0b958 #65 [ 56.053350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.054578] ffff8801d90971f0 ffffffff81d93999 ffffffff83a46b40 ffff8801d90972c8 [ 56.055721] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801d90972b8 [ 56.056848] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 56.058013] Call Trace: [ 56.058369] [] dump_stack+0xc1/0x128 [ 56.059100] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 56.060018] [] panic+0x1bc/0x3a8 [ 56.060694] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 56.061791] [] ? load_image_and_restore+0xf9/0xf9 [ 56.062645] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 56.063554] [] __warn+0x1c4/0x1e0 [ 56.064240] [] warn_slowpath_null+0x2c/0x40 [ 56.065024] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 56.065939] [] ? trace_hardirqs_on+0xd/0x10 [ 56.066727] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 56.067586] [] ? dst_release+0x71/0xd0 [ 56.068352] [] ? ip6_pol_route+0xb30/0x1c90 [ 56.069150] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 56.070024] [] ? get_page_from_freelist+0xd19/0x1a00 [ 56.076742] [] ? fib6_get_table+0x1c0/0x340 [ 56.082682] [] ? __might_sleep+0x95/0x1a0 [ 56.088445] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 56.094902] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 56.101358] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 56.108162] [] ? _raw_read_unlock_bh+0x30/0x40 [ 56.114359] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 56.121334] [] kmalloc_order+0x2a/0x70 [ 56.126834] [] kmalloc_order_trace+0x1f/0x190 [ 56.132944] [] __kmalloc+0x19d/0x310 [ 56.138272] [] ip6_setup_cork+0x194/0x1200 [ 56.144119] [] ? xfrm_lookup+0x400/0xbf0 [ 56.149795] [] ip6_make_skb+0x1b8/0x440 [ 56.155383] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 56.161841] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 56.168297] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 56.174405] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 56.180950] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 56.187925] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 56.194901] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 56.201009] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 56.207029] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 56.213137] [] udpv6_sendmsg+0x1b1d/0x2540 [ 56.219010] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 56.225117] [] ? udp_v6_rehash+0xa0/0xa0 [ 56.230794] [] ? udp_seq_next+0x80/0x80 [ 56.236382] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 56.243359] [] ? sock_has_perm+0x1c2/0x3e0 [ 56.249206] [] ? ip6_datagram_release_cb+0x87/0x470 [ 56.255836] [] ? release_sock+0x20/0x1c0 [ 56.261509] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 56.268225] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 56.274420] [] ? release_sock+0x14c/0x1c0 [ 56.280183] [] inet_sendmsg+0x2bc/0x4c0 [ 56.285770] [] ? inet_sendmsg+0x73/0x4c0 [ 56.291444] [] ? inet_recvmsg+0x4c0/0x4c0 [ 56.297206] [] sock_sendmsg+0xca/0x110 [ 56.302706] [] SYSC_sendto+0x2c8/0x340 [ 56.308206] [] ? SYSC_connect+0x310/0x310 [ 56.313967] [] ? __pmd_alloc+0x410/0x410 [ 56.319642] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 56.326712] [] ? __do_page_fault+0x61a/0xd70 [ 56.332754] [] ? __do_page_fault+0x3c6/0xd70 [ 56.338777] [] ? SyS_setsockopt+0x17f/0x250 [ 56.344710] [] ? mm_fault_error+0x2c0/0x2c0 [ 56.350648] [] SyS_sendto+0x40/0x50 [ 56.355888] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 56.362472] Dumping ftrace buffer: [ 56.365980] (ftrace buffer empty) [ 56.369654] Kernel Offset: disabled [ 56.373247] Rebooting in 86400 seconds..