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-0,10.128.15.196' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 32.864143] ------------[ cut here ]------------ [ 32.864865] WARNING: CPU: 1 PID: 3242 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 32.866064] Kernel panic - not syncing: panic_on_warn set ... [ 32.866064] [ 32.867027] CPU: 1 PID: 3242 Comm: syzkaller740167 Not tainted 4.9.56-ged0b958 #65 [ 32.868032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.869248] ffff8801cadc71f0 ffffffff81d93999 ffffffff83a46b40 ffff8801cadc72c8 [ 32.870406] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801cadc72b8 [ 32.871528] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 32.872652] Call Trace: [ 32.873006] [] dump_stack+0xc1/0x128 [ 32.873749] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 32.874646] [] panic+0x1bc/0x3a8 [ 32.875341] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 32.876416] [] ? load_image_and_restore+0xf9/0xf9 [ 32.877268] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 32.878165] [] __warn+0x1c4/0x1e0 [ 32.878841] [] warn_slowpath_null+0x2c/0x40 [ 32.879626] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 32.880500] [] ? trace_hardirqs_on+0xd/0x10 [ 32.881285] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 32.882145] [] ? dst_release+0x71/0xd0 [ 32.882876] [] ? ip6_pol_route+0xb30/0x1c90 [ 32.883660] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 32.884546] [] ? get_page_from_freelist+0xd19/0x1a00 [ 32.891264] [] ? fib6_get_table+0x1c0/0x340 [ 32.897200] [] ? __might_sleep+0x95/0x1a0 [ 32.902959] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 32.909413] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 32.915869] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 32.922674] [] ? _raw_read_unlock_bh+0x30/0x40 [ 32.928871] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 32.935846] [] kmalloc_order+0x2a/0x70 [ 32.941347] [] kmalloc_order_trace+0x1f/0x190 [ 32.947454] [] __kmalloc+0x19d/0x310 [ 32.952780] [] ip6_setup_cork+0x194/0x1200 [ 32.958627] [] ? xfrm_lookup+0x400/0xbf0 [ 32.964302] [] ip6_make_skb+0x1b8/0x440 [ 32.969886] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 32.976341] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 32.982974] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 32.989085] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 32.995627] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 33.002602] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 33.009581] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 33.015700] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 33.021725] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 33.027831] [] udpv6_sendmsg+0x1b1d/0x2540 [ 33.033677] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 33.039782] [] ? udp_v6_rehash+0xa0/0xa0 [ 33.045458] [] ? udp_seq_next+0x80/0x80 [ 33.051044] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 33.058018] [] ? sock_has_perm+0x1c2/0x3e0 [ 33.063867] [] ? ip6_datagram_release_cb+0x87/0x470 [ 33.070492] [] ? release_sock+0x20/0x1c0 [ 33.076165] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 33.082882] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 33.089076] [] ? release_sock+0x14c/0x1c0 [ 33.094837] [] inet_sendmsg+0x2bc/0x4c0 [ 33.100422] [] ? inet_sendmsg+0x73/0x4c0 [ 33.106097] [] ? inet_recvmsg+0x4c0/0x4c0 [ 33.111859] [] sock_sendmsg+0xca/0x110 [ 33.117358] [] SYSC_sendto+0x2c8/0x340 [ 33.122855] [] ? SYSC_connect+0x310/0x310 [ 33.128616] [] ? __pmd_alloc+0x410/0x410 [ 33.134291] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 33.141354] [] ? __do_page_fault+0x61a/0xd70 [ 33.147375] [] ? __do_page_fault+0x3c6/0xd70 [ 33.153393] [] ? SyS_setsockopt+0x17f/0x250 [ 33.159326] [] ? mm_fault_error+0x2c0/0x2c0 [ 33.165260] [] SyS_sendto+0x40/0x50 [ 33.170500] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 33.177385] Dumping ftrace buffer: [ 33.180885] (ftrace buffer empty) [ 33.184561] Kernel Offset: disabled [ 33.188152] Rebooting in 86400 seconds..