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-5,10.128.0.6' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.732499] ------------[ cut here ]------------ [ 42.733223] WARNING: CPU: 1 PID: 3249 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.734424] Kernel panic - not syncing: panic_on_warn set ... [ 42.734424] [ 42.735390] CPU: 1 PID: 3249 Comm: syzkaller940209 Not tainted 4.9.56-g5c73594 #66 [ 42.736398] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.737631] ffff8801d5ce71f0 ffffffff81d93999 ffffffff83a46b40 ffff8801d5ce72c8 [ 42.738756] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801d5ce72b8 [ 42.739899] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 42.741021] Call Trace: [ 42.741375] [] dump_stack+0xc1/0x128 [ 42.742084] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.742982] [] panic+0x1bc/0x3a8 [ 42.743706] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 42.744783] [] ? load_image_and_restore+0xf9/0xf9 [ 42.745651] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.746549] [] __warn+0x1c4/0x1e0 [ 42.747280] [] warn_slowpath_null+0x2c/0x40 [ 42.748064] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.748954] [] ? trace_hardirqs_on+0xd/0x10 [ 42.749739] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 42.750570] [] ? dst_release+0x71/0xd0 [ 42.751299] [] ? ip6_pol_route+0xb30/0x1c90 [ 42.752084] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 42.755326] [] ? get_page_from_freelist+0xd19/0x1a00 [ 42.762043] [] ? fib6_get_table+0x1c0/0x340 [ 42.767978] [] ? __might_sleep+0x95/0x1a0 [ 42.773740] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 42.780195] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 42.787343] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 42.794146] [] ? _raw_read_unlock_bh+0x30/0x40 [ 42.800342] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.807315] [] kmalloc_order+0x2a/0x70 [ 42.812813] [] kmalloc_order_trace+0x1f/0x190 [ 42.818921] [] __kmalloc+0x19d/0x310 [ 42.824247] [] ip6_setup_cork+0x194/0x1200 [ 42.830096] [] ? xfrm_lookup+0x400/0xbf0 [ 42.835770] [] ip6_make_skb+0x1b8/0x440 [ 42.841356] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 42.847812] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 42.854269] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 42.860378] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 42.866918] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.873892] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.880866] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 42.886976] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 42.892996] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 42.899101] [] udpv6_sendmsg+0x1b1d/0x2540 [ 42.904948] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 42.911056] [] ? udp_v6_rehash+0xa0/0xa0 [ 42.916731] [] ? udp_seq_next+0x80/0x80 [ 42.922319] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.929293] [] ? sock_has_perm+0x1c2/0x3e0 [ 42.935140] [] ? ip6_datagram_release_cb+0x87/0x470 [ 42.941766] [] ? release_sock+0x20/0x1c0 [ 42.947441] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 42.954156] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 42.960350] [] ? release_sock+0x14c/0x1c0 [ 42.966111] [] inet_sendmsg+0x2bc/0x4c0 [ 42.971696] [] ? inet_sendmsg+0x73/0x4c0 [ 42.977368] [] ? inet_recvmsg+0x4c0/0x4c0 [ 42.983128] [] sock_sendmsg+0xca/0x110 [ 42.988629] [] SYSC_sendto+0x2c8/0x340 [ 42.994129] [] ? SYSC_connect+0x310/0x310 [ 42.999889] [] ? __pmd_alloc+0x410/0x410 [ 43.005564] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 43.012630] [] ? __do_page_fault+0x61a/0xd70 [ 43.018652] [] ? __do_page_fault+0x3c6/0xd70 [ 43.024673] [] ? SyS_setsockopt+0x17f/0x250 [ 43.030605] [] ? mm_fault_error+0x2c0/0x2c0 [ 43.036544] [] SyS_sendto+0x40/0x50 [ 43.041786] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 43.048367] Dumping ftrace buffer: [ 43.051884] (ftrace buffer empty) [ 43.055559] Kernel Offset: disabled [ 43.059149] Rebooting in 86400 seconds..