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-0,10.128.0.52' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 52.636244] ------------[ cut here ]------------ [ 52.636988] WARNING: CPU: 0 PID: 3248 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 52.638173] Kernel panic - not syncing: panic_on_warn set ... [ 52.638173] [ 52.639167] CPU: 0 PID: 3248 Comm: syzkaller457189 Not tainted 4.9.56-ged0b958 #65 [ 52.640221] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.641559] ffff8801c99e71f0 ffffffff81d93999 ffffffff83a46b40 ffff8801c99e72c8 [ 52.642683] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801c99e72b8 [ 52.643816] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 52.644935] Call Trace: [ 52.645288] [] dump_stack+0xc1/0x128 [ 52.646018] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 52.646990] [] panic+0x1bc/0x3a8 [ 52.647653] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 52.648741] [] ? load_image_and_restore+0xf9/0xf9 [ 52.649593] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 52.650492] [] __warn+0x1c4/0x1e0 [ 52.651169] [] warn_slowpath_null+0x2c/0x40 [ 52.651971] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 52.652866] [] ? trace_hardirqs_on+0xd/0x10 [ 52.653652] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 52.654493] [] ? dst_release+0x71/0xd0 [ 52.655246] [] ? ip6_pol_route+0xb30/0x1c90 [ 52.656032] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 52.656929] [] ? get_page_from_freelist+0xd19/0x1a00 [ 52.663646] [] ? fib6_get_table+0x1c0/0x340 [ 52.669582] [] ? __might_sleep+0x95/0x1a0 [ 52.675346] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 52.681804] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 52.688259] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 52.695064] [] ? _raw_read_unlock_bh+0x30/0x40 [ 52.701260] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 52.708238] [] kmalloc_order+0x2a/0x70 [ 52.713737] [] kmalloc_order_trace+0x1f/0x190 [ 52.719847] [] __kmalloc+0x19d/0x310 [ 52.725178] [] ip6_setup_cork+0x194/0x1200 [ 52.731026] [] ? xfrm_lookup+0x400/0xbf0 [ 52.736699] [] ip6_make_skb+0x1b8/0x440 [ 52.742285] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 52.748739] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 52.755282] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 52.761390] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 52.767935] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 52.774911] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 52.781888] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 52.787997] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 52.794020] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 52.800158] [] udpv6_sendmsg+0x1b1d/0x2540 [ 52.806009] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 52.812116] [] ? udp_v6_rehash+0xa0/0xa0 [ 52.817791] [] ? udp_seq_next+0x80/0x80 [ 52.823382] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 52.830364] [] ? sock_has_perm+0x1c2/0x3e0 [ 52.836215] [] ? ip6_datagram_release_cb+0x87/0x470 [ 52.842844] [] ? release_sock+0x20/0x1c0 [ 52.848521] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 52.855240] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 52.861434] [] ? release_sock+0x14c/0x1c0 [ 52.867194] [] inet_sendmsg+0x2bc/0x4c0 [ 52.872779] [] ? inet_sendmsg+0x73/0x4c0 [ 52.878450] [] ? inet_recvmsg+0x4c0/0x4c0 [ 52.884213] [] sock_sendmsg+0xca/0x110 [ 52.889711] [] SYSC_sendto+0x2c8/0x340 [ 52.895211] [] ? SYSC_connect+0x310/0x310 [ 52.900970] [] ? __pmd_alloc+0x410/0x410 [ 52.906647] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 52.913712] [] ? __do_page_fault+0x61a/0xd70 [ 52.919731] [] ? __do_page_fault+0x3c6/0xd70 [ 52.925751] [] ? SyS_setsockopt+0x17f/0x250 [ 52.931685] [] ? mm_fault_error+0x2c0/0x2c0 [ 52.937618] [] SyS_sendto+0x40/0x50 [ 52.942862] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 52.949736] Dumping ftrace buffer: [ 52.953238] (ftrace buffer empty) [ 52.956911] Kernel Offset: disabled [ 52.960501] Rebooting in 86400 seconds..