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-5,10.128.15.208' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.360604] ------------[ cut here ]------------ [ 42.361319] WARNING: CPU: 0 PID: 3247 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.362530] Kernel panic - not syncing: panic_on_warn set ... [ 42.362530] [ 42.363512] CPU: 0 PID: 3247 Comm: syzkaller063161 Not tainted 4.9.56-ged0b958 #65 [ 42.364550] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.365766] ffff8801d92371f0 ffffffff81d93999 ffffffff83a46b40 ffff8801d92372c8 [ 42.366899] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801d92372b8 [ 42.368041] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 42.369164] Call Trace: [ 42.369517] [] dump_stack+0xc1/0x128 [ 42.370224] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.371120] [] panic+0x1bc/0x3a8 [ 42.371782] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 42.372855] [] ? load_image_and_restore+0xf9/0xf9 [ 42.373706] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.374606] [] __warn+0x1c4/0x1e0 [ 42.375280] [] warn_slowpath_null+0x2c/0x40 [ 42.376067] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.376943] [] ? trace_hardirqs_on+0xd/0x10 [ 42.377753] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 42.378605] [] ? dst_release+0x71/0xd0 [ 42.379370] [] ? ip6_pol_route+0xb30/0x1c90 [ 42.380154] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 42.383172] [] ? get_page_from_freelist+0xd19/0x1a00 [ 42.389894] [] ? fib6_get_table+0x1c0/0x340 [ 42.395828] [] ? __might_sleep+0x95/0x1a0 [ 42.401588] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 42.408044] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 42.414499] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 42.421302] [] ? _raw_read_unlock_bh+0x30/0x40 [ 42.427497] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.434473] [] kmalloc_order+0x2a/0x70 [ 42.439972] [] kmalloc_order_trace+0x1f/0x190 [ 42.446080] [] __kmalloc+0x19d/0x310 [ 42.451408] [] ip6_setup_cork+0x194/0x1200 [ 42.457258] [] ? xfrm_lookup+0x400/0xbf0 [ 42.462929] [] ip6_make_skb+0x1b8/0x440 [ 42.468515] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 42.474969] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 42.481425] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 42.487532] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 42.494073] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.501046] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.508021] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 42.514131] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 42.520148] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 42.526256] [] udpv6_sendmsg+0x1b1d/0x2540 [ 42.532104] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 42.538211] [] ? udp_v6_rehash+0xa0/0xa0 [ 42.543886] [] ? udp_seq_next+0x80/0x80 [ 42.549471] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.556447] [] ? sock_has_perm+0x1c2/0x3e0 [ 42.562295] [] ? ip6_datagram_release_cb+0x87/0x470 [ 42.568923] [] ? release_sock+0x20/0x1c0 [ 42.574597] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 42.581310] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 42.587503] [] ? release_sock+0x14c/0x1c0 [ 42.593262] [] inet_sendmsg+0x2bc/0x4c0 [ 42.598848] [] ? inet_sendmsg+0x73/0x4c0 [ 42.604520] [] ? inet_recvmsg+0x4c0/0x4c0 [ 42.610277] [] sock_sendmsg+0xca/0x110 [ 42.615788] [] SYSC_sendto+0x2c8/0x340 [ 42.621288] [] ? SYSC_connect+0x310/0x310 [ 42.627047] [] ? __pmd_alloc+0x410/0x410 [ 42.632721] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 42.639782] [] ? __do_page_fault+0x61a/0xd70 [ 42.645801] [] ? __do_page_fault+0x3c6/0xd70 [ 42.651826] [] ? SyS_setsockopt+0x17f/0x250 [ 42.657761] [] ? mm_fault_error+0x2c0/0x2c0 [ 42.663695] [] SyS_sendto+0x40/0x50 [ 42.668934] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 42.675836] Dumping ftrace buffer: [ 42.679340] (ftrace buffer empty) [ 42.683015] Kernel Offset: disabled [ 42.686605] Rebooting in 86400 seconds..