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-9,10.128.15.216' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 51.459901] ------------[ cut here ]------------ [ 51.460627] WARNING: CPU: 1 PID: 3250 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.461832] Kernel panic - not syncing: panic_on_warn set ... [ 51.461832] [ 51.462801] CPU: 1 PID: 3250 Comm: syzkaller856385 Not tainted 4.9.56-g5c73594 #66 [ 51.463806] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.465082] ffff8801d5c2f1f0 ffffffff81d93999 ffffffff83a46b40 ffff8801d5c2f2c8 [ 51.466210] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801d5c2f2b8 [ 51.467333] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 51.468457] Call Trace: [ 51.468810] [] dump_stack+0xc1/0x128 [ 51.469518] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.470415] [] panic+0x1bc/0x3a8 [ 51.471076] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 51.472150] [] ? load_image_and_restore+0xf9/0xf9 [ 51.473003] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.473899] [] __warn+0x1c4/0x1e0 [ 51.474572] [] warn_slowpath_null+0x2c/0x40 [ 51.475357] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 51.476230] [] ? trace_hardirqs_on+0xd/0x10 [ 51.477016] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 51.477846] [] ? dst_release+0x71/0xd0 [ 51.478575] [] ? ip6_pol_route+0xb30/0x1c90 [ 51.479361] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 51.480856] [] ? get_page_from_freelist+0xd19/0x1a00 [ 51.487571] [] ? fib6_get_table+0x1c0/0x340 [ 51.493506] [] ? __might_sleep+0x95/0x1a0 [ 51.499267] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 51.505724] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 51.512177] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 51.518979] [] ? _raw_read_unlock_bh+0x30/0x40 [ 51.525173] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 51.532150] [] kmalloc_order+0x2a/0x70 [ 51.537650] [] kmalloc_order_trace+0x1f/0x190 [ 51.543760] [] __kmalloc+0x19d/0x310 [ 51.549088] [] ip6_setup_cork+0x194/0x1200 [ 51.554934] [] ? xfrm_lookup+0x400/0xbf0 [ 51.560608] [] ip6_make_skb+0x1b8/0x440 [ 51.566196] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 51.572649] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 51.579103] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 51.585209] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 51.591748] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 51.598724] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 51.605699] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 51.611811] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 51.617829] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 51.623936] [] udpv6_sendmsg+0x1b1d/0x2540 [ 51.629782] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 51.635886] [] ? udp_v6_rehash+0xa0/0xa0 [ 51.641561] [] ? udp_seq_next+0x80/0x80 [ 51.647146] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 51.654119] [] ? sock_has_perm+0x1c2/0x3e0 [ 51.659967] [] ? ip6_datagram_release_cb+0x87/0x470 [ 51.666594] [] ? release_sock+0x20/0x1c0 [ 51.672266] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 51.678981] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 51.685173] [] ? release_sock+0x14c/0x1c0 [ 51.690933] [] inet_sendmsg+0x2bc/0x4c0 [ 51.696518] [] ? inet_sendmsg+0x73/0x4c0 [ 51.702189] [] ? inet_recvmsg+0x4c0/0x4c0 [ 51.707949] [] sock_sendmsg+0xca/0x110 [ 51.713446] [] SYSC_sendto+0x2c8/0x340 [ 51.718944] [] ? SYSC_connect+0x310/0x310 [ 51.724709] [] ? __pmd_alloc+0x410/0x410 [ 51.730381] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 51.737444] [] ? __do_page_fault+0x61a/0xd70 [ 51.743464] [] ? __do_page_fault+0x3c6/0xd70 [ 51.749485] [] ? SyS_setsockopt+0x17f/0x250 [ 51.755416] [] ? mm_fault_error+0x2c0/0x2c0 [ 51.761349] [] SyS_sendto+0x40/0x50 [ 51.766589] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 51.773488] Dumping ftrace buffer: [ 51.776989] (ftrace buffer empty) [ 51.780661] Kernel Offset: disabled [ 51.784250] Rebooting in 86400 seconds..