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-5,10.128.0.35' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.370270] ------------[ cut here ]------------ [ 42.371032] WARNING: CPU: 1 PID: 3243 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.372237] Kernel panic - not syncing: panic_on_warn set ... [ 42.372237] [ 42.373202] CPU: 1 PID: 3243 Comm: syzkaller491414 Not tainted 4.9.56-ged0b958 #65 [ 42.374221] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.375441] ffff8801d481f1f0 ffffffff81d93999 ffffffff83a46b40 ffff8801d481f2c8 [ 42.376580] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801d481f2b8 [ 42.377700] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 42.378823] Call Trace: [ 42.379176] [] dump_stack+0xc1/0x128 [ 42.379885] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.380781] [] panic+0x1bc/0x3a8 [ 42.381446] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 42.382542] [] ? load_image_and_restore+0xf9/0xf9 [ 42.383392] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.384304] [] __warn+0x1c4/0x1e0 [ 42.384976] [] warn_slowpath_null+0x2c/0x40 [ 42.385763] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.386637] [] ? trace_hardirqs_on+0xd/0x10 [ 42.387435] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 42.388266] [] ? dst_release+0x71/0xd0 [ 42.388998] [] ? ip6_pol_route+0xb30/0x1c90 [ 42.389781] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 42.392185] [] ? get_page_from_freelist+0xd19/0x1a00 [ 42.398904] [] ? fib6_get_table+0x1c0/0x340 [ 42.404840] [] ? __might_sleep+0x95/0x1a0 [ 42.410602] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 42.417054] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 42.423507] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 42.430311] [] ? _raw_read_unlock_bh+0x30/0x40 [ 42.436507] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.443481] [] kmalloc_order+0x2a/0x70 [ 42.448981] [] kmalloc_order_trace+0x1f/0x190 [ 42.455090] [] __kmalloc+0x19d/0x310 [ 42.460416] [] ip6_setup_cork+0x194/0x1200 [ 42.466264] [] ? xfrm_lookup+0x400/0xbf0 [ 42.471935] [] ip6_make_skb+0x1b8/0x440 [ 42.477521] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 42.483972] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 42.490428] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 42.496537] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 42.503081] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.510057] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.517033] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 42.523143] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 42.529163] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 42.535270] [] udpv6_sendmsg+0x1b1d/0x2540 [ 42.541116] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 42.547238] [] ? udp_v6_rehash+0xa0/0xa0 [ 42.552928] [] ? udp_seq_next+0x80/0x80 [ 42.558528] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.565513] [] ? sock_has_perm+0x1c2/0x3e0 [ 42.571367] [] ? ip6_datagram_release_cb+0x87/0x470 [ 42.577997] [] ? release_sock+0x20/0x1c0 [ 42.583671] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 42.590387] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 42.596579] [] ? release_sock+0x14c/0x1c0 [ 42.602341] [] inet_sendmsg+0x2bc/0x4c0 [ 42.607927] [] ? inet_sendmsg+0x73/0x4c0 [ 42.613597] [] ? inet_recvmsg+0x4c0/0x4c0 [ 42.619355] [] sock_sendmsg+0xca/0x110 [ 42.624854] [] SYSC_sendto+0x2c8/0x340 [ 42.630356] [] ? SYSC_connect+0x310/0x310 [ 42.636120] [] ? __pmd_alloc+0x410/0x410 [ 42.641795] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 42.648860] [] ? __do_page_fault+0x61a/0xd70 [ 42.654879] [] ? __do_page_fault+0x3c6/0xd70 [ 42.660898] [] ? SyS_setsockopt+0x17f/0x250 [ 42.666849] [] ? mm_fault_error+0x2c0/0x2c0 [ 42.672790] [] SyS_sendto+0x40/0x50 [ 42.678035] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 42.684631] Dumping ftrace buffer: [ 42.688144] (ftrace buffer empty) [ 42.691826] Kernel Offset: disabled [ 42.695422] Rebooting in 86400 seconds..