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-0,10.128.0.18' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 32.947240] ------------[ cut here ]------------ [ 32.947942] WARNING: CPU: 0 PID: 3250 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 32.949145] Kernel panic - not syncing: panic_on_warn set ... [ 32.949145] [ 32.950110] CPU: 0 PID: 3250 Comm: syzkaller832146 Not tainted 4.9.52-g96a28fc #57 [ 32.951114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.952332] ffff8801cde8f1f0 ffffffff81d93149 ffffffff83a46b40 ffff8801cde8f2c8 [ 32.953458] ffffffff83aa3b00 ffffffff8145201d 0000000000000009 ffff8801cde8f2b8 [ 32.954604] ffffffff8142e771 0000000041b58ab3 ffffffff84185390 ffffffff8142e5b5 [ 32.955752] Call Trace: [ 32.956126] [<ffffffff81d93149>] dump_stack+0xc1/0x128 [ 32.956834] [<ffffffff8145201d>] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 32.957765] [<ffffffff8142e771>] panic+0x1bc/0x3a8 [ 32.958430] [<ffffffff8142e5b5>] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 32.959535] [<ffffffff8142f3d5>] ? load_image_and_restore+0xf9/0xf9 [ 32.960388] [<ffffffff8145201d>] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 32.961301] [<ffffffff81131ed4>] __warn+0x1c4/0x1e0 [ 32.961989] [<ffffffff8113213c>] warn_slowpath_null+0x2c/0x40 [ 32.962773] [<ffffffff8145201d>] __alloc_pages_slowpath+0x116d/0x1dc0 [ 32.963684] [<ffffffff8123b40d>] ? trace_hardirqs_on+0xd/0x10 [ 32.964470] [<ffffffff81145fda>] ? __local_bh_enable_ip+0x6a/0xd0 [ 32.965342] [<ffffffff82f57c61>] ? dst_release+0x71/0xd0 [ 32.966073] [<ffffffff834584c0>] ? ip6_pol_route+0xb30/0x1c90 [ 32.966857] [<ffffffff81450eb0>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 32.967730] [<ffffffff8144f559>] ? get_page_from_freelist+0xd19/0x1a00 [ 32.974444] [<ffffffff83468050>] ? fib6_get_table+0x1c0/0x340 [ 32.980378] [<ffffffff811ba655>] ? __might_sleep+0x95/0x1a0 [ 32.986139] [<ffffffff81452fab>] __alloc_pages_nodemask+0x33b/0x6b0 [ 32.992592] [<ffffffff83437fdf>] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 32.999047] [<ffffffff81452c70>] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 33.005853] [<ffffffff838ac240>] ? _raw_read_unlock_bh+0x30/0x40 [ 33.012049] [<ffffffff8123ba30>] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 33.019026] [<ffffffff814a65ca>] kmalloc_order+0x2a/0x70 [ 33.024528] [<ffffffff814a662f>] kmalloc_order_trace+0x1f/0x190 [ 33.030637] [<ffffffff815385cd>] __kmalloc+0x19d/0x310 [ 33.035965] [<ffffffff8340e7c4>] ip6_setup_cork+0x194/0x1200 [ 33.041811] [<ffffffff833be440>] ? xfrm_lookup+0x400/0xbf0 [ 33.047485] [<ffffffff834225b8>] ip6_make_skb+0x1b8/0x440 [ 33.053072] [<ffffffff8341409a>] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 33.059526] [<ffffffff83414128>] ? ip6_dst_lookup_tail+0x438/0x1660 [ 33.065982] [<ffffffff831f7680>] ? ip_reply_glue_bits+0xb0/0xb0 [ 33.072089] [<ffffffff83422400>] ? ip6_push_pending_frames+0xe0/0xe0 [ 33.078632] [<ffffffff8123ba30>] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 33.085608] [<ffffffff8123ba30>] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 33.092586] [<ffffffff833bfb3f>] ? xfrm_lookup_route+0x4f/0x1a0 [ 33.098694] [<ffffffff83538ab6>] ? ip6_dst_hoplimit+0xa6/0x380 [ 33.104715] [<ffffffff83538be3>] ? ip6_dst_hoplimit+0x1d3/0x380 [ 33.110822] [<ffffffff8348859d>] udpv6_sendmsg+0x1b1d/0x2540 [ 33.116668] [<ffffffff831f7680>] ? ip_reply_glue_bits+0xb0/0xb0 [ 33.122774] [<ffffffff83486a80>] ? udp_v6_rehash+0xa0/0xa0 [ 33.128448] [<ffffffff832b4600>] ? udp_seq_next+0x80/0x80 [ 33.134033] [<ffffffff8123ba30>] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 33.141009] [<ffffffff81bf5c72>] ? sock_has_perm+0x1c2/0x3e0 [ 33.146857] [<ffffffff834d0be7>] ? ip6_datagram_release_cb+0x87/0x470 [ 33.153487] [<ffffffff82edd8d0>] ? release_sock+0x20/0x1c0 [ 33.159160] [<ffffffff834d0e11>] ? ip6_datagram_release_cb+0x2b1/0x470 [ 33.165874] [<ffffffff838abdf0>] ? _raw_spin_unlock_bh+0x30/0x40 [ 33.172067] [<ffffffff82edd9fc>] ? release_sock+0x14c/0x1c0 [ 33.177827] [<ffffffff832e9fec>] inet_sendmsg+0x2bc/0x4c0 [ 33.183413] [<ffffffff832e9da3>] ? inet_sendmsg+0x73/0x4c0 [ 33.189085] [<ffffffff832e9d30>] ? inet_recvmsg+0x4c0/0x4c0 [ 33.194845] [<ffffffff82ecfb9a>] sock_sendmsg+0xca/0x110 [ 33.200345] [<ffffffff82ed0af8>] SYSC_sendto+0x2c8/0x340 [ 33.205846] [<ffffffff82ed0830>] ? SYSC_connect+0x310/0x310 [ 33.211614] [<ffffffff814677e9>] ? lru_cache_add+0xd9/0x1e0 [ 33.217374] [<ffffffff814ce8b2>] ? handle_mm_fault+0xb12/0x2530 [ 33.223482] [<ffffffff838abd9c>] ? _raw_spin_unlock+0x2c/0x50 [ 33.229414] [<ffffffff814ce48e>] ? handle_mm_fault+0x6ee/0x2530 [ 33.235523] [<ffffffff810e0230>] ? __do_page_fault+0x510/0xbd0 [ 33.241544] [<ffffffff812306ba>] ? up_read+0x1a/0x40 [ 33.246697] [<ffffffff810e005f>] ? __do_page_fault+0x33f/0xbd0 [ 33.252718] [<ffffffff82ed2fa0>] SyS_sendto+0x40/0x50 [ 33.257957] [<ffffffff838ac645>] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 33.264533] Dumping ftrace buffer: [ 33.268035] (ftrace buffer empty) [ 33.271709] Kernel Offset: disabled [ 33.275298] Rebooting in 86400 seconds..