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-5,10.128.15.219' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.272870] ------------[ cut here ]------------ [ 42.273575] WARNING: CPU: 0 PID: 3250 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.274759] Kernel panic - not syncing: panic_on_warn set ... [ 42.274759] [ 42.275727] CPU: 0 PID: 3250 Comm: syzkaller477817 Not tainted 4.9.56-ged0b958 #65 [ 42.276732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.277974] ffff8801ce97f1f0 ffffffff81d93999 ffffffff83a46b40 ffff8801ce97f2c8 [ 42.279118] ffffffff83aa3b00 ffffffff8145255d 0000000000000009 ffff8801ce97f2b8 [ 42.280288] ffffffff8142ec41 0000000041b58ab3 ffffffff841858d8 ffffffff8142ea85 [ 42.281440] Call Trace: [ 42.281797] [] dump_stack+0xc1/0x128 [ 42.282529] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.283442] [] panic+0x1bc/0x3a8 [ 42.284166] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 42.285264] [] ? load_image_and_restore+0xf9/0xf9 [ 42.286121] [] ? __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.287018] [] __warn+0x1c4/0x1e0 [ 42.287692] [] warn_slowpath_null+0x2c/0x40 [ 42.288489] [] __alloc_pages_slowpath+0x116d/0x1dc0 [ 42.289362] [] ? trace_hardirqs_on+0xd/0x10 [ 42.290149] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 42.290979] [] ? dst_release+0x71/0xd0 [ 42.291710] [] ? ip6_pol_route+0xb30/0x1c90 [ 42.292495] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 42.296035] [] ? get_page_from_freelist+0xd19/0x1a00 [ 42.302750] [] ? fib6_get_table+0x1c0/0x340 [ 42.308686] [] ? __might_sleep+0x95/0x1a0 [ 42.314452] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 42.320911] [] ? __ipv6_dev_get_saddr+0x26f/0x4d0 [ 42.327372] [] ? __alloc_pages_slowpath+0x1dc0/0x1dc0 [ 42.334177] [] ? _raw_read_unlock_bh+0x30/0x40 [ 42.340374] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.347353] [] kmalloc_order+0x2a/0x70 [ 42.352852] [] kmalloc_order_trace+0x1f/0x190 [ 42.358961] [] __kmalloc+0x19d/0x310 [ 42.364287] [] ip6_setup_cork+0x194/0x1200 [ 42.370136] [] ? xfrm_lookup+0x400/0xbf0 [ 42.375809] [] ip6_make_skb+0x1b8/0x440 [ 42.381395] [] ? ip6_dst_lookup_tail+0x3aa/0x1660 [ 42.387851] [] ? ip6_dst_lookup_tail+0x438/0x1660 [ 42.394308] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 42.400416] [] ? ip6_push_pending_frames+0xe0/0xe0 [ 42.406958] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.413936] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.420914] [] ? xfrm_lookup_route+0x4f/0x1a0 [ 42.427023] [] ? ip6_dst_hoplimit+0xa6/0x380 [ 42.433043] [] ? ip6_dst_hoplimit+0x1d3/0x380 [ 42.439150] [] udpv6_sendmsg+0x1b1d/0x2540 [ 42.444996] [] ? ip_reply_glue_bits+0xb0/0xb0 [ 42.451103] [] ? udp_v6_rehash+0xa0/0xa0 [ 42.456780] [] ? udp_seq_next+0x80/0x80 [ 42.462367] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 42.469347] [] ? sock_has_perm+0x1c2/0x3e0 [ 42.475198] [] ? ip6_datagram_release_cb+0x87/0x470 [ 42.481832] [] ? release_sock+0x20/0x1c0 [ 42.487506] [] ? ip6_datagram_release_cb+0x2b1/0x470 [ 42.494308] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 42.500505] [] ? release_sock+0x14c/0x1c0 [ 42.506272] [] inet_sendmsg+0x2bc/0x4c0 [ 42.511857] [] ? inet_sendmsg+0x73/0x4c0 [ 42.517530] [] ? inet_recvmsg+0x4c0/0x4c0 [ 42.523299] [] sock_sendmsg+0xca/0x110 [ 42.528800] [] SYSC_sendto+0x2c8/0x340 [ 42.534301] [] ? SYSC_connect+0x310/0x310 [ 42.540061] [] ? __pmd_alloc+0x410/0x410 [ 42.545742] [] ? selinux_netlbl_sock_rcv_skb+0x470/0x470 [ 42.552808] [] ? __do_page_fault+0x61a/0xd70 [ 42.558831] [] ? __do_page_fault+0x3c6/0xd70 [ 42.564854] [] ? SyS_setsockopt+0x17f/0x250 [ 42.570789] [] ? mm_fault_error+0x2c0/0x2c0 [ 42.576721] [] SyS_sendto+0x40/0x50 [ 42.581962] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 42.588860] Dumping ftrace buffer: [ 42.592367] (ftrace buffer empty) [ 42.596041] Kernel Offset: disabled [ 42.599632] Rebooting in 86400 seconds..