Copyright 2004-2011 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF[   27.566384] ==================================================================
/eth0/42:01:0a:8[   27.574075] BUG: KMSAN: uninit-value in receive_mergeable drivers/net/virtio_net.c:817 [inline]
/eth0/42:01:0a:8[   27.574075] BUG: KMSAN: uninit-value in receive_buf+0x324e/0x6ae0 drivers/net/virtio_net.c:917
0:0a:27
[   27.581686] CPU: 0 PID: 2168 Comm: startpar Not tainted 4.17.0+ #3
[   27.588763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   27.598100] Call Trace:
[   27.600666]  <IRQ>
[   27.602802]  __dump_stack lib/dump_stack.c:77 [inline]
[   27.602802]  dump_stack+0x185/0x1d0 lib/dump_stack.c:113
[   27.606423]  kmsan_report+0x188/0x2a0 mm/kmsan/kmsan.c:1117
[   27.610221]  __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:620
[   27.614269]  receive_mergeable drivers/net/virtio_net.c:817 [inline]
[   27.614269]  receive_buf+0x324e/0x6ae0 drivers/net/virtio_net.c:917
[   27.618144]  virtnet_receive drivers/net/virtio_net.c:1200 [inline]
[   27.618144]  virtnet_poll+0xac2/0x1540 drivers/net/virtio_net.c:1286
[   27.622036]  ? refill_work+0x2c0/0x2c0 drivers/net/virtio_net.c:1187
[   27.625912]  napi_poll net/core/dev.c:5735 [inline]
[   27.625912]  net_rx_action+0x766/0x1a80 net/core/dev.c:5801
[   27.629870]  ? net_tx_action+0xad0/0xad0 net/core/dev.c:4289
[   27.633912]  __do_softirq+0x592/0x979 kernel/softirq.c:285
[   27.637694]  invoke_softirq kernel/softirq.c:365 [inline]
[   27.637694]  irq_exit+0x202/0x240 kernel/softirq.c:405
[   27.641129]  exiting_irq+0xe/0x10 arch/x86/include/asm/apic.h:525
[   27.644562]  do_IRQ+0x17d/0x1c0 arch/x86/kernel/irq.c:264
[   27.647833]  common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:642
[   27.651608]  </IRQ>
[   27.653832] RIP: 0010:msan_get_shadow_origin_ptr+0x7d/0x230 mm/kmsan/kmsan_instr.c:248
[   27.659525] RSP: 0018:ffff8801cbbff4a8 EFLAGS: 00000283 ORIG_RAX: ffffffffffffffd8
[   27.667237] RAX: ffff8801d8ae0000 RBX: ffffffff8b58c000 RCX: ffff880000000000
[   27.674505] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8801cbbff5d0
[   27.681757] RBP: ffff8801cbbff4d8 R08: 0000000001080001 R09: 0000000000000002
[   27.689016] R10: 0000000000000000 R11: ffffffff846d72d0 R12: ffff8801d9389aa0
[   27.696280] R13: ffff8801cbbff5d0 R14: ffffffff8b58b000 R15: ffff8801cbbff5d0
[   27.703552]  ? tty_read+0x6c0/0x6c0 drivers/tty/tty_io.c:828
[   27.707173]  __msan_metadata_ptr_for_store_8+0x13/0x20 mm/kmsan/kmsan_instr.c:321
[   27.712436]  klist_next+0x235/0x5e0 lib/klist.c:390
[   27.716056]  ? klist_class_dev_get+0x60/0x60 drivers/base/class.c:125
[   27.720460]  class_dev_iter_next drivers/base/class.c:304 [inline]
[   27.720460]  class_find_device+0x191/0x490 drivers/base/class.c:408
[   27.724679]  ? tty_read+0x6c0/0x6c0 drivers/tty/tty_io.c:828
[   27.728291]  tty_get_device drivers/tty/tty_io.c:2797 [inline]
[   27.728291]  alloc_tty_struct+0x902/0xc50 drivers/tty/tty_io.c:2844
[   27.732420]  tty_init_dev+0xd3/0x1020 drivers/tty/tty_io.c:1317
[   27.736206]  ? _cond_resched+0x3c/0xd0 kernel/sched/core.c:5002
[   27.740083]  ptmx_open+0x2bb/0x7c0 drivers/tty/pty.c:832
[   27.743622]  ? ptm_open_peer+0x440/0x440 drivers/tty/pty.c:641
[   27.747695]  chrdev_open+0xc25/0xd90 fs/char_dev.c:417
[   27.751421]  ? cd_forget+0x330/0x330 include/linux/compiler.h:224
[   27.755145]  do_dentry_open+0xccc/0x1440 fs/open.c:794
[   27.759220]  vfs_open+0x1b6/0x2f0 fs/open.c:908
[   27.762693]  do_last fs/namei.c:3365 [inline]
[   27.762693]  path_openat+0x4771/0x6640 fs/namei.c:3506
[   27.766580]  ? __msan_poison_alloca+0x15c/0x1d0 mm/kmsan/kmsan_instr.c:590
[   27.771239]  ? __alloc_fd+0x428/0xb20 fs/file.c:504
[   27.775033]  ? kmsan_set_origin_inline+0x6b/0x120 mm/kmsan/kmsan_instr.c:528
[   27.779870]  do_filp_open+0x261/0x640 fs/namei.c:3540
[   27.783661]  do_sys_open+0x624/0x960 fs/open.c:1101
[   27.787359]  ? syscall_return_slowpath+0xe9/0x710 arch/x86/entry/common.c:265
[   27.792186]  __do_sys_open fs/open.c:1119 [inline]
[   27.792186]  __se_sys_open fs/open.c:1114 [inline]
[   27.792186]  __x64_sys_open+0xf2/0x130 fs/open.c:1114
[   27.796064]  ? do_sys_open+0x960/0x960 include/linux/fsnotify.h:220
[   27.799942]  do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
[   27.803817]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   27.808999] RIP: 0033:0x7f37d7262120
[   27.812708] RSP: 002b:00007ffcdb496398 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
[   27.820409] RAX: ffffffffffffffda RBX: 000000000084e5d0 RCX: 00007f37d7262120
[   27.827670] RDX: 0000000000000080 RSI: 0000000000000102 RDI: 0000000000406c1d
[   27.834921] RBP: 0000000000000001 R08: 0000000000000000 R09: 00000000ffffffff
[   27.842185] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000002048
[   27.849460] R13: 000000000084e618 R14: 0000000000002000 R15: 00007f37d77346a8
[   27.856736] 
[   27.858363] Uninit was stored to memory at:
[   27.862687]  kmsan_save_stack_with_flags mm/kmsan/kmsan.c:279 [inline]
[   27.862687]  kmsan_save_stack mm/kmsan/kmsan.c:294 [inline]
[   27.862687]  kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:685
[   27.867772]  __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:464
[   27.871987]  receive_mergeable drivers/net/virtio_net.c:690 [inline]
[   27.871987]  receive_buf+0x2dbb/0x6ae0 drivers/net/virtio_net.c:917
[   27.875857]  virtnet_receive drivers/net/virtio_net.c:1200 [inline]
[   27.875857]  virtnet_poll+0xac2/0x1540 drivers/net/virtio_net.c:1286
[   27.879736]  napi_poll net/core/dev.c:5735 [inline]
[   27.879736]  net_rx_action+0x766/0x1a80 net/core/dev.c:5801
[   27.883690]  __do_softirq+0x592/0x979 kernel/softirq.c:285
[   27.887465] Uninit was created at:
[   27.890985]  kmsan_save_stack_with_flags mm/kmsan/kmsan.c:279 [inline]
[   27.890985]  kmsan_alloc_meta_for_pages+0x161/0x3a0 mm/kmsan/kmsan.c:815
[   27.895993]  kmsan_alloc_page+0x82/0xe0 mm/kmsan/kmsan.c:885
[   27.899949]  __alloc_pages_nodemask+0xf7b/0x5cc0 mm/page_alloc.c:4402
[   27.904696]  alloc_pages_current+0x6b1/0x970 mm/mempolicy.c:2093
[   27.909091]  alloc_pages include/linux/gfp.h:494 [inline]
[   27.909091]  skb_page_frag_refill+0x3ba/0x5e0 net/core/sock.c:2211
[   27.913567]  add_recvbuf_mergeable drivers/net/virtio_net.c:1067 [inline]
[   27.913567]  try_fill_recv+0x3d5/0x2580 drivers/net/virtio_net.c:1108
[   27.917519]  virtnet_open+0x188/0x600 drivers/net/virtio_net.c:1311
[   27.921312]  __dev_open+0x613/0x840 net/core/dev.c:1392
[   27.924918]  __dev_change_flags+0x401/0xb60 net/core/dev.c:6955
[   27.929217]  dev_change_flags+0xca/0x230 net/core/dev.c:7024
[   27.933260]  do_setlink+0x165b/0x6010 net/core/rtnetlink.c:2362
[   27.937053]  rtnl_newlink+0x2b33/0x37a0 net/core/rtnetlink.c:2970
[   27.941034]  rtnetlink_rcv_msg+0xa44/0x1570 net/core/rtnetlink.c:4646
[   27.945345]  netlink_rcv_skb+0x37e/0x600 net/netlink/af_netlink.c:2448
[   27.949382]  rtnetlink_rcv+0x50/0x60 net/core/rtnetlink.c:4664
[   27.953075]  netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline]
[   27.953075]  netlink_unicast+0x1680/0x1750 net/netlink/af_netlink.c:1336
[   27.957287]  netlink_sendmsg+0x104f/0x1350 net/netlink/af_netlink.c:1901
[   27.961511]  sock_sendmsg_nosec net/socket.c:629 [inline]
[   27.961511]  sock_sendmsg net/socket.c:639 [inline]
[   27.961511]  ___sys_sendmsg+0xec8/0x1320 net/socket.c:2117
[   27.965548]  __sys_sendmsg net/socket.c:2155 [inline]
[   27.965548]  __do_sys_sendmsg net/socket.c:2164 [inline]
[   27.965548]  __se_sys_sendmsg net/socket.c:2162 [inline]
[   27.965548]  __x64_sys_sendmsg+0x331/0x460 net/socket.c:2162
[   27.969764]  do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
[   27.973634]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   27.978795] ==================================================================
[   27.986130] Disabling lock debugging due to kernel taint
[   27.991555] Kernel panic - not syncing: panic_on_warn set ...
[   27.991555] 
[   27.998898] CPU: 0 PID: 2168 Comm: startpar Tainted: G    B             4.17.0+ #3
[   28.006579] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   28.015910] Call Trace:
[   28.018473]  <IRQ>
[   28.020608]  __dump_stack lib/dump_stack.c:77 [inline]
[   28.020608]  dump_stack+0x185/0x1d0 lib/dump_stack.c:113
[   28.024222]  panic+0x3d0/0x990 kernel/panic.c:184
[   28.027405]  kmsan_report+0x29e/0x2a0 mm/kmsan/kmsan.c:1136
[   28.031186]  __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:620
[   28.035235]  receive_mergeable drivers/net/virtio_net.c:817 [inline]
[   28.035235]  receive_buf+0x324e/0x6ae0 drivers/net/virtio_net.c:917
[   28.039108]  virtnet_receive drivers/net/virtio_net.c:1200 [inline]
[   28.039108]  virtnet_poll+0xac2/0x1540 drivers/net/virtio_net.c:1286
[   28.042978]  ? refill_work+0x2c0/0x2c0 drivers/net/virtio_net.c:1187
[   28.046846]  napi_poll net/core/dev.c:5735 [inline]
[   28.046846]  net_rx_action+0x766/0x1a80 net/core/dev.c:5801
[   28.050800]  ? net_tx_action+0xad0/0xad0 net/core/dev.c:4289
[   28.054844]  __do_softirq+0x592/0x979 kernel/softirq.c:285
[   28.058636]  invoke_softirq kernel/softirq.c:365 [inline]
[   28.058636]  irq_exit+0x202/0x240 kernel/softirq.c:405
[   28.062083]  exiting_irq+0xe/0x10 arch/x86/include/asm/apic.h:525
[   28.065523]  do_IRQ+0x17d/0x1c0 arch/x86/kernel/irq.c:264
[   28.068781]  common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:642
[   28.072555]  </IRQ>
[   28.074776] RIP: 0010:msan_get_shadow_origin_ptr+0x7d/0x230 mm/kmsan/kmsan_instr.c:248
[   28.080462] RSP: 0018:ffff8801cbbff4a8 EFLAGS: 00000283 ORIG_RAX: ffffffffffffffd8
[   28.088148] RAX: ffff8801d8ae0000 RBX: ffffffff8b58c000 RCX: ffff880000000000
[   28.095399] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8801cbbff5d0
[   28.102649] RBP: ffff8801cbbff4d8 R08: 0000000001080001 R09: 0000000000000002
[   28.109914] R10: 0000000000000000 R11: ffffffff846d72d0 R12: ffff8801d9389aa0
[   28.117165] R13: ffff8801cbbff5d0 R14: ffffffff8b58b000 R15: ffff8801cbbff5d0
[   28.124427]  ? tty_read+0x6c0/0x6c0 drivers/tty/tty_io.c:828
[   28.128055]  __msan_metadata_ptr_for_store_8+0x13/0x20 mm/kmsan/kmsan_instr.c:321
[   28.133329]  klist_next+0x235/0x5e0 lib/klist.c:390
[   28.136940]  ? klist_class_dev_get+0x60/0x60 drivers/base/class.c:125
[   28.141329]  class_dev_iter_next drivers/base/class.c:304 [inline]
[   28.141329]  class_find_device+0x191/0x490 drivers/base/class.c:408
[   28.145544]  ? tty_read+0x6c0/0x6c0 drivers/tty/tty_io.c:828
[   28.149152]  tty_get_device drivers/tty/tty_io.c:2797 [inline]
[   28.149152]  alloc_tty_struct+0x902/0xc50 drivers/tty/tty_io.c:2844
[   28.153295]  tty_init_dev+0xd3/0x1020 drivers/tty/tty_io.c:1317
[   28.157081]  ? _cond_resched+0x3c/0xd0 kernel/sched/core.c:5002
[   28.160949]  ptmx_open+0x2bb/0x7c0 drivers/tty/pty.c:832
[   28.164470]  ? ptm_open_peer+0x440/0x440 drivers/tty/pty.c:641
[   28.168512]  chrdev_open+0xc25/0xd90 fs/char_dev.c:417
[   28.172947]  ? cd_forget+0x330/0x330 include/linux/compiler.h:224
[   28.176645]  do_dentry_open+0xccc/0x1440 fs/open.c:794
[   28.180689]  vfs_open+0x1b6/0x2f0 fs/open.c:908
[   28.184128]  do_last fs/namei.c:3365 [inline]
[   28.184128]  path_openat+0x4771/0x6640 fs/namei.c:3506
[   28.188003]  ? __msan_poison_alloca+0x15c/0x1d0 mm/kmsan/kmsan_instr.c:590
[   28.192676]  ? __alloc_fd+0x428/0xb20 fs/file.c:504
[   28.196489]  ? kmsan_set_origin_inline+0x6b/0x120 mm/kmsan/kmsan_instr.c:528
[   28.201352]  do_filp_open+0x261/0x640 fs/namei.c:3540
[   28.205181]  do_sys_open+0x624/0x960 fs/open.c:1101
[   28.208894]  ? syscall_return_slowpath+0xe9/0x710 arch/x86/entry/common.c:265
[   28.213729]  __do_sys_open fs/open.c:1119 [inline]
[   28.213729]  __se_sys_open fs/open.c:1114 [inline]
[   28.213729]  __x64_sys_open+0xf2/0x130 fs/open.c:1114
[   28.217600]  ? do_sys_open+0x960/0x960 include/linux/fsnotify.h:220
[   28.221468]  do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
[   28.225339]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   28.230518] RIP: 0033:0x7f37d7262120
[   28.234221] RSP: 002b:00007ffcdb496398 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
[   28.241930] RAX: ffffffffffffffda RBX: 000000000084e5d0 RCX: 00007f37d7262120
[   28.249195] RDX: 0000000000000080 RSI: 0000000000000102 RDI: 0000000000406c1d
[   28.256448] RBP: 0000000000000001 R08: 0000000000000000 R09: 00000000ffffffff
[   28.263700] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000002048
[   28.270963] R13: 000000000084e618 R14: 0000000000002000 R15: 00007f37d77346a8
[   28.278752] Dumping ftrace buffer:
[   28.282291]    (ftrace buffer empty)
[   28.285989] Kernel Offset: disabled
[   28.289596] Rebooting in 86400 seconds..