All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/eth0/42:01:0a:8[ 26.310336] ==================================================================
0:0a:2c
Sending[ 26.318464] BUG: KMSAN: uninit-value in receive_mergeable drivers/net/virtio_net.c:817 [inline]
Sending[ 26.318464] BUG: KMSAN: uninit-value in receive_buf+0x324e/0x6ae0 drivers/net/virtio_net.c:917
on LPF/eth0/4[ 26.326067] CPU: 0 PID: 2165 Comm: startpar Not tainted 4.17.0+ #4
[ 26.333752] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
2:01:0a:80:0a:2c[ 26.343095] Call Trace:
[ 26.347041]
Sending on S[ 26.349189] __dump_stack lib/dump_stack.c:77 [inline]
Sending on S[ 26.349189] dump_stack+0x185/0x1d0 lib/dump_stack.c:113
ocket/fallback
[ 26.354175] kmsan_report+0x188/0x2a0 mm/kmsan/kmsan.c:1117
DHCPDISCOVER on [ 26.359347] __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:620
eth0 to 255.255.[ 26.364784] receive_mergeable drivers/net/virtio_net.c:817 [inline]
eth0 to 255.255.[ 26.364784] receive_buf+0x324e/0x6ae0 drivers/net/virtio_net.c:917
255.255 port 67 [ 26.370066] virtnet_receive drivers/net/virtio_net.c:1200 [inline]
255.255 port 67 [ 26.370066] virtnet_poll+0xac2/0x1540 drivers/net/virtio_net.c:1286
interval 4
[ 26.375322] ? kmsan_set_origin_inline+0x6b/0x120 mm/kmsan/kmsan_instr.c:528
[ 26.381183] ? refill_work+0x2c0/0x2c0 drivers/net/virtio_net.c:1187
[ 26.385063] napi_poll net/core/dev.c:5735 [inline]
[ 26.385063] net_rx_action+0x766/0x1a80 net/core/dev.c:5801
[ 26.389088] ? net_tx_action+0xad0/0xad0 net/core/dev.c:4289
[ 26.393142] __do_softirq+0x592/0x979 kernel/softirq.c:285
[ 26.396926] invoke_softirq kernel/softirq.c:365 [inline]
[ 26.396926] irq_exit+0x202/0x240 kernel/softirq.c:405
[ 26.400362] exiting_irq+0xe/0x10 arch/x86/include/asm/apic.h:525
[ 26.403794] smp_apic_timer_interrupt+0x64/0x90 arch/x86/kernel/apic/apic.c:1055
[ 26.408458] apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:863
[ 26.412669]
[ 26.414915] RIP: 0010:__msan_poison_alloca+0x8/0x1d0 mm/kmsan/kmsan_instr.c:543
[ 26.419992] RSP: 0018:ffff8801cb46f2f0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 26.427693] RAX: 0000000082800067 RBX: ffff8801cb46f378 RCX: ffffffff89f9b9b8
[ 26.434945] RDX: ffffffff8b01d280 RSI: 0000000000000008 RDI: ffff8801cb46f378
[ 26.442200] RBP: ffff8801cb46f300 R08: 0000000000000000 R09: 0000000000000000
[ 26.449459] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 26.456712] R13: 0000000000000000 R14: ffff8801cb46f4a0 R15: ffffffff8a95f60b
[ 26.463975] ? vsnprintf+0x288/0x33c0 lib/vsprintf.c:2248
[ 26.467758] format_decode+0x5b/0x1a50 lib/vsprintf.c:2006
[ 26.471624] ? __msan_poison_alloca+0x15c/0x1d0 mm/kmsan/kmsan_instr.c:590
[ 26.476280] ? sprintf+0x207/0x240 lib/vsprintf.c:2498
[ 26.479807] ? vsnprintf+0x99/0x33c0 lib/vsprintf.c:2227
[ 26.483515] ? sprintf+0x207/0x240 lib/vsprintf.c:2498
[ 26.487041] vsnprintf+0x288/0x33c0 lib/vsprintf.c:2248
[ 26.490656] ? kmsan_set_origin_inline+0x6b/0x120 mm/kmsan/kmsan_instr.c:528
[ 26.495481] ? tty_line_name drivers/tty/tty_io.c:1137 [inline]
[ 26.495481] ? alloc_tty_struct+0x789/0xc50 drivers/tty/tty_io.c:2843
[ 26.499782] ? encode_attrs+0x7a7/0x1990 fs/nfs/nfs4xdr.c:1110
[ 26.503822] sprintf+0x207/0x240 lib/vsprintf.c:2498
[ 26.507173] tty_line_name drivers/tty/tty_io.c:1137 [inline]
[ 26.507173] alloc_tty_struct+0x789/0xc50 drivers/tty/tty_io.c:2843
[ 26.511309] ? try_module_get+0x61/0x3d0 kernel/module.c:1115
[ 26.515348] tty_init_dev+0xd3/0x1020 drivers/tty/tty_io.c:1317
[ 26.519126] ? _cond_resched+0x3c/0xd0 kernel/sched/core.c:5002
[ 26.522994] ptmx_open+0x2bb/0x7c0 drivers/tty/pty.c:832
[ 26.526526] ? ptm_open_peer+0x440/0x440 drivers/tty/pty.c:641
[ 26.530579] chrdev_open+0xc25/0xd90 fs/char_dev.c:417
[ 26.534300] ? cd_forget+0x330/0x330 include/linux/compiler.h:224
[ 26.537995] do_dentry_open+0xccc/0x1440 fs/open.c:794
[ 26.542053] vfs_open+0x1b6/0x2f0 fs/open.c:908
[ 26.545490] do_last fs/namei.c:3365 [inline]
[ 26.545490] path_openat+0x4771/0x6640 fs/namei.c:3506
[ 26.549369] ? tty_ldisc_deref+0x25/0x70 drivers/tty/tty_ldisc.c:315
[ 26.553423] ? __msan_poison_alloca+0x15c/0x1d0 mm/kmsan/kmsan_instr.c:590
[ 26.558074] ? __alloc_fd+0x428/0xb20 fs/file.c:504
[ 26.561856] ? kmsan_set_origin_inline+0x6b/0x120 mm/kmsan/kmsan_instr.c:528
[ 26.566686] do_filp_open+0x261/0x640 fs/namei.c:3540
[ 26.570481] do_sys_open+0x624/0x960 fs/open.c:1101
[ 26.574177] ? syscall_return_slowpath+0xe9/0x710 arch/x86/entry/common.c:265
[ 26.579006] __do_sys_open fs/open.c:1119 [inline]
[ 26.579006] __se_sys_open fs/open.c:1114 [inline]
[ 26.579006] __x64_sys_open+0xf2/0x130 fs/open.c:1114
[ 26.582881] ? do_sys_open+0x960/0x960 include/linux/fsnotify.h:220
[ 26.586748] do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
[ 26.590626] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 26.595793] RIP: 0033:0x7f9db8c33120
[ 26.599481] RSP: 002b:00007fffb9fb1428 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
[ 26.607168] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9db8c33120
[ 26.614424] RDX: 0000000000000000 RSI: 0000000000000102 RDI: 0000000000406c1d
[ 26.621673] RBP: 0000000000e48690 R08: 0000000000000001 R09: 000000000000c570
[ 26.628922] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000e48690
[ 26.636171] R13: 0000000000000001 R14: 0000000000002048 R15: 000000005b200ad0
[ 26.643429]
[ 26.645037] Uninit was stored to memory at:
[ 26.649349] kmsan_save_stack_with_flags mm/kmsan/kmsan.c:279 [inline]
[ 26.649349] kmsan_save_stack mm/kmsan/kmsan.c:294 [inline]
[ 26.649349] kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:685
[ 26.654430] __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:464
[ 26.658646] receive_mergeable drivers/net/virtio_net.c:690 [inline]
[ 26.658646] receive_buf+0x2dbb/0x6ae0 drivers/net/virtio_net.c:917
[ 26.662511] virtnet_receive drivers/net/virtio_net.c:1200 [inline]
[ 26.662511] virtnet_poll+0xac2/0x1540 drivers/net/virtio_net.c:1286
[ 26.666378] napi_poll net/core/dev.c:5735 [inline]
[ 26.666378] net_rx_action+0x766/0x1a80 net/core/dev.c:5801
[ 26.670340] __do_softirq+0x592/0x979 kernel/softirq.c:285
[ 26.674115] Uninit was created at:
[ 26.677643] kmsan_save_stack_with_flags mm/kmsan/kmsan.c:279 [inline]
[ 26.677643] kmsan_alloc_meta_for_pages+0x161/0x3a0 mm/kmsan/kmsan.c:815
[ 26.682647] kmsan_alloc_page+0x82/0xe0 mm/kmsan/kmsan.c:885
[ 26.686605] __alloc_pages_nodemask+0xf7b/0x5cc0 mm/page_alloc.c:4402
[ 26.691340] alloc_pages_current+0x6b1/0x970 mm/mempolicy.c:2093
[ 26.695741] alloc_pages include/linux/gfp.h:494 [inline]
[ 26.695741] skb_page_frag_refill+0x3ba/0x5e0 net/core/sock.c:2211
[ 26.700223] add_recvbuf_mergeable drivers/net/virtio_net.c:1067 [inline]
[ 26.700223] try_fill_recv+0x3d5/0x2580 drivers/net/virtio_net.c:1108
[ 26.704184] virtnet_open+0x188/0x600 drivers/net/virtio_net.c:1311
[ 26.707967] __dev_open+0x613/0x840 net/core/dev.c:1392
[ 26.711576] __dev_change_flags+0x401/0xb60 net/core/dev.c:6955
[ 26.715885] dev_change_flags+0xca/0x230 net/core/dev.c:7024
[ 26.719926] do_setlink+0x165b/0x6010 net/core/rtnetlink.c:2362
[ 26.723705] rtnl_newlink+0x2b33/0x37a0 net/core/rtnetlink.c:2970
[ 26.727666] rtnetlink_rcv_msg+0xa44/0x1570 net/core/rtnetlink.c:4646
[ 26.731966] netlink_rcv_skb+0x37e/0x600 net/netlink/af_netlink.c:2448
[ 26.736009] rtnetlink_rcv+0x50/0x60 net/core/rtnetlink.c:4664
[ 26.739708] netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline]
[ 26.739708] netlink_unicast+0x1680/0x1750 net/netlink/af_netlink.c:1336
[ 26.743922] netlink_sendmsg+0x104f/0x1350 net/netlink/af_netlink.c:1901
[ 26.748137] sock_sendmsg_nosec net/socket.c:629 [inline]
[ 26.748137] sock_sendmsg net/socket.c:639 [inline]
[ 26.748137] ___sys_sendmsg+0xec8/0x1320 net/socket.c:2117
[ 26.752175] __sys_sendmsg net/socket.c:2155 [inline]
[ 26.752175] __do_sys_sendmsg net/socket.c:2164 [inline]
[ 26.752175] __se_sys_sendmsg net/socket.c:2162 [inline]
[ 26.752175] __x64_sys_sendmsg+0x331/0x460 net/socket.c:2162
[ 26.756390] do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
[ 26.760268] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 26.765431] ==================================================================
[ 26.772764] Disabling lock debugging due to kernel taint
[ 26.778190] Kernel panic - not syncing: panic_on_warn set ...
[ 26.778190]
[ 26.785533] CPU: 0 PID: 2165 Comm: startpar Tainted: G B 4.17.0+ #4
[ 26.793217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 26.802557] Call Trace:
[ 26.805118]
[ 26.807262] __dump_stack lib/dump_stack.c:77 [inline]
[ 26.807262] dump_stack+0x185/0x1d0 lib/dump_stack.c:113
[ 26.810880] panic+0x3d0/0x990 kernel/panic.c:184
[ 26.814065] kmsan_report+0x29e/0x2a0 mm/kmsan/kmsan.c:1136
[ 26.817846] __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:620
[ 26.821887] receive_mergeable drivers/net/virtio_net.c:817 [inline]
[ 26.821887] receive_buf+0x324e/0x6ae0 drivers/net/virtio_net.c:917
[ 26.825760] virtnet_receive drivers/net/virtio_net.c:1200 [inline]
[ 26.825760] virtnet_poll+0xac2/0x1540 drivers/net/virtio_net.c:1286
[ 26.829630] ? kmsan_set_origin_inline+0x6b/0x120 mm/kmsan/kmsan_instr.c:528
[ 26.834452] ? refill_work+0x2c0/0x2c0 drivers/net/virtio_net.c:1187
[ 26.838323] napi_poll net/core/dev.c:5735 [inline]
[ 26.838323] net_rx_action+0x766/0x1a80 net/core/dev.c:5801
[ 26.842278] ? net_tx_action+0xad0/0xad0 net/core/dev.c:4289
[ 26.846318] __do_softirq+0x592/0x979 kernel/softirq.c:285
[ 26.850108] invoke_softirq kernel/softirq.c:365 [inline]
[ 26.850108] irq_exit+0x202/0x240 kernel/softirq.c:405
[ 26.853541] exiting_irq+0xe/0x10 arch/x86/include/asm/apic.h:525
[ 26.856974] smp_apic_timer_interrupt+0x64/0x90 arch/x86/kernel/apic/apic.c:1055
[ 26.861619] apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:863
[ 26.865829]
[ 26.868053] RIP: 0010:__msan_poison_alloca+0x8/0x1d0 mm/kmsan/kmsan_instr.c:543
[ 26.873143] RSP: 0018:ffff8801cb46f2f0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 26.880831] RAX: 0000000082800067 RBX: ffff8801cb46f378 RCX: ffffffff89f9b9b8
[ 26.888080] RDX: ffffffff8b01d280 RSI: 0000000000000008 RDI: ffff8801cb46f378
[ 26.895327] RBP: ffff8801cb46f300 R08: 0000000000000000 R09: 0000000000000000
[ 26.902575] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 26.909824] R13: 0000000000000000 R14: ffff8801cb46f4a0 R15: ffffffff8a95f60b
[ 26.917096] ? vsnprintf+0x288/0x33c0 lib/vsprintf.c:2248
[ 26.920880] format_decode+0x5b/0x1a50 lib/vsprintf.c:2006
[ 26.924747] ? __msan_poison_alloca+0x15c/0x1d0 mm/kmsan/kmsan_instr.c:590
[ 26.929424] ? sprintf+0x207/0x240 lib/vsprintf.c:2498
[ 26.932944] ? vsnprintf+0x99/0x33c0 lib/vsprintf.c:2227
[ 26.936644] ? sprintf+0x207/0x240 lib/vsprintf.c:2498
[ 26.940163] vsnprintf+0x288/0x33c0 lib/vsprintf.c:2248
[ 26.943772] ? kmsan_set_origin_inline+0x6b/0x120 mm/kmsan/kmsan_instr.c:528
[ 26.948605] ? tty_line_name drivers/tty/tty_io.c:1137 [inline]
[ 26.948605] ? alloc_tty_struct+0x789/0xc50 drivers/tty/tty_io.c:2843
[ 26.952908] ? encode_attrs+0x7a7/0x1990 fs/nfs/nfs4xdr.c:1110
[ 26.956959] sprintf+0x207/0x240 lib/vsprintf.c:2498
[ 26.960319] tty_line_name drivers/tty/tty_io.c:1137 [inline]
[ 26.960319] alloc_tty_struct+0x789/0xc50 drivers/tty/tty_io.c:2843
[ 26.964450] ? try_module_get+0x61/0x3d0 kernel/module.c:1115
[ 26.968502] tty_init_dev+0xd3/0x1020 drivers/tty/tty_io.c:1317
[ 26.972314] ? _cond_resched+0x3c/0xd0 kernel/sched/core.c:5002
[ 26.976181] ptmx_open+0x2bb/0x7c0 drivers/tty/pty.c:832
[ 26.979715] ? ptm_open_peer+0x440/0x440 drivers/tty/pty.c:641
[ 26.983759] chrdev_open+0xc25/0xd90 fs/char_dev.c:417
[ 26.987452] ? cd_forget+0x330/0x330 include/linux/compiler.h:224
[ 26.991149] do_dentry_open+0xccc/0x1440 fs/open.c:794
[ 26.995191] vfs_open+0x1b6/0x2f0 fs/open.c:908
[ 26.998628] do_last fs/namei.c:3365 [inline]
[ 26.998628] path_openat+0x4771/0x6640 fs/namei.c:3506
[ 27.002497] ? tty_ldisc_deref+0x25/0x70 drivers/tty/tty_ldisc.c:315
[ 27.006541] ? __msan_poison_alloca+0x15c/0x1d0 mm/kmsan/kmsan_instr.c:590
[ 27.011190] ? __alloc_fd+0x428/0xb20 fs/file.c:504
[ 27.014970] ? kmsan_set_origin_inline+0x6b/0x120 mm/kmsan/kmsan_instr.c:528
[ 27.019796] do_filp_open+0x261/0x640 fs/namei.c:3540
[ 27.023579] do_sys_open+0x624/0x960 fs/open.c:1101
[ 27.027270] ? syscall_return_slowpath+0xe9/0x710 arch/x86/entry/common.c:265
[ 27.032100] __do_sys_open fs/open.c:1119 [inline]
[ 27.032100] __se_sys_open fs/open.c:1114 [inline]
[ 27.032100] __x64_sys_open+0xf2/0x130 fs/open.c:1114
[ 27.035966] ? do_sys_open+0x960/0x960 include/linux/fsnotify.h:220
[ 27.039832] do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
[ 27.043709] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 27.048876] RIP: 0033:0x7f9db8c33120
[ 27.052575] RSP: 002b:00007fffb9fb1428 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
[ 27.060261] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9db8c33120
[ 27.067510] RDX: 0000000000000000 RSI: 0000000000000102 RDI: 0000000000406c1d
[ 27.074758] RBP: 0000000000e48690 R08: 0000000000000001 R09: 000000000000c570
[ 27.082012] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000e48690
[ 27.089271] R13: 0000000000000001 R14: 0000000000002048 R15: 000000005b200ad0
[ 27.097139] Dumping ftrace buffer:
[ 27.100664] (ftrace buffer empty)
[ 27.104349] Kernel Offset: disabled
[ 27.107964] Rebooting in 86400 seconds..