Copyright 2004-2011 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF[ 26.006251] ==================================================================
/eth0/42:01:0a:8[ 26.014235] BUG: KMSAN: uninit-value in receive_mergeable drivers/net/virtio_net.c:817 [inline]
/eth0/42:01:0a:8[ 26.014235] BUG: KMSAN: uninit-value in receive_buf+0x324e/0x6ae0 drivers/net/virtio_net.c:917
0:0a:17
[ 26.021847] CPU: 0 PID: 2165 Comm: startpar Not tainted 4.17.0+ #5
[ 26.028921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 26.038253] Call Trace:
[ 26.040814]
[ 26.042952] __dump_stack lib/dump_stack.c:77 [inline]
[ 26.042952] dump_stack+0x185/0x1d0 lib/dump_stack.c:113
[ 26.046559] kmsan_report+0x188/0x2a0 mm/kmsan/kmsan.c:1117
[ 26.050340] __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:620
[ 26.054384] receive_mergeable drivers/net/virtio_net.c:817 [inline]
[ 26.054384] receive_buf+0x324e/0x6ae0 drivers/net/virtio_net.c:917
[ 26.058258] virtnet_receive drivers/net/virtio_net.c:1200 [inline]
[ 26.058258] virtnet_poll+0xac2/0x1540 drivers/net/virtio_net.c:1286
[ 26.062127] ? refill_work+0x2c0/0x2c0 drivers/net/virtio_net.c:1187
[ 26.065996] napi_poll net/core/dev.c:5735 [inline]
[ 26.065996] net_rx_action+0x766/0x1a80 net/core/dev.c:5801
[ 26.069958] ? net_tx_action+0xad0/0xad0 net/core/dev.c:4289
[ 26.074001] __do_softirq+0x592/0x979 kernel/softirq.c:285
[ 26.077794] invoke_softirq kernel/softirq.c:365 [inline]
[ 26.077794] irq_exit+0x202/0x240 kernel/softirq.c:405
[ 26.081230] exiting_irq+0xe/0x10 arch/x86/include/asm/apic.h:525
[ 26.084664] do_IRQ+0x17d/0x1c0 arch/x86/kernel/irq.c:264
[ 26.087924] common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:642
[ 26.091699]
[ 26.093919] RIP: 0010:native_restore_fl arch/x86/include/asm/irqflags.h:37 [inline]
[ 26.093919] RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:78 [inline]
[ 26.093919] RIP: 0010:kmsan_kmalloc+0xc6/0x100 mm/kmsan/kmsan.c:317
[ 26.098475] RSP: 0018:ffff8801cbbbfb60 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffd8
[ 26.106161] RAX: 0000000000000246 RBX: ffff880197597000 RCX: 0000000000000401
[ 26.113409] RDX: 0000000000000400 RSI: ffffea00098c18e8 RDI: ffff880197597000
[ 26.120659] RBP: ffff8801cbbbfba0 R08: 00000000010000c0 R09: 0000000000000002
[ 26.127908] R10: 0000000000000002 R11: ffffffff81cd8d20 R12: ffff8801dba6d080
[ 26.135158] R13: ffff8801ceb0ba80 R14: 0000000000001000 R15: 00000000014000c0
[ 26.142418] ? __ia32_sys_fstat+0x2a0/0x2a0 fs/stat.c:270
[ 26.146724] kmsan_slab_alloc+0x10/0x20 mm/kmsan/kmsan.c:322
[ 26.150677] slab_post_alloc_hook mm/slab.h:446 [inline]
[ 26.150677] slab_alloc_node mm/slub.c:2753 [inline]
[ 26.150677] slab_alloc mm/slub.c:2761 [inline]
[ 26.150677] kmem_cache_alloc+0x68c/0xb70 mm/slub.c:2766
[ 26.154808] ? getname_flags+0x12a/0xaa0 fs/namei.c:140
[ 26.158851] getname_flags+0x12a/0xaa0 fs/namei.c:140
[ 26.162719] user_path_at_empty+0xbb/0x140 fs/namei.c:2555
[ 26.166935] ? __x64_sys_newstat+0x92/0xc0 fs/stat.c:333
[ 26.171159] user_path_at include/linux/namei.h:57 [inline]
[ 26.171159] vfs_statx fs/stat.c:185 [inline]
[ 26.171159] vfs_stat include/linux/fs.h:3078 [inline]
[ 26.171159] __do_sys_newstat fs/stat.c:337 [inline]
[ 26.171159] __se_sys_newstat+0xd4/0x330 fs/stat.c:333
[ 26.175199] ? syscall_return_slowpath+0xe9/0x710 arch/x86/entry/common.c:265
[ 26.180034] __x64_sys_newstat+0x92/0xc0 fs/stat.c:333
[ 26.184083] ? __ia32_sys_fstat+0x2a0/0x2a0 fs/stat.c:270
[ 26.188382] do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
[ 26.192254] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 26.197421] RIP: 0033:0x7f535bc28c65
[ 26.201113] RSP: 002b:00007fff503a6288 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
[ 26.208800] RAX: ffffffffffffffda RBX: ffffffffffffffa8 RCX: 00007f535bc28c65
[ 26.216055] RDX: 00007fff503a72f0 RSI: 00007fff503a72f0 RDI: 00007fff503a62f0
[ 26.223304] RBP: 00007fff503a62f0 R08: 00007f535bc9f7e0 R09: 000000000000c596
[ 26.230563] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
[ 26.237813] R13: 00007fff503a72f0 R14: 0000000000001000 R15: 0000000000000004
[ 26.245066]
[ 26.246672] Uninit was stored to memory at:
[ 26.250992] kmsan_save_stack_with_flags mm/kmsan/kmsan.c:279 [inline]
[ 26.250992] kmsan_save_stack mm/kmsan/kmsan.c:294 [inline]
[ 26.250992] kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:685
[ 26.256076] __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:464
[ 26.260287] receive_mergeable drivers/net/virtio_net.c:690 [inline]
[ 26.260287] receive_buf+0x2dbb/0x6ae0 drivers/net/virtio_net.c:917
[ 26.264151] virtnet_receive drivers/net/virtio_net.c:1200 [inline]
[ 26.264151] virtnet_poll+0xac2/0x1540 drivers/net/virtio_net.c:1286
[ 26.268024] napi_poll net/core/dev.c:5735 [inline]
[ 26.268024] net_rx_action+0x766/0x1a80 net/core/dev.c:5801
[ 26.271986] __do_softirq+0x592/0x979 kernel/softirq.c:285
[ 26.275762] Uninit was created at:
[ 26.279281] kmsan_save_stack_with_flags mm/kmsan/kmsan.c:279 [inline]
[ 26.279281] kmsan_alloc_meta_for_pages+0x161/0x3a0 mm/kmsan/kmsan.c:815
[ 26.284275] kmsan_alloc_page+0x82/0xe0 mm/kmsan/kmsan.c:885
[ 26.288228] __alloc_pages_nodemask+0xf7b/0x5cc0 mm/page_alloc.c:4402
[ 26.292960] alloc_pages_current+0x6b1/0x970 mm/mempolicy.c:2093
[ 26.297345] alloc_pages include/linux/gfp.h:494 [inline]
[ 26.297345] skb_page_frag_refill+0x3ba/0x5e0 net/core/sock.c:2211
[ 26.301817] add_recvbuf_mergeable drivers/net/virtio_net.c:1067 [inline]
[ 26.301817] try_fill_recv+0x3d5/0x2580 drivers/net/virtio_net.c:1108
[ 26.305776] virtnet_open+0x188/0x600 drivers/net/virtio_net.c:1311
[ 26.309557] __dev_open+0x613/0x840 net/core/dev.c:1392
[ 26.313162] __dev_change_flags+0x401/0xb60 net/core/dev.c:6955
[ 26.317460] dev_change_flags+0xca/0x230 net/core/dev.c:7024
[ 26.321497] do_setlink+0x165b/0x6010 net/core/rtnetlink.c:2362
[ 26.325273] rtnl_newlink+0x2b33/0x37a0 net/core/rtnetlink.c:2970
[ 26.329225] rtnetlink_rcv_msg+0xa44/0x1570 net/core/rtnetlink.c:4646
[ 26.333523] netlink_rcv_skb+0x37e/0x600 net/netlink/af_netlink.c:2448
[ 26.337560] rtnetlink_rcv+0x50/0x60 net/core/rtnetlink.c:4664
[ 26.341249] netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline]
[ 26.341249] netlink_unicast+0x1680/0x1750 net/netlink/af_netlink.c:1336
[ 26.345462] netlink_sendmsg+0x104f/0x1350 net/netlink/af_netlink.c:1901
[ 26.349675] sock_sendmsg_nosec net/socket.c:629 [inline]
[ 26.349675] sock_sendmsg net/socket.c:639 [inline]
[ 26.349675] ___sys_sendmsg+0xec8/0x1320 net/socket.c:2117
[ 26.353715] __sys_sendmsg net/socket.c:2155 [inline]
[ 26.353715] __do_sys_sendmsg net/socket.c:2164 [inline]
[ 26.353715] __se_sys_sendmsg net/socket.c:2162 [inline]
[ 26.353715] __x64_sys_sendmsg+0x331/0x460 net/socket.c:2162
[ 26.357927] do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
[ 26.361805] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 26.366968] ==================================================================
[ 26.374942] Disabling lock debugging due to kernel taint
[ 26.380387] Kernel panic - not syncing: panic_on_warn set ...
[ 26.380387]
[ 26.387757] CPU: 0 PID: 2165 Comm: startpar Tainted: G B 4.17.0+ #5
[ 26.395454] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 26.404788] Call Trace:
[ 26.407362]
[ 26.409499] __dump_stack lib/dump_stack.c:77 [inline]
[ 26.409499] dump_stack+0x185/0x1d0 lib/dump_stack.c:113
[ 26.413107] panic+0x3d0/0x990 kernel/panic.c:184
[ 26.416284] kmsan_report+0x29e/0x2a0 mm/kmsan/kmsan.c:1136
[ 26.420065] __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:620
[ 26.424110] receive_mergeable drivers/net/virtio_net.c:817 [inline]
[ 26.424110] receive_buf+0x324e/0x6ae0 drivers/net/virtio_net.c:917
[ 26.427983] virtnet_receive drivers/net/virtio_net.c:1200 [inline]
[ 26.427983] virtnet_poll+0xac2/0x1540 drivers/net/virtio_net.c:1286
[ 26.431853] ? refill_work+0x2c0/0x2c0 drivers/net/virtio_net.c:1187
[ 26.435720] napi_poll net/core/dev.c:5735 [inline]
[ 26.435720] net_rx_action+0x766/0x1a80 net/core/dev.c:5801
[ 26.439687] ? net_tx_action+0xad0/0xad0 net/core/dev.c:4289
[ 26.443746] __do_softirq+0x592/0x979 kernel/softirq.c:285
[ 26.447557] invoke_softirq kernel/softirq.c:365 [inline]
[ 26.447557] irq_exit+0x202/0x240 kernel/softirq.c:405
[ 26.451019] exiting_irq+0xe/0x10 arch/x86/include/asm/apic.h:525
[ 26.454479] do_IRQ+0x17d/0x1c0 arch/x86/kernel/irq.c:264
[ 26.457763] common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:642
[ 26.461552]
[ 26.463788] RIP: 0010:native_restore_fl arch/x86/include/asm/irqflags.h:37 [inline]
[ 26.463788] RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:78 [inline]
[ 26.463788] RIP: 0010:kmsan_kmalloc+0xc6/0x100 mm/kmsan/kmsan.c:317
[ 26.468344] RSP: 0018:ffff8801cbbbfb60 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffd8
[ 26.476039] RAX: 0000000000000246 RBX: ffff880197597000 RCX: 0000000000000401
[ 26.483310] RDX: 0000000000000400 RSI: ffffea00098c18e8 RDI: ffff880197597000
[ 26.490559] RBP: ffff8801cbbbfba0 R08: 00000000010000c0 R09: 0000000000000002
[ 26.497810] R10: 0000000000000002 R11: ffffffff81cd8d20 R12: ffff8801dba6d080
[ 26.505059] R13: ffff8801ceb0ba80 R14: 0000000000001000 R15: 00000000014000c0
[ 26.512334] ? __ia32_sys_fstat+0x2a0/0x2a0 fs/stat.c:270
[ 26.516646] kmsan_slab_alloc+0x10/0x20 mm/kmsan/kmsan.c:322
[ 26.520597] slab_post_alloc_hook mm/slab.h:446 [inline]
[ 26.520597] slab_alloc_node mm/slub.c:2753 [inline]
[ 26.520597] slab_alloc mm/slub.c:2761 [inline]
[ 26.520597] kmem_cache_alloc+0x68c/0xb70 mm/slub.c:2766
[ 26.524726] ? getname_flags+0x12a/0xaa0 fs/namei.c:140
[ 26.528768] getname_flags+0x12a/0xaa0 fs/namei.c:140
[ 26.532642] user_path_at_empty+0xbb/0x140 fs/namei.c:2555
[ 26.536857] ? __x64_sys_newstat+0x92/0xc0 fs/stat.c:333
[ 26.541069] user_path_at include/linux/namei.h:57 [inline]
[ 26.541069] vfs_statx fs/stat.c:185 [inline]
[ 26.541069] vfs_stat include/linux/fs.h:3078 [inline]
[ 26.541069] __do_sys_newstat fs/stat.c:337 [inline]
[ 26.541069] __se_sys_newstat+0xd4/0x330 fs/stat.c:333
[ 26.545110] ? syscall_return_slowpath+0xe9/0x710 arch/x86/entry/common.c:265
[ 26.549932] __x64_sys_newstat+0x92/0xc0 fs/stat.c:333
[ 26.553970] ? __ia32_sys_fstat+0x2a0/0x2a0 fs/stat.c:270
[ 26.558268] do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
[ 26.562139] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 26.567306] RIP: 0033:0x7f535bc28c65
[ 26.570995] RSP: 002b:00007fff503a6288 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
[ 26.578687] RAX: ffffffffffffffda RBX: ffffffffffffffa8 RCX: 00007f535bc28c65
[ 26.585935] RDX: 00007fff503a72f0 RSI: 00007fff503a72f0 RDI: 00007fff503a62f0
[ 26.593186] RBP: 00007fff503a62f0 R08: 00007f535bc9f7e0 R09: 000000000000c596
[ 26.600436] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
[ 26.607684] R13: 00007fff503a72f0 R14: 0000000000001000 R15: 0000000000000004
[ 26.615502] Dumping ftrace buffer:
[ 26.619019] (ftrace buffer empty)
[ 26.622705] Kernel Offset: disabled
[ 26.626308] Rebooting in 86400 seconds..