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Message-Id: <20210813.081908.1574714532738245424.ryutaroh@ict.e.titech.ac.jp>
Date: Fri, 13 Aug 2021 08:19:08 +0900 (JST)
From: Ryutaroh Matsumoto <ryutaroh@....e.titech.ac.jp>
To: davem@...emloft.net, yoshfuji@...ux-ipv6.org, dsahern@...nel.org,
netdev@...r.kernel.org
Subject: 5.14-rc5: UBSAN: object-size-mismatch in
./include/net/flow.h:197:33
Dear kernel network developers,
It is my first time to see UBSAN from kernel, so I do not know how and where to
report it. I hope here is the right place. I self-build linux 5.14rc5 (the plain upstream
kernel) and run it on Rapsberry Pi4B. Then I got the following UBSAN warnings:
[ 185.641264] UBSAN: object-size-mismatch in ./include/net/flow.h:197:33
[ 185.648154] member access within address 00000000243f3831 with insufficient space
[ 185.655960] for an object of type 'struct flowi'
[ 185.660727] CPU: 0 PID: 561 Comm: systemd-resolve Tainted: G C 5.14.0-rc5-clang12almostdebian #1
[ 185.671073] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT)
[ 185.677049] Call trace:
[ 185.679553] __typeid__ZTSFiP11task_structPK11user_regsetjjPKvS5_E_global_addr+0x30/0x38
[ 185.687862] dump_stack_lvl+0x8c/0x128
[ 185.691708] dump_stack+0x18/0x24
[ 185.695106] ubsan_type_mismatch_common+0x198/0x2a4
[ 185.700106] __ubsan_handle_type_mismatch_v1+0x40/0x50
[ 185.705371] udp_sendmsg+0x9c4/0x115c
[ 185.709126] inet_sendmsg+0x64/0xac
[ 185.712701] ____sys_sendmsg+0x264/0x3b0
[ 185.716723] __sys_sendmsg+0x128/0x198
[ 185.720565] __arm64_sys_sendmsg+0x2c/0x38
[ 185.724764] invoke_syscall+0xac/0x160
[ 185.728606] el0_svc_common+0x98/0x104
[ 185.732447] do_el0_svc+0x30/0x7c
[ 185.735843] el0_svc+0x34/0x128
[ 185.739063] el0t_64_sync_handler+0x6c/0xb0
[ 185.743350] el0t_64_sync+0x150/0x154
[ 185.747295] ================================================================================
[ 185.756145] ================================================================================
[ 185.756157] UBSAN: object-size-mismatch in ./include/net/flow.h:197:33
[ 185.756168] member access within address 00000000243f3831 with insufficient space
[ 185.756176] for an object of type 'union (anonymous union at ./include/net/flow.h:172:2)'
[ 185.756182] CPU: 0 PID: 561 Comm: systemd-resolve Tainted: G C 5.14.0-rc5-clang12almostdebian #1
[ 185.756191] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT)
[ 185.756197] Call trace:
[ 185.756201] __typeid__ZTSFiP11task_structPK11user_regsetjjPKvS5_E_global_addr+0x30/0x38
[ 185.756222] dump_stack_lvl+0x8c/0x128
[ 185.756233] dump_stack+0x18/0x24
[ 185.756240] ubsan_type_mismatch_common+0x198/0x2a4
[ 185.826926] __ubsan_handle_type_mismatch_v1+0x40/0x50
[ 185.832195] udp_sendmsg+0x9d4/0x115c
[ 185.835951] inet_sendmsg+0x64/0xac
[ 185.839526] ____sys_sendmsg+0x264/0x3b0
[ 185.843548] __sys_sendmsg+0x128/0x198
[ 185.847390] __arm64_sys_sendmsg+0x2c/0x38
[ 185.851588] invoke_syscall+0xac/0x160
[ 185.855431] el0_svc_common+0x98/0x104
[ 185.859272] do_el0_svc+0x30/0x7c
[ 185.862668] el0_svc+0x34/0x128
[ 185.865888] el0t_64_sync_handler+0x6c/0xb0
[ 185.870175] el0t_64_sync+0x150/0x154
[ 185.875201] ================================================================================
[ 185.884561] ================================================================================
[ 185.893845] UBSAN: object-size-mismatch in ./include/net/flow.h:197:33
[ 185.900566] member access within address 000000007d6cb106 with insufficient space
[ 185.908302] for an object of type 'struct flowi'
[ 185.913139] CPU: 0 PID: 530 Comm: irq/61-eth0 Tainted: G C 5.14.0-rc5-clang12almostdebian #1
[ 185.923143] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT)
[ 185.929122] Call trace:
[ 185.931632] __typeid__ZTSFiP11task_structPK11user_regsetjjPKvS5_E_global_addr+0x30/0x38
[ 185.939954] dump_stack_lvl+0x8c/0x128
[ 185.943816] dump_stack+0x18/0x24
[ 185.947235] ubsan_type_mismatch_common+0x198/0x2a4
[ 185.952246] __ubsan_handle_type_mismatch_v1+0x40/0x50
[ 185.957523] ip_send_unicast_reply+0x240/0x594
[ 185.962084] tcp_v4_send_reset+0x5a8/0x768
[ 185.966285] tcp_v4_rcv+0xf38/0x13d0
[ 185.969950] ip_protocol_deliver_rcu+0x148/0x2fc
[ 185.974682] ip_local_deliver_finish+0x88/0xe8
[ 185.979235] ip_local_deliver+0x1b4/0x23c
[ 185.983342] ip_sublist_rcv_finish+0x9c/0xe8
[ 185.987717] ip_sublist_rcv+0x224/0x308
[ 185.991646] ip_list_rcv+0x120/0x164
[ 185.995308] __netif_receive_skb_list_core+0x230/0x324
[ 186.000576] __netif_receive_skb_list+0x194/0x230
[ 186.005397] netif_receive_skb_list_internal+0x128/0x204
[ 186.010841] napi_complete_done+0xcc/0x1fc
[ 186.015040] bcmgenet_rx_poll+0x5c/0x124
[ 186.019062] __napi_poll+0x60/0x1f8
[ 186.022638] net_rx_action+0x198/0x468
[ 186.026481] __do_softirq+0x16c/0x42c
[ 186.030235] do_softirq+0xcc/0x134
[ 186.033723] __local_bh_enable_ip+0xc8/0x100
[ 186.038099] local_bh_enable.6846+0x14/0x20
[ 186.042388] irq_forced_thread_fn+0x9c/0xf0
[ 186.046676] irq_thread+0x26c/0x4b8
[ 186.050251] kthread+0x2c8/0x338
[ 186.053559] ret_from_fork+0x10/0x18
[ 186.057311] ================================================================================
[ 186.066065] ================================================================================
[ 186.074780] UBSAN: object-size-mismatch in ./include/net/flow.h:197:33
[ 186.081499] member access within address 000000007d6cb106 with insufficient space
[ 186.089242] for an object of type 'union (anonymous union at ./include/net/flow.h:172:2)'
[ 186.097700] CPU: 0 PID: 530 Comm: irq/61-eth0 Tainted: G C 5.14.0-rc5-clang12almostdebian #1
[ 186.107696] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT)
[ 186.113672] Call trace:
[ 186.116176] __typeid__ZTSFiP11task_structPK11user_regsetjjPKvS5_E_global_addr+0x30/0x38
[ 186.124482] dump_stack_lvl+0x8c/0x128
[ 186.128328] dump_stack+0x18/0x24
[ 186.131727] ubsan_type_mismatch_common+0x198/0x2a4
[ 186.136726] __ubsan_handle_type_mismatch_v1+0x40/0x50
[ 186.141991] ip_send_unicast_reply+0x250/0x594
[ 186.146546] tcp_v4_send_reset+0x5a8/0x768
[ 186.150747] tcp_v4_rcv+0xf38/0x13d0
[ 186.154411] ip_protocol_deliver_rcu+0x148/0x2fc
[ 186.159143] ip_local_deliver_finish+0x88/0xe8
[ 186.163696] ip_local_deliver+0x1b4/0x23c
[ 186.167803] ip_sublist_rcv_finish+0x9c/0xe8
[ 186.172178] ip_sublist_rcv+0x224/0x308
[ 186.176107] ip_list_rcv+0x120/0x164
[ 186.179770] __netif_receive_skb_list_core+0x230/0x324
[ 186.185040] __netif_receive_skb_list+0x194/0x230
[ 186.189863] netif_receive_skb_list_internal+0x128/0x204
[ 186.195307] napi_complete_done+0xcc/0x1fc
[ 186.199505] bcmgenet_rx_poll+0x5c/0x124
[ 186.203527] __napi_poll+0x60/0x1f8
[ 186.207103] net_rx_action+0x198/0x468
[ 186.210947] __do_softirq+0x16c/0x42c
[ 186.214700] do_softirq+0xcc/0x134
[ 186.218187] __local_bh_enable_ip+0xc8/0x100
[ 186.222562] local_bh_enable.6846+0x14/0x20
[ 186.226851] irq_forced_thread_fn+0x9c/0xf0
[ 186.231139] irq_thread+0x26c/0x4b8
[ 186.234713] kthread+0x2c8/0x338
[ 186.238021] ret_from_fork+0x10/0x18
[ 186.241759] ================================================================================
[ 186.364567] ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
[ 186.371715] ================================================================================
[ 186.380601] UBSAN: object-size-mismatch in ./include/net/flow.h:197:33
[ 186.380617] member access within address 000000009aa2bab1 with insufficient space
[ 186.380625] for an object of type 'struct flowi'
[ 186.380632] CPU: 0 PID: 530 Comm: irq/61-eth0 Tainted: G C 5.14.0-rc5-clang12almostdebian #1
[ 186.409713] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT)
[ 186.415691] Call trace:
[ 186.418196] __typeid__ZTSFiP11task_structPK11user_regsetjjPKvS5_E_global_addr+0x30/0x38
[ 186.426504] dump_stack_lvl+0x8c/0x128
[ 186.430351] dump_stack+0x18/0x24
[ 186.433748] ubsan_type_mismatch_common+0x198/0x2a4
[ 186.438747] __ubsan_handle_type_mismatch_v1+0x40/0x50
[ 186.444014] __icmp_send+0x558/0xef0
[ 186.447680] ipv4_link_failure+0x134/0x214
[ 186.451878] ip6_tnl_xmit+0x96c/0x1190
[ 186.455720] ip6_tnl_start_xmit+0x4c4/0x52c
[ 186.460006] dev_hard_start_xmit+0x128/0x220
[ 186.464383] __dev_queue_xmit+0x6ac/0xd38
[ 186.468491] neigh_connected_output+0x13c/0x188
[ 186.473133] ip_finish_output2+0x300/0x860
[ 186.477331] __ip_finish_output+0x10c/0x1e8
[ 186.481617] ip_finish_output+0x58/0x124
[ 186.485636] ip_output+0x138/0x3f8
[ 186.489120] ip_forward_finish+0xd4/0x140
[ 186.493227] NF_HOOK+0x4c/0x220
[ 186.496444] ip_forward+0x42c/0x594
[ 186.500018] ip_sublist_rcv_finish+0x9c/0xe8
[ 186.504392] ip_sublist_rcv+0x1d4/0x308
[ 186.508321] ip_list_rcv+0x120/0x164
[ 186.511984] __netif_receive_skb_list_core+0x230/0x324
[ 186.517252] __netif_receive_skb_list+0x194/0x230
[ 186.522073] netif_receive_skb_list_internal+0x128/0x204
[ 186.527518] napi_gro_receive+0x108/0x174
[ 186.531625] bcmgenet_desc_rx+0x2bc/0x57c
[ 186.535735] bcmgenet_rx_poll+0x44/0x124
[ 186.539753] __napi_poll+0x60/0x1f8
[ 186.543328] net_rx_action+0x198/0x468
[ 186.547170] __do_softirq+0x16c/0x42c
[ 186.550923] do_softirq+0xcc/0x134
[ 186.554410] __local_bh_enable_ip+0xc8/0x100
[ 186.558786] local_bh_enable.6846+0x14/0x20
[ 186.563074] irq_forced_thread_fn+0x9c/0xf0
[ 186.567360] irq_thread+0x26c/0x4b8
[ 186.570935] kthread+0x2c8/0x338
[ 186.574242] ret_from_fork+0x10/0x18
[ 186.578057] ================================================================================
[ 186.586818] ================================================================================
[ 186.595551] UBSAN: object-size-mismatch in ./include/net/flow.h:197:33
[ 186.602325] member access within address 000000009aa2bab1 with insufficient space
[ 186.610009] for an object of type 'union (anonymous union at ./include/net/flow.h:172:2)'
[ 186.618533] CPU: 0 PID: 530 Comm: irq/61-eth0 Tainted: G C 5.14.0-rc5-clang12almostdebian #1
[ 186.628541] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT)
[ 186.634520] Call trace:
[ 186.637025] __typeid__ZTSFiP11task_structPK11user_regsetjjPKvS5_E_global_addr+0x30/0x38
[ 186.645331] dump_stack_lvl+0x8c/0x128
[ 186.649177] dump_stack+0x18/0x24
[ 186.652574] ubsan_type_mismatch_common+0x198/0x2a4
[ 186.657572] __ubsan_handle_type_mismatch_v1+0x40/0x50
[ 186.662837] __icmp_send+0x568/0xef0
[ 186.666504] ipv4_link_failure+0x134/0x214
[ 186.670703] ip6_tnl_xmit+0x96c/0x1190
[ 186.674546] ip6_tnl_start_xmit+0x4c4/0x52c
[ 186.678833] dev_hard_start_xmit+0x128/0x220
[ 186.683209] __dev_queue_xmit+0x6ac/0xd38
[ 186.687316] neigh_connected_output+0x13c/0x188
[ 186.691959] ip_finish_output2+0x300/0x860
[ 186.696157] __ip_finish_output+0x10c/0x1e8
[ 186.700442] ip_finish_output+0x58/0x124
[ 186.704460] ip_output+0x138/0x3f8
[ 186.707944] ip_forward_finish+0xd4/0x140
[ 186.712052] NF_HOOK+0x4c/0x220
[ 186.715270] ip_forward+0x42c/0x594
[ 186.718843] ip_sublist_rcv_finish+0x9c/0xe8
[ 186.723217] ip_sublist_rcv+0x1d4/0x308
[ 186.727146] ip_list_rcv+0x120/0x164
[ 186.730809] __netif_receive_skb_list_core+0x230/0x324
[ 186.736077] __netif_receive_skb_list+0x194/0x230
[ 186.740897] netif_receive_skb_list_internal+0x128/0x204
[ 186.746341] napi_gro_receive+0x108/0x174
[ 186.750449] bcmgenet_desc_rx+0x2bc/0x57c
[ 186.754560] bcmgenet_rx_poll+0x44/0x124
[ 186.758578] __napi_poll+0x60/0x1f8
[ 186.762153] net_rx_action+0x198/0x468
[ 186.765996] __do_softirq+0x16c/0x42c
[ 186.769749] do_softirq+0xcc/0x134
[ 186.773237] __local_bh_enable_ip+0xc8/0x100
[ 186.777613] local_bh_enable.6846+0x14/0x20
[ 186.781900] irq_forced_thread_fn+0x9c/0xf0
[ 186.786186] irq_thread+0x26c/0x4b8
[ 186.789762] kthread+0x2c8/0x338
[ 186.793069] ret_from_fork+0x10/0x18
[ 186.796834] ================================================================================
[ 186.806158] ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
[ 186.813226] ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
[ 186.820129] ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
[ 186.827147] ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
[ 186.834169] ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
[ 186.841261] ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
[ 186.861709] ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
[ 186.868926] ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
[ 186.875970] ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
[ 186.883110] ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
[ 186.890356] ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
[ 195.356055] ================================================================================
[ 195.366929] UBSAN: object-size-mismatch in ./include/net/flow.h:197:33
[ 195.374201] member access within address 00000000e8d7399a with insufficient space
[ 195.382292] for an object of type 'struct flowi'
[ 195.387599] CPU: 3 PID: 1080 Comm: pinger Tainted: G C 5.14.0-rc5-clang12almostdebian #1
[ 195.397260] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT)
[ 195.403244] Call trace:
[ 195.405753] __typeid__ZTSFiP11task_structPK11user_regsetjjPKvS5_E_global_addr+0x30/0x38
[ 195.414079] dump_stack_lvl+0x8c/0x128
[ 195.417936] dump_stack+0x18/0x24
[ 195.421342] ubsan_type_mismatch_common+0x198/0x2a4
[ 195.426349] __ubsan_handle_type_mismatch_v1+0x40/0x50
[ 195.431624] raw_sendmsg+0x624/0xdbc
[ 195.435295] inet_sendmsg+0x64/0xac
[ 195.438879] __sys_sendto+0x228/0x2d0
[ 195.442641] __arm64_sys_sendto+0x30/0x40
[ 195.446764] invoke_syscall+0xac/0x160
[ 195.450618] el0_svc_common+0xc8/0x104
[ 195.454469] do_el0_svc+0x30/0x7c
[ 195.457877] el0_svc+0x34/0x128
[ 195.461109] el0t_64_sync_handler+0x6c/0xb0
[ 195.465406] el0t_64_sync+0x150/0x154
[ 195.483933] ================================================================================
[ 195.493442] ================================================================================
[ 195.509524] UBSAN: object-size-mismatch in ./include/net/flow.h:197:33
[ 195.519422] member access within address 00000000e8d7399a with insufficient space
[ 195.528782] for an object of type 'union (anonymous union at ./include/net/flow.h:172:2)'
[ 195.539450] CPU: 3 PID: 1080 Comm: pinger Tainted: G C 5.14.0-rc5-clang12almostdebian #1
[ 195.549107] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT)
[ 195.555092] Call trace:
[ 195.557604] __typeid__ZTSFiP11task_structPK11user_regsetjjPKvS5_E_global_addr+0x30/0x38
[ 195.565920] dump_stack_lvl+0x8c/0x128
[ 195.569775] dump_stack+0x18/0x24
[ 195.573184] ubsan_type_mismatch_common+0x198/0x2a4
[ 195.578196] __ubsan_handle_type_mismatch_v1+0x40/0x50
[ 195.583474] raw_sendmsg+0x634/0xdbc
[ 195.587151] inet_sendmsg+0x64/0xac
[ 195.590736] __sys_sendto+0x228/0x2d0
[ 195.594501] __arm64_sys_sendto+0x30/0x40
[ 195.598618] invoke_syscall+0xac/0x160
[ 195.602471] el0_svc_common+0xc8/0x104
[ 195.606321] do_el0_svc+0x30/0x7c
[ 195.609727] el0_svc+0x34/0x128
[ 195.612959] el0t_64_sync_handler+0x6c/0xb0
[ 195.617258] el0t_64_sync+0x150/0x154
[ 195.628942] ================================================================================
[ 613.441480] ------------[ cut here ]------------
[ 613.446247] WARNING: CPU: 0 PID: 0 at kernel/rcu/tree.c:652 rcu_eqs_enter+0xe0/0x130
[ 613.454207] Modules linked in: hci_uart btqca btrtl btintel binfmt_misc btsdio btbcm bluetooth sha512_generic nls_ascii nls_cp437 vfat fat sha512_arm64 aes_neon_bs bcm2835_v4l2(C) snd_usb_audio aes_neon_blk evdev crypto_simd cryptd bcm2835_mmal_vchiq(C) snd_soc_core uvcvideo nft_nat snd_usbmidi_lib videobuf2_vmalloc snd_hwdep snd_pcm_dmaengine snd_rawmidi videobuf2_memops cec snd_seq_device drbg drm_kms_helper videobuf2_v4l2 brcmfmac snd_pcm aes_arm64 videobuf2_common snd_timer aes_generic brcmutil ansi_cprng nft_numgen snd videodev ecdh_generic cfg80211 sysimgblt sg soundcore ecc mc syscopyarea crct10dif_ce rfkill libaes vchiq(C) sysfillrect bcm2711_thermal pwm_bcm2835 bcm2835_wdt fb_sys_fops nvmem_rmem leds_gpio cpufreq_dt nft_chain_nat nf_nat nft_reject_inet nf_reject_ipv6 nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nft_reject_ipv4 nf_reject_ipv4 nft_reject nft_counter nft_log pkcs8_key_parser cpufreq_powersave vhost_net nf_tables vhost vhost_iotlb nfnetlink tun loop drm fuse
[ 613.454683] drm_panel_orientation_quirks cpufreq_conservative configfs ip_tables x_tables autofs4 uas usb_storage raid6_pq xor xor_neon zstd_compress libcrc32c kyber_iosched dwc2 roles xhci_pci udc_core xhci_hcd sdhci_iproc iproc_rng200 sdhci_pltfm raspberrypi_hwmon i2c_bcm2835 rng_core usbcore fixed gpio_regulator sdhci phy_generic
[ 613.574485] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G C 5.14.0-rc5-clang12almostdebian #1
[ 613.584115] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT)
[ 613.590092] pstate: 204000c5 (nzCv daIF +PAN -UAO -TCO BTYPE=--)
[ 613.596248] pc : rcu_eqs_enter+0xe0/0x130
[ 613.600361] lr : rcu_eqs_enter+0x18/0x130
[ 613.604471] sp : ffffbca1a19c3d50
[ 613.607866] x29: ffffbca1a19c3d60 x28: 000000000162343c x27: d3f3d18400200200
[ 613.615194] x26: 3d8fdb8200000000 x25: ffffbca1a209ce20 x24: ffffbca1a19d0000
[ 613.622520] x23: ffffbca1a19d0c90 x22: 0000000000000001 x21: 0000000000000000
[ 613.629846] x20: ffffbca1a19aecc0 x19: ffff2e80f684fcc0 x18: ffffbca1a19dc2f8
[ 613.637170] x17: 00000007fffffff8 x16: 0000000000000028 x15: 0000000000001c00
[ 613.644495] x14: 000000afd546f180 x13: ffff2e8064dfda00 x12: 0000000000000039
[ 613.651821] x11: 000000001284bb43 x10: 0000000000000001 x9 : 4000000000000000
[ 613.659146] x8 : 4000000000000002 x7 : 0000000000000000 x6 : ffffbca1a0023fe0
[ 613.666471] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000002
[ 613.673797] x2 : 0000000000000000 x1 : ffffbca1a1467d7c x0 : 0000000000000000
[ 613.681123] Call trace:
[ 613.683629] rcu_eqs_enter+0xe0/0x130
[ 613.687383] default_idle_call+0x38/0xc0
[ 613.691405] do_idle+0x194/0x290
[ 613.694716] cpu_startup_entry+0x2c/0x30
[ 613.698736] kernel_init+0x0/0x2c4
[ 613.702224] start_kernel+0x0/0x554
[ 613.705800] start_kernel+0x4b0/0x554
[ 613.709552] __primary_switched+0xc0/0xc8
[ 613.713664] ---[ end trace c515acfca8f78c9a ]---
"ip l" looks as follows:
# ip l
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc pfifo_head_drop state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_head_drop state UP mode DEFAULT group default qlen 1000
link/ether dc:a6:32:bb:99:d9 brd ff:ff:ff:ff:ff:ff
3: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DORMANT group default qlen 1000
link/ether dc:a6:32:bb:99:da brd ff:ff:ff:ff:ff:ff
4: myve1@...0: <BROADCAST,MULTICAST,ALLMULTI,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
link/ether 96:8a:a9:8d:f6:64 brd ff:ff:ff:ff:ff:ff
5: myvtap1@...0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 500
link/ether 8e:7e:4b:95:3b:59 brd ff:ff:ff:ff:ff:ff
6: ip6tnl1@...e1: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1460 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/tunnel6 2400:4050:2ba1:ac00:99:f0ae:8600:2c00 peer 2001:380:a120::9 permaddr aa1d:2abe:41ac::
"ip a" looks as follows:
# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc pfifo_head_drop state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_head_drop state UP group default qlen 1000
link/ether dc:a6:32:bb:99:d9 brd ff:ff:ff:ff:ff:ff
3: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether dc:a6:32:bb:99:da brd ff:ff:ff:ff:ff:ff
4: myve1@...0: <BROADCAST,MULTICAST,ALLMULTI,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 96:8a:a9:8d:f6:64 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.2/24 brd 192.168.1.255 scope global myve1
valid_lft forever preferred_lft forever
inet6 2400:4050:2ba1:ac00:948a:a9ff:fe8d:f664/64 scope global dynamic mngtmpaddr noprefixroute
valid_lft 13193sec preferred_lft 11393sec
inet6 2400:4050:2ba1:ac00:99:f0ae:8600:beef/64 scope global
valid_lft forever preferred_lft forever
inet6 2400:4050:2ba1:ac00:99:f0ae:8600:9595/64 scope global
valid_lft forever preferred_lft forever
inet6 2400:4050:2ba1:ac00:99:f0ae:8600:2c00/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::948a:a9ff:fe8d:f664/64 scope link
valid_lft forever preferred_lft forever
5: myvtap1@...0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 500
link/ether 8e:7e:4b:95:3b:59 brd ff:ff:ff:ff:ff:ff
6: ip6tnl1@...e1: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1460 qdisc noqueue state UNKNOWN group default qlen 1000
link/tunnel6 2400:4050:2ba1:ac00:99:f0ae:8600:2c00 peer 2001:380:a120::9 permaddr aa1d:2abe:41ac::
inet 153.240.174.134/32 scope global ip6tnl1
valid_lft forever preferred_lft forever
The network IFs are configured only by the systemd-networkd.
ip6tnl1 is used for "MAP-E" in the sense of
https://en.wikipedia.org/wiki/Mapping_of_Address_and_Port
which uses nftables.
Full dmesg, kernel build config, nftables.conf,
and systemd-network config files are attached.
I hope this report is somewhat useful for the development.
I will be absent from email for the next 36 hours.
Best regards, Ryutaroh Matsumoto
View attachment "dmesg-5.14rc5.txt" of type "Text/Plain" (54956 bytes)
View attachment "last-build-config-5.14-rc5.txt" of type "Text/Plain" (210811 bytes)
View attachment "nftables.conf" of type "Text/Plain" (40921 bytes)
View attachment "eth0.network" of type "Text/Plain" (307 bytes)
View attachment "myve1.netdev" of type "Text/Plain" (56 bytes)
View attachment "myve1.network" of type "Text/Plain" (810 bytes)
View attachment "ip6tnl1.netdev" of type "Text/Plain" (184 bytes)
View attachment "ip6tnl1.network" of type "Text/Plain" (308 bytes)
View attachment "myvtap1.netdev" of type "Text/Plain" (58 bytes)
View attachment "myvtap1.network" of type "Text/Plain" (262 bytes)
View attachment "wlan0.network" of type "Text/Plain" (288 bytes)
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