[ 47.704877] ------------[ cut here ]------------
[ 47.704953] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: unshare/202
[ 47.705052] Modules linked in:
[ 47.705109] CPU: 2 UID: 0 PID: 202 Comm: unshare Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 47.705211] Tainted: [W]=WARN
[ 47.705265] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.705336] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 47.705399] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
[ 47.705536] RSP: 0018:ff60a8d680437cc8 EFLAGS: 00010286
[ 47.705599] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 47.705675] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff26e36243042d00
[ 47.705753] RBP: 0000000000000000 R08: ff26e362432fba50 R09: ff26e362431ec02c
[ 47.705827] R10: ff26e362431ee118 R11: fefefefefefefeff R12: 0000000000000000
[ 47.705904] R13: 0000000000000010 R14: ff26e362431ee000 R15: ff26e36243042d00
[ 47.705987] FS: 00007f2a18231740(0000) GS:ff26e362f5b96000(0000) knlGS:0000000000000000
[ 47.706072] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 47.706142] CR2: 00007f2a183f3280 CR3: 0000000004d1d006 CR4: 0000000000771ef0
[ 47.706226] PKRU: 55555554
[ 47.706273] Call Trace:
[ 47.706322]
[ 47.706370] rtmsg_ifinfo+0x3c/0xa0
[ 47.706426] register_netdevice+0x889/0x9f0
[ 47.706482] register_netdev+0x1e/0x30
[ 47.706537] loopback_net_init+0x57/0xb0
[ 47.706595] ? vsock_sysctl_init_net+0xb6/0x140
[ 47.706659] ops_init+0x68/0x140
[ 47.706717] setup_net+0x85/0x150
[ 47.706773] copy_net_ns+0xf5/0x200
[ 47.706832] create_new_namespaces+0x117/0x2f0
[ 47.706897] unshare_nsproxy_namespaces+0x85/0xb0
[ 47.706960] ksys_unshare+0x346/0x5e0
[ 47.707025] __x64_sys_unshare+0x12/0x20
[ 47.707081] do_syscall_64+0x104/0xfc0
[ 47.707139] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 47.707208] RIP: 0033:0x7f2a1832cbcb
[ 47.707264] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
[ 47.707400] RSP: 002b:00007ffdc1ec2748 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[ 47.707481] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2a1832cbcb
[ 47.707556] RDX: 0000000000000000 RSI: 00007ffdc1ec24b0 RDI: 0000000040000000
[ 47.707634] RBP: 00007ffdc1ec2ad0 R08: 00007ffdc1ec26a0 R09: 0000000000000000
[ 47.707713] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[ 47.707793] R13: 0000000000000000 R14: 00000000ffffffff R15: 0000561d2dea4b68
[ 47.707873]
[ 47.707920] ---[ end trace 0000000000000000 ]---
[ 47.708667] ------------[ cut here ]------------
[ 47.708731] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/202
[ 47.708821] Modules linked in:
[ 47.708877] CPU: 2 UID: 0 PID: 202 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 47.708970] Tainted: [W]=WARN
[ 47.709027] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.709096] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 47.709161] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
[ 47.709307] RSP: 0018:ff60a8d680437d68 EFLAGS: 00010286
[ 47.709369] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 47.709447] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff26e36243042d00
[ 47.709524] RBP: 0000000000000000 R08: ff26e3624305e850 R09: ff26e36244ec2030
[ 47.709603] R10: ff26e36244c0c118 R11: fefefefefefefeff R12: 0000000000000000
[ 47.709680] R13: 0000000000000010 R14: ff26e36244c0c000 R15: ff26e36243042d00
[ 47.709760] FS: 000000003bbf0400(0000) GS:ff26e362f5b96000(0000) knlGS:0000000000000000
[ 47.709839] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 47.709909] CR2: 00007f7bb415d000 CR3: 0000000003278001 CR4: 0000000000771ef0
[ 47.709988] PKRU: 55555554
[ 47.710039] Call Trace:
[ 47.710087]
[ 47.710135] rtmsg_ifinfo+0x3c/0xa0
[ 47.710197] register_netdevice+0x889/0x9f0
[ 47.710253] __tun_chr_ioctl+0x83c/0x16c0
[ 47.710312] ? do_sys_openat2+0x9a/0xe0
[ 47.710370] __x64_sys_ioctl+0xa1/0xe0
[ 47.710427] do_syscall_64+0x104/0xfc0
[ 47.710485] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 47.710550] RIP: 0033:0x47cc8d
[ 47.710606] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
[ 47.710733] RSP: 002b:00007fff6659da60 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 47.710810] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 47.710883] RDX: 00007fff6659dae0 RSI: 00000000400454ca RDI: 0000000000000005
[ 47.710954] RBP: 00007fff6659dab0 R08: 0000000000000000 R09: 0000000000000000
[ 47.711037] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff6659dfb8
[ 47.711114] R13: 00007fff6659e038 R14: 0000000000000002 R15: 0000000000543540
[ 47.711203]
[ 47.711250] ---[ end trace 0000000000000000 ]---
[ 47.711339] ------------[ cut here ]------------
[ 47.711402] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/202
[ 47.711484] Modules linked in:
[ 47.711539] CPU: 2 UID: 0 PID: 202 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 47.711632] Tainted: [W]=WARN
[ 47.711686] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.711758] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 47.711827] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
[ 47.711962] RSP: 0018:ff60a8d680437d60 EFLAGS: 00010286
[ 47.712031] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[ 47.712112] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff26e36243042d00
[ 47.712195] RBP: 0000000000000002 R08: ff26e3624305e850 R09: ff26e36244ec2030
[ 47.712271] R10: ff26e36244c0c118 R11: fefefefefefefeff R12: 0000000000000000
[ 47.712350] R13: 0000000000000010 R14: ff26e36244c0c000 R15: ff26e36243042d00
[ 47.712428] FS: 000000003bbf0400(0000) GS:ff26e362f5b96000(0000) knlGS:0000000000000000
[ 47.712509] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 47.712579] CR2: 00007f7bb415d000 CR3: 0000000003278001 CR4: 0000000000771ef0
[ 47.712656] PKRU: 55555554
[ 47.712703] Call Trace:
[ 47.712750]
[ 47.712798] rtnetlink_event+0x6e/0xb0
[ 47.712854] notifier_call_chain+0x6d/0x100
[ 47.712914] netdev_update_features+0x56/0x60
[ 47.712981] __tun_chr_ioctl+0xbf1/0x16c0
[ 47.713045] ? file_init_path+0x62/0x120
[ 47.713103] __x64_sys_ioctl+0xa1/0xe0
[ 47.713160] do_syscall_64+0x104/0xfc0
[ 47.713221] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 47.713286] RIP: 0033:0x47cc8d
[ 47.713343] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
[ 47.713485] RSP: 002b:00007fff6659daa0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 47.713567] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 47.713647] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[ 47.713724] RBP: 00007fff6659daf0 R08: 0000000000000005 R09: 0000000000001ff0
[ 47.713801] R10: 0000000000000003 R11: 0000000000000246 R12: 00007fff6659dfb8
[ 47.713880] R13: 00007fff6659e038 R14: 0000000000000002 R15: 0000000000543540
[ 47.713959]
[ 47.714012] ---[ end trace 0000000000000000 ]---
[ 47.714098] ------------[ cut here ]------------
[ 47.714162] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/202
[ 47.714256] Modules linked in:
[ 47.714311] CPU: 2 UID: 0 PID: 202 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 47.714402] Tainted: [W]=WARN
[ 47.714456] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.714525] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 47.714588] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
[ 47.714720] RSP: 0018:ff60a8d680437c10 EFLAGS: 00010286
[ 47.714788] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[ 47.714868] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff26e36243042d00
[ 47.714944] RBP: 0000000000000000 R08: ff26e3624305e850 R09: ff26e36244ec6030
[ 47.715022] R10: ff26e36244c0c118 R11: fefefefefefefeff R12: 0000000000000000
[ 47.715101] R13: 0000000000000010 R14: ff26e36244c0c000 R15: ff26e36243042d00
[ 47.715193] FS: 000000003bbf0400(0000) GS:ff26e362f5b96000(0000) knlGS:0000000000000000
[ 47.715270] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 47.715342] CR2: 00007f7bb415d000 CR3: 0000000003278001 CR4: 0000000000771ef0
[ 47.715422] PKRU: 55555554
[ 47.715469] Call Trace:
[ 47.715516]
[ 47.715564] rtmsg_ifinfo+0x3c/0xa0
[ 47.715621] __dev_notify_flags+0xb1/0xf0
[ 47.715679] netif_change_flags+0x54/0x70
[ 47.715737] dev_change_flags+0x45/0x80
[ 47.715793] devinet_ioctl+0x607/0x7f0
[ 47.715854] inet_ioctl+0x229/0x240
[ 47.715912] ? __rtnl_unlock+0x35/0x60
[ 47.715969] sock_do_ioctl+0x75/0x140
[ 47.716030] __x64_sys_ioctl+0xa1/0xe0
[ 47.716088] do_syscall_64+0x104/0xfc0
[ 47.716145] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 47.716215] RIP: 0033:0x47cc8d
[ 47.716270] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
[ 47.716408] RSP: 002b:00007fff6659da80 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 47.716491] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 47.716572] RDX: 00007fff6659daf0 RSI: 0000000000008914 RDI: 0000000000000006
[ 47.716649] RBP: 00007fff6659dad0 R08: 0000000000000005 R09: 0000000000001ff0
[ 47.716725] R10: 0000000000000003 R11: 0000000000000246 R12: 00007fff6659dfb8
[ 47.716799] R13: 00007fff6659e038 R14: 0000000000000002 R15: 0000000000543540
[ 47.716882]
[ 47.716929] ---[ end trace 0000000000000000 ]---
[ 92.690259] ------------[ cut here ]------------
[ 92.690352] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/202
[ 92.690447] Modules linked in:
[ 92.690505] CPU: 2 UID: 0 PID: 202 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 92.690595] Tainted: [W]=WARN
[ 92.690649] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 92.690716] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 92.690778] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
[ 92.690913] RSP: 0018:ff60a8d680437b58 EFLAGS: 00010286
[ 92.690977] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[ 92.691051] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff26e36241dd8b00
[ 92.691124] RBP: 0000000000000000 R08: ff26e3624305e850 R09: ff26e36244ec6030
[ 92.691578] R10: ff26e36244c0c118 R11: fefefefefefefeff R12: 0000000000000000
[ 92.691654] R13: 0000000000000010 R14: ff26e36244c0c000 R15: ff26e36241dd8b00
[ 92.691732] FS: 0000000000000000(0000) GS:ff26e362f5b96000(0000) knlGS:0000000000000000
[ 92.691808] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 92.691875] CR2: 00007f7bb415d000 CR3: 000000003e242002 CR4: 0000000000771ef0
[ 92.691950] PKRU: 55555554
[ 92.691996] Call Trace:
[ 92.692044]
[ 92.692092] rtmsg_ifinfo+0x3c/0xa0
[ 92.692147] netif_close_many+0xed/0x190
[ 92.692209] unregister_netdevice_many_notify+0x267/0x9d0
[ 92.692271] ? __queue_work+0x141/0x550
[ 92.692327] unregister_netdevice_queue+0x9e/0xd0
[ 92.692395] __tun_detach+0x591/0x5b0
[ 92.692453] tun_chr_close+0x3f/0xc0
[ 92.692507] __fput+0xe8/0x2c0
[ 92.692565] task_work_run+0x63/0xa0
[ 92.692620] do_exit+0x2c1/0xba0
[ 92.692676] ? ___sys_recvmsg+0xc6/0x100
[ 92.692731] do_group_exit+0x2d/0xc0
[ 92.692786] get_signal+0x82e/0x900
[ 92.692842] arch_do_signal_or_restart+0x77/0x2b0
[ 92.692906] exit_to_user_mode_loop+0x75/0x4a0
[ 92.692970] do_syscall_64+0x439/0xfc0
[ 92.693027] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 92.693090] RIP: 0033:0x4c2d9e
[ 92.693143] Code: Unable to access opcode bytes at 0x4c2d74.
[ 92.693215] RSP: 002b:00007fff6659d410 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[ 92.693289] RAX: 0000000000000050 RBX: 00007fff6659d4a0 RCX: 00000000004c2d9e
[ 92.693363] RDX: 0000000000000000 RSI: 00007fff6659d4b0 RDI: 0000000000000007
[ 92.693444] RBP: 00007fff6659d420 R08: 0000000000000000 R09: 0000000000000000
[ 92.693518] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff6659d494
[ 92.693591] R13: 00007fff6659e038 R14: 00007fff6659d5e0 R15: 0000000000543540
[ 92.693665]
[ 92.693711] ---[ end trace 0000000000000000 ]---
[ 92.693862] ------------[ cut here ]------------
[ 92.693899] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/202
[ 92.693955] Modules linked in:
[ 92.693979] CPU: 3 UID: 0 PID: 202 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 92.694041] Tainted: [W]=WARN
[ 92.694063] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 92.694100] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 92.694129] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
[ 92.694239] RSP: 0018:ff60a8d680437bc8 EFLAGS: 00010286
[ 92.694272] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 92.694317] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff26e36242ffa000
[ 92.694361] RBP: 0000000000000000 R08: ff26e3624305e850 R09: ff26e362473f4030
[ 92.694418] R10: ff26e36244c0c118 R11: fefefefefefefeff R12: 0000000000000000
[ 92.694465] R13: 0000000000000011 R14: ff26e36244c0c000 R15: ff26e36242ffa000
[ 92.694510] FS: 0000000000000000(0000) GS:ff26e362f5c16000(0000) knlGS:0000000000000000
[ 92.694555] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 92.694589] CR2: 00007f16e3f59680 CR3: 000000003e242003 CR4: 0000000000771ef0
[ 92.694633] PKRU: 55555554
[ 92.694649] Call Trace:
[ 92.694664]
[ 92.694680] unregister_netdevice_many_notify+0x877/0x9d0
[ 92.694707] unregister_netdevice_queue+0x9e/0xd0
[ 92.694737] __tun_detach+0x591/0x5b0
[ 92.694761] tun_chr_close+0x3f/0xc0
[ 92.694782] __fput+0xe8/0x2c0
[ 92.694807] task_work_run+0x63/0xa0
[ 92.694831] do_exit+0x2c1/0xba0
[ 92.694852] ? ___sys_recvmsg+0xc6/0x100
[ 92.694876] do_group_exit+0x2d/0xc0
[ 92.694897] get_signal+0x82e/0x900
[ 92.694920] arch_do_signal_or_restart+0x77/0x2b0
[ 92.694952] exit_to_user_mode_loop+0x75/0x4a0
[ 92.694987] do_syscall_64+0x439/0xfc0
[ 92.695009] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 92.695039] RIP: 0033:0x4c2d9e
[ 92.695060] Code: Unable to access opcode bytes at 0x4c2d74.
[ 92.695092] RSP: 002b:00007fff6659d410 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[ 92.695139] RAX: 0000000000000050 RBX: 00007fff6659d4a0 RCX: 00000000004c2d9e
[ 92.695187] RDX: 0000000000000000 RSI: 00007fff6659d4b0 RDI: 0000000000000007
[ 92.695228] RBP: 00007fff6659d420 R08: 0000000000000000 R09: 0000000000000000
[ 92.695271] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff6659d494
[ 92.695315] R13: 00007fff6659e038 R14: 00007fff6659d5e0 R15: 0000000000543540
[ 92.695356]
[ 92.695374] ---[ end trace 0000000000000000 ]---
[ 92.702272] ------------[ cut here ]------------
[ 92.702306] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: kworker/u16:1/64
[ 92.702373] Modules linked in:
[ 92.702397] CPU: 0 UID: 0 PID: 64 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 92.702454] Tainted: [W]=WARN
[ 92.702474] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 92.702509] Workqueue: netns cleanup_net
[ 92.702533] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 92.702558] Code: 80 00 00 00 e8 59 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 76 b2 fb ff b9 a6 ff ff
[ 92.702654] RSP: 0018:ff60a8d680237c78 EFLAGS: 00010286
[ 92.702682] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 92.702715] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff26e3624182fb00
[ 92.702758] RBP: 0000000000000000 R08: ff26e362432fba50 R09: ff26e362473f082c
[ 92.702798] R10: ff26e362431ee118 R11: fefefefefefefeff R12: 0000000000000000
[ 92.702841] R13: 0000000000000011 R14: ff26e362431ee000 R15: ff26e3624182fb00
[ 92.702887] FS: 0000000000000000(0000) GS:ff26e362f5a96000(0000) knlGS:0000000000000000
[ 92.702933] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 92.702965] CR2: 000056328aeef2b8 CR3: 000000000307d006 CR4: 0000000000771ef0
[ 92.703007] PKRU: 55555554
[ 92.703021] Call Trace:
[ 92.703034]
[ 92.703048] unregister_netdevice_many_notify+0x877/0x9d0
[ 92.703072] default_device_exit_batch+0x318/0x390
[ 92.703100] ops_undo_list+0x10b/0x240
[ 92.703123] cleanup_net+0x1d7/0x2e0
[ 92.703149] process_one_work+0x162/0x360
[ 92.703170] worker_thread+0x16e/0x2d0
[ 92.703193] ? rescuer_thread+0x510/0x510
[ 92.703214] kthread+0xe1/0x120
[ 92.703235] ? kthread_park+0xa0/0xa0
[ 92.703256] ret_from_fork+0x16d/0x250
[ 92.703275] ? kthread_park+0xa0/0xa0
[ 92.703294] ret_from_fork_asm+0x11/0x20
[ 92.703316]
[ 92.703330] ---[ end trace 0000000000000000 ]---