[ 411.456151] ------------[ cut here ]------------
[ 411.456207] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: unshare/557
[ 411.456268] Modules linked in:
[ 411.456295] CPU: 3 UID: 0 PID: 557 Comm: unshare Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 411.456353] Tainted: [W]=WARN
[ 411.456376] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 411.456410] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 411.456437] 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
[ 411.456541] RSP: 0018:ff77a99b808f7cc8 EFLAGS: 00010286
[ 411.456568] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 411.456615] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2556dc818ea000
[ 411.456664] RBP: 0000000000000000 R08: ff2556dc83283cd0 R09: ff2556dc8302e02c
[ 411.456713] R10: ff2556dc8301f118 R11: fefefefefefefeff R12: 0000000000000000
[ 411.456754] R13: 0000000000000010 R14: ff2556dc8301f000 R15: ff2556dc818ea000
[ 411.456810] FS: 00007f7260c34740(0000) GS:ff2556dd08016000(0000) knlGS:0000000000000000
[ 411.456853] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 411.456888] CR2: 0000556178869008 CR3: 0000000006849002 CR4: 0000000000771ef0
[ 411.456931] PKRU: 55555554
[ 411.456947] Call Trace:
[ 411.456972]
[ 411.456992] rtmsg_ifinfo+0x3c/0xa0
[ 411.457015] register_netdevice+0x889/0x9f0
[ 411.457039] register_netdev+0x1e/0x30
[ 411.457060] loopback_net_init+0x57/0xb0
[ 411.457088] ? vsock_sysctl_init_net+0xb6/0x140
[ 411.457118] ops_init+0x68/0x140
[ 411.457140] setup_net+0x85/0x150
[ 411.457164] copy_net_ns+0xf5/0x200
[ 411.457188] create_new_namespaces+0x117/0x2f0
[ 411.457219] unshare_nsproxy_namespaces+0x85/0xb0
[ 411.457246] ksys_unshare+0x346/0x5e0
[ 411.457271] __x64_sys_unshare+0x12/0x20
[ 411.457293] do_syscall_64+0x104/0xfc0
[ 411.457313] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 411.457343] RIP: 0033:0x7f7260d2fbcb
[ 411.457367] 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
[ 411.457475] RSP: 002b:00007ffe3bf2af18 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[ 411.457517] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7260d2fbcb
[ 411.457552] RDX: 0000000000000000 RSI: 00007ffe3bf2ac80 RDI: 0000000040000000
[ 411.457592] RBP: 00007ffe3bf2b2a0 R08: 00007ffe3bf2ae70 R09: 0000000000000000
[ 411.457647] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[ 411.457691] R13: 0000000000000000 R14: 00000000ffffffff R15: 0000556156722b68
[ 411.457736]
[ 411.457750] ---[ end trace 0000000000000000 ]---
[ 411.458367] ------------[ cut here ]------------
[ 411.458398] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/557
[ 411.458450] Modules linked in:
[ 411.458474] CPU: 3 UID: 0 PID: 557 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 411.458530] Tainted: [W]=WARN
[ 411.458554] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 411.458589] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 411.458620] 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
[ 411.458724] RSP: 0018:ff77a99b808f7d68 EFLAGS: 00010286
[ 411.458759] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 411.458807] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2556dc818ea000
[ 411.458846] RBP: 0000000000000000 R08: ff2556dc81d67cd0 R09: ff2556dc86a99030
[ 411.458889] R10: ff2556dc82bb4118 R11: fefefefefefefeff R12: 0000000000000000
[ 411.458935] R13: 0000000000000010 R14: ff2556dc82bb4000 R15: ff2556dc818ea000
[ 411.458981] FS: 000000003b717400(0000) GS:ff2556dd08016000(0000) knlGS:0000000000000000
[ 411.459027] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 411.459061] CR2: 00007fafd4b84000 CR3: 0000000002b86003 CR4: 0000000000771ef0
[ 411.459106] PKRU: 55555554
[ 411.459121] Call Trace:
[ 411.459136]
[ 411.459151] rtmsg_ifinfo+0x3c/0xa0
[ 411.459172] register_netdevice+0x889/0x9f0
[ 411.459191] __tun_chr_ioctl+0x83c/0x16c0
[ 411.459217] ? do_sys_openat2+0x9a/0xe0
[ 411.459241] __x64_sys_ioctl+0xa1/0xe0
[ 411.459276] do_syscall_64+0x104/0xfc0
[ 411.459299] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 411.459327] RIP: 0033:0x47cc8d
[ 411.459350] 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
[ 411.459450] RSP: 002b:00007ffe62152620 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 411.459492] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 411.459532] RDX: 00007ffe621526a0 RSI: 00000000400454ca RDI: 0000000000000005
[ 411.459582] RBP: 00007ffe62152670 R08: 0000000000000000 R09: 0000000000000000
[ 411.459622] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe62152b78
[ 411.459668] R13: 00007ffe62152bf8 R14: 0000000000000002 R15: 0000000000543540
[ 411.459714]
[ 411.459730] ---[ end trace 0000000000000000 ]---
[ 411.459773] ------------[ cut here ]------------
[ 411.459808] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/557
[ 411.459861] Modules linked in:
[ 411.459884] CPU: 3 UID: 0 PID: 557 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 411.459939] Tainted: [W]=WARN
[ 411.459962] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 411.459999] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 411.460028] 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
[ 411.460132] RSP: 0018:ff77a99b808f7d60 EFLAGS: 00010286
[ 411.460159] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[ 411.460204] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2556dc818ea000
[ 411.460249] RBP: 0000000000000002 R08: ff2556dc81d67cd0 R09: ff2556dc86a99030
[ 411.460293] R10: ff2556dc82bb4118 R11: fefefefefefefeff R12: 0000000000000000
[ 411.460335] R13: 0000000000000010 R14: ff2556dc82bb4000 R15: ff2556dc818ea000
[ 411.460381] FS: 000000003b717400(0000) GS:ff2556dd08016000(0000) knlGS:0000000000000000
[ 411.460427] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 411.460468] CR2: 00007fafd4b84000 CR3: 0000000002b86003 CR4: 0000000000771ef0
[ 411.460510] PKRU: 55555554
[ 411.460525] Call Trace:
[ 411.460539]
[ 411.460556] rtnetlink_event+0x6e/0xb0
[ 411.460578] notifier_call_chain+0x6d/0x100
[ 411.460600] netdev_update_features+0x56/0x60
[ 411.460629] __tun_chr_ioctl+0xbf1/0x16c0
[ 411.460657] ? file_init_path+0x62/0x120
[ 411.460681] __x64_sys_ioctl+0xa1/0xe0
[ 411.460700] do_syscall_64+0x104/0xfc0
[ 411.460720] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 411.460750] RIP: 0033:0x47cc8d
[ 411.460770] 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
[ 411.460880] RSP: 002b:00007ffe62152660 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 411.460924] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 411.460973] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[ 411.461015] RBP: 00007ffe621526b0 R08: 0000000000000000 R09: 0000000000000000
[ 411.461058] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe62152b78
[ 411.461099] R13: 00007ffe62152bf8 R14: 0000000000000002 R15: 0000000000543540
[ 411.461142]
[ 411.461155] ---[ end trace 0000000000000000 ]---
[ 411.461197] ------------[ cut here ]------------
[ 411.461225] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/557
[ 411.461278] Modules linked in:
[ 411.461300] CPU: 3 UID: 0 PID: 557 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 411.461352] Tainted: [W]=WARN
[ 411.461373] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 411.461416] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 411.461444] 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
[ 411.461548] RSP: 0018:ff77a99b808f7c10 EFLAGS: 00010286
[ 411.461577] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[ 411.461620] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2556dc818ea000
[ 411.461665] RBP: 0000000000000000 R08: ff2556dc81d67cd0 R09: ff2556dc82e9f030
[ 411.461707] R10: ff2556dc82bb4118 R11: fefefefefefefeff R12: 0000000000000000
[ 411.461747] R13: 0000000000000010 R14: ff2556dc82bb4000 R15: ff2556dc818ea000
[ 411.461791] FS: 000000003b717400(0000) GS:ff2556dd08016000(0000) knlGS:0000000000000000
[ 411.461841] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 411.461875] CR2: 00007fafd4b84000 CR3: 0000000002b86003 CR4: 0000000000771ef0
[ 411.461916] PKRU: 55555554
[ 411.461931] Call Trace:
[ 411.461946]
[ 411.461959] rtmsg_ifinfo+0x3c/0xa0
[ 411.461981] __dev_notify_flags+0xb1/0xf0
[ 411.462005] netif_change_flags+0x54/0x70
[ 411.462026] dev_change_flags+0x45/0x80
[ 411.462046] devinet_ioctl+0x607/0x7f0
[ 411.462070] inet_ioctl+0x229/0x240
[ 411.462094] ? __rtnl_unlock+0x35/0x60
[ 411.462116] sock_do_ioctl+0x75/0x140
[ 411.462142] __x64_sys_ioctl+0xa1/0xe0
[ 411.462164] do_syscall_64+0x104/0xfc0
[ 411.462186] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 411.462215] RIP: 0033:0x47cc8d
[ 411.462236] 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
[ 411.462330] RSP: 002b:00007ffe62152640 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 411.462366] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 411.462407] RDX: 00007ffe621526b0 RSI: 0000000000008914 RDI: 0000000000000006
[ 411.462451] RBP: 00007ffe62152690 R08: 0000000000000000 R09: 0000000000000000
[ 411.462491] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe62152b78
[ 411.462534] R13: 00007ffe62152bf8 R14: 0000000000000002 R15: 0000000000543540
[ 411.462573]
[ 411.462588] ---[ end trace 0000000000000000 ]---
[ 456.441946] ------------[ cut here ]------------
[ 456.442032] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/557
[ 456.442094] Modules linked in:
[ 456.442122] CPU: 3 UID: 0 PID: 557 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 456.442186] Tainted: [W]=WARN
[ 456.442208] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 456.442252] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 456.442283] 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
[ 456.442386] RSP: 0018:ff77a99b808f7b58 EFLAGS: 00010286
[ 456.442416] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[ 456.442459] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2556dc81926200
[ 456.442499] RBP: 0000000000000000 R08: ff2556dc81d67cd0 R09: ff2556dc82e9f030
[ 456.442543] R10: ff2556dc82bb4118 R11: fefefefefefefeff R12: 0000000000000000
[ 456.442585] R13: 0000000000000010 R14: ff2556dc82bb4000 R15: ff2556dc81926200
[ 456.442634] FS: 0000000000000000(0000) GS:ff2556dd08016000(0000) knlGS:0000000000000000
[ 456.442679] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 456.442713] CR2: 00007fafd4b84000 CR3: 0000000004a42006 CR4: 0000000000771ef0
[ 456.442754] PKRU: 55555554
[ 456.442769] Call Trace:
[ 456.442785]
[ 456.442932] rtmsg_ifinfo+0x3c/0xa0
[ 456.442957] netif_close_many+0xed/0x190
[ 456.442984] unregister_netdevice_many_notify+0x267/0x9d0
[ 456.443010] ? __queue_work+0x141/0x550
[ 456.443036] unregister_netdevice_queue+0x9e/0xd0
[ 456.443064] __tun_detach+0x591/0x5b0
[ 456.443091] tun_chr_close+0x3f/0xc0
[ 456.443113] __fput+0xe8/0x2c0
[ 456.443138] task_work_run+0x63/0xa0
[ 456.443162] do_exit+0x2c1/0xba0
[ 456.443185] do_group_exit+0x2d/0xc0
[ 456.443209] get_signal+0x82e/0x900
[ 456.443245] ? netlink_bind+0x3d2/0x420
[ 456.443267] arch_do_signal_or_restart+0x77/0x2b0
[ 456.443299] ? __sys_bind+0xc1/0x120
[ 456.443324] exit_to_user_mode_loop+0x75/0x4a0
[ 456.443355] do_syscall_64+0x439/0xfc0
[ 456.443382] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 456.443408] RIP: 0033:0x47e7bb
[ 456.443432] Code: Unable to access opcode bytes at 0x47e791.
[ 456.443466] RSP: 002b:00007ffe621520c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
[ 456.443508] RAX: 0000000000000000 RBX: 00007ffe621521a0 RCX: 000000000047e7bb
[ 456.443553] RDX: 000000000000000c RSI: 00007ffe621520dc RDI: 0000000000000007
[ 456.443590] RBP: 00007ffe62152100 R08: 0000000000000041 R09: 000000003b7183e0
[ 456.443630] R10: 0000000000000040 R11: 0000000000000246 R12: 00007ffe62152b78
[ 456.443669] R13: 00007ffe62152bf8 R14: 00007ffe62152678 R15: 0000000000543540
[ 456.443710]
[ 456.443726] ---[ end trace 0000000000000000 ]---
[ 456.443834] ------------[ cut here ]------------
[ 456.443864] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: packetdrill/557
[ 456.443914] Modules linked in:
[ 456.443936] CPU: 3 UID: 0 PID: 557 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 456.443989] Tainted: [W]=WARN
[ 456.444009] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 456.444043] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 456.444069] 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
[ 456.444163] RSP: 0018:ff77a99b808f7bc8 EFLAGS: 00010286
[ 456.444189] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 456.444230] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2556dc81926200
[ 456.444272] RBP: 0000000000000000 R08: ff2556dc81d67cd0 R09: ff2556dc893d2830
[ 456.444313] R10: ff2556dc82bb4118 R11: fefefefefefefeff R12: 0000000000000000
[ 456.444356] R13: 0000000000000011 R14: ff2556dc82bb4000 R15: ff2556dc81926200
[ 456.444401] FS: 0000000000000000(0000) GS:ff2556dd08016000(0000) knlGS:0000000000000000
[ 456.444447] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 456.444482] CR2: 00007fafd4b84000 CR3: 0000000004a42006 CR4: 0000000000771ef0
[ 456.444520] PKRU: 55555554
[ 456.444539] Call Trace:
[ 456.444553]
[ 456.444568] unregister_netdevice_many_notify+0x877/0x9d0
[ 456.444598] unregister_netdevice_queue+0x9e/0xd0
[ 456.444627] __tun_detach+0x591/0x5b0
[ 456.444648] tun_chr_close+0x3f/0xc0
[ 456.444670] __fput+0xe8/0x2c0
[ 456.444692] task_work_run+0x63/0xa0
[ 456.444715] do_exit+0x2c1/0xba0
[ 456.444734] do_group_exit+0x2d/0xc0
[ 456.444755] get_signal+0x82e/0x900
[ 456.444778] ? netlink_bind+0x3d2/0x420
[ 456.444973] arch_do_signal_or_restart+0x77/0x2b0
[ 456.445002] ? __sys_bind+0xc1/0x120
[ 456.445025] exit_to_user_mode_loop+0x75/0x4a0
[ 456.445054] do_syscall_64+0x439/0xfc0
[ 456.445078] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 456.445106] RIP: 0033:0x47e7bb
[ 456.445130] Code: Unable to access opcode bytes at 0x47e791.
[ 456.445159] RSP: 002b:00007ffe621520c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
[ 456.445199] RAX: 0000000000000000 RBX: 00007ffe621521a0 RCX: 000000000047e7bb
[ 456.445240] RDX: 000000000000000c RSI: 00007ffe621520dc RDI: 0000000000000007
[ 456.445279] RBP: 00007ffe62152100 R08: 0000000000000041 R09: 000000003b7183e0
[ 456.445320] R10: 0000000000000040 R11: 0000000000000246 R12: 00007ffe62152b78
[ 456.445360] R13: 00007ffe62152bf8 R14: 00007ffe62152678 R15: 0000000000543540
[ 456.445400]
[ 456.445414] ---[ end trace 0000000000000000 ]---
[ 456.449949] ------------[ cut here ]------------
[ 456.450016] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: kworker/u16:1/64
[ 456.450114] Modules linked in:
[ 456.450170] CPU: 2 UID: 0 PID: 64 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 456.450262] Tainted: [W]=WARN
[ 456.450317] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 456.450386] Workqueue: netns cleanup_net
[ 456.450445] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 456.450508] 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
[ 456.450639] RSP: 0018:ff77a99b80237c78 EFLAGS: 00010286
[ 456.450702] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 456.450778] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2556dc818e5d00
[ 456.450870] RBP: 0000000000000000 R08: ff2556dc83283cd0 R09: ff2556dc8922f02c
[ 456.450946] R10: ff2556dc8301f118 R11: fefefefefefefeff R12: 0000000000000000
[ 456.451022] R13: 0000000000000011 R14: ff2556dc8301f000 R15: ff2556dc818e5d00
[ 456.451103] FS: 0000000000000000(0000) GS:ff2556dd07f96000(0000) knlGS:0000000000000000
[ 456.451181] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 456.451251] CR2: 00007fa019d45f98 CR3: 0000000004a42002 CR4: 0000000000771ef0
[ 456.451330] PKRU: 55555554
[ 456.451378] Call Trace:
[ 456.451427]
[ 456.451475] unregister_netdevice_many_notify+0x877/0x9d0
[ 456.451540] default_device_exit_batch+0x318/0x390
[ 456.451604] ops_undo_list+0x10b/0x240
[ 456.451662] cleanup_net+0x1d7/0x2e0
[ 456.451719] process_one_work+0x162/0x360
[ 456.451777] worker_thread+0x16e/0x2d0
[ 456.451842] ? rescuer_thread+0x510/0x510
[ 456.451905] kthread+0xe1/0x120
[ 456.451963] ? kthread_park+0xa0/0xa0
[ 456.452020] ret_from_fork+0x16d/0x250
[ 456.452078] ? kthread_park+0xa0/0xa0
[ 456.452135] ret_from_fork_asm+0x11/0x20
[ 456.452193]
[ 456.452241] ---[ end trace 0000000000000000 ]---