[ 2.041468] netdevsim netdevsim10 eni10np1: renamed from eth0 [ 2.646113] devlink (254) used greatest stack depth: 12224 bytes left [ 2.646933] netdevsim netdevsim10 eni10np4: renamed from eth3 [ 2.647554] netdevsim netdevsim10 eni10np2: renamed from eth1 [ 2.647813] netdevsim netdevsim10 eni10np3: renamed from eth2 [ 5.199083] netdevsim netdevsim10 eni10np3: renamed from eth2 [ 5.300525] netdevsim netdevsim10 eni10np4: renamed from eth3 [ 7.504588] Failed to register fib notifier [ 7.559531] netdevsim netdevsim10 eni10np1: renamed from eth0 [ 7.581555] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 7.581643] #PF: supervisor write access in kernel mode [ 7.581690] #PF: error_code(0x0002) - not-present page [ 7.581742] PGD 0 P4D 0 [ 7.581774] Oops: Oops: 0002 [#1] SMP [ 7.581817] CPU: 2 UID: 0 PID: 67 Comm: kworker/u16:1 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 7.581909] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 7.581978] Workqueue: netns cleanup_net [ 7.582022] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 7.582081] Code: 83 e6 01 41 57 41 56 4c 8d 77 20 41 55 41 54 41 89 f4 55 48 89 d5 53 48 89 fb 9c 58 fa 48 89 45 00 45 85 e4 0f 85 8a 00 00 00 48 0f ba 2b 00 41 0f 92 c5 72 0e 5b 44 89 e8 5d 41 5c 41 5d 41 [ 7.582250] RSP: 0018:ffffb866c0257bb8 EFLAGS: 00010046 [ 7.582298] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 7.582371] RDX: ffffb866c0257bf0 RSI: 0000000000000000 RDI: 0000000000000000 [ 7.582442] RBP: ffffb866c0257bf0 R08: ffffffff98e50fb0 R09: 0000000000000101 [ 7.582517] R10: ffffffff996080d8 R11: ffffb866c0110ff8 R12: 0000000000000000 [ 7.582589] R13: ffffb866c0257ce8 R14: 0000000000000020 R15: ffffb866c0257df0 [ 7.582666] FS: 0000000000000000(0000) GS:ffff9c6ba4ed9000(0000) knlGS:0000000000000000 [ 7.582749] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.582814] CR2: 0000000000000000 CR3: 000000002bc41005 CR4: 0000000000772ef0 [ 7.582889] PKRU: 55555554 [ 7.582911] Call Trace: [ 7.582940] [ 7.582971] __cancel_work+0x29/0xe0 [ 7.583014] ? dev_deactivate_many+0x2c9/0x300 [ 7.583069] __cancel_work_sync+0x16/0x80 [ 7.583113] __dev_close_many+0x113/0x2b0 [ 7.583151] netif_close_many+0x98/0x160 [ 7.583185] unregister_netdevice_many_notify+0x10c/0xaa0 [ 7.583235] default_device_exit_batch+0x29b/0x300 [ 7.583292] ops_undo_list+0xec/0x1f0 [ 7.583329] cleanup_net+0x1b7/0x2b0 [ 7.583362] process_one_work+0x162/0x380 [ 7.583411] worker_thread+0x299/0x3c0 [ 7.583453] ? rescuer_thread+0x4c0/0x4c0 [ 7.583491] kthread+0x101/0x1f0 [ 7.583527] ? kthreads_online_cpu+0x110/0x110 [ 7.583576] ? kthreads_online_cpu+0x110/0x110 [ 7.583625] ret_from_fork+0x11c/0x140 [ 7.583668] ? kthreads_online_cpu+0x110/0x110 [ 7.583713] ret_from_fork_asm+0x11/0x20 [ 7.583754] [ 7.583783] Modules linked in: netdevsim [ 7.583832] CR2: 0000000000000000 [ 7.583867] ---[ end trace 0000000000000000 ]--- [ 7.583916] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 7.583974] Code: 83 e6 01 41 57 41 56 4c 8d 77 20 41 55 41 54 41 89 f4 55 48 89 d5 53 48 89 fb 9c 58 fa 48 89 45 00 45 85 e4 0f 85 8a 00 00 00 48 0f ba 2b 00 41 0f 92 c5 72 0e 5b 44 89 e8 5d 41 5c 41 5d 41 [ 7.584143] RSP: 0018:ffffb866c0257bb8 EFLAGS: 00010046 [ 7.584192] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 7.584264] RDX: ffffb866c0257bf0 RSI: 0000000000000000 RDI: 0000000000000000 [ 7.584338] RBP: ffffb866c0257bf0 R08: ffffffff98e50fb0 R09: 0000000000000101 [ 7.584412] R10: ffffffff996080d8 R11: ffffb866c0110ff8 R12: 0000000000000000 [ 7.584487] R13: ffffb866c0257ce8 R14: 0000000000000020 R15: ffffb866c0257df0 [ 7.584560] FS: 0000000000000000(0000) GS:ffff9c6ba4ed9000(0000) knlGS:0000000000000000 [ 7.584634] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.584702] CR2: 0000000000000000 CR3: 000000002bc41005 CR4: 0000000000772ef0 [ 7.584775] PKRU: 55555554 [ 7.584808] note: kworker/u16:1[67] exited with irqs disabled WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr