[ 1.781561] netdevsim netdevsim1337 eni1337np1: renamed from eth0 [ 260.832924] netdevsim: Exceeded number of supported nexthops [ 261.044865] netdevsim: Failed to replace nexthop bucket [ 261.044923] netdevsim: Failed to replace nexthop bucket [ 261.287128] Failed to register nexthop notifier [ 261.377128] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 261.377221] #PF: supervisor write access in kernel mode [ 261.377273] #PF: error_code(0x0002) - not-present page [ 261.377324] PGD 0 P4D 0 [ 261.377364] Oops: Oops: 0002 [#1] SMP [ 261.377418] CPU: 3 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 261.377514] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 261.377580] Workqueue: netns cleanup_net [ 261.377645] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 261.377721] 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 [ 261.377897] RSP: 0000:ffffab058024fbb8 EFLAGS: 00010046 [ 261.377946] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 261.378023] RDX: ffffab058024fbf0 RSI: 0000000000000000 RDI: 0000000000000000 [ 261.378093] RBP: ffffab058024fbf0 R08: ffffffffb0e50fb0 R09: 0000000000000101 [ 261.378161] R10: ffffffffb16080d8 R11: ffffab058013cff8 R12: 0000000000000000 [ 261.378233] R13: ffffab058024fce8 R14: 0000000000000020 R15: ffffab058024fdf0 [ 261.378312] FS: 0000000000000000(0000) GS:ffff95db0cf59000(0000) knlGS:0000000000000000 [ 261.378396] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 261.378462] CR2: 0000000000000000 CR3: 0000000002d66001 CR4: 0000000000772ef0 [ 261.378539] PKRU: 55555554 [ 261.378562] Call Trace: [ 261.378600] [ 261.378639] __cancel_work+0x29/0xe0 [ 261.378686] ? dev_deactivate_many+0x2c9/0x300 [ 261.378751] __cancel_work_sync+0x16/0x80 [ 261.378790] __dev_close_many+0x113/0x2b0 [ 261.378838] netif_close_many+0x98/0x160 [ 261.378879] ? rcu_barrier_entrain+0xb0/0xb0 [ 261.378938] unregister_netdevice_many_notify+0x10c/0xaa0 [ 261.378999] default_device_exit_batch+0x29b/0x300 [ 261.379059] ops_undo_list+0xec/0x1f0 [ 261.379098] cleanup_net+0x1b7/0x2b0 [ 261.379141] process_one_work+0x162/0x380 [ 261.379177] worker_thread+0x299/0x3c0 [ 261.379221] ? rescuer_thread+0x4c0/0x4c0 [ 261.379259] kthread+0x101/0x1f0 [ 261.379305] ? kthreads_online_cpu+0x110/0x110 [ 261.379361] ? kthreads_online_cpu+0x110/0x110 [ 261.379417] ret_from_fork+0x11c/0x140 [ 261.379469] ? kthreads_online_cpu+0x110/0x110 [ 261.379527] ret_from_fork_asm+0x11/0x20 [ 261.379578] [ 261.379606] Modules linked in: netdevsim [ 261.379658] CR2: 0000000000000000 [ 261.379701] ---[ end trace 0000000000000000 ]--- [ 261.379752] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 261.379807] 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 [ 261.379980] RSP: 0000:ffffab058024fbb8 EFLAGS: 00010046 [ 261.380037] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 261.380111] RDX: ffffab058024fbf0 RSI: 0000000000000000 RDI: 0000000000000000 [ 261.380185] RBP: ffffab058024fbf0 R08: ffffffffb0e50fb0 R09: 0000000000000101 [ 261.380266] R10: ffffffffb16080d8 R11: ffffab058013cff8 R12: 0000000000000000 [ 261.380341] R13: ffffab058024fce8 R14: 0000000000000020 R15: ffffab058024fdf0 [ 261.380416] FS: 0000000000000000(0000) GS:ffff95db0cf59000(0000) knlGS:0000000000000000 [ 261.380491] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 261.380551] CR2: 0000000000000000 CR3: 0000000002d66001 CR4: 0000000000772ef0 [ 261.380628] PKRU: 55555554 [ 261.380651] note: kworker/u16:1[66] exited with irqs disabled WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr