[ 2.628888] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this. [ 2.688222] br0: port 1(c1) entered blocking state [ 2.688289] br0: port 1(c1) entered disabled state [ 2.688349] c1: entered allmulticast mode [ 2.688435] c1: entered promiscuous mode [ 2.735096] br0: port 2(c2) entered blocking state [ 2.735165] br0: port 2(c2) entered disabled state [ 2.735222] c2: entered allmulticast mode [ 2.735292] c2: entered promiscuous mode [ 2.781901] br0: port 3(c3) entered blocking state [ 2.781953] br0: port 3(c3) entered disabled state [ 2.782007] c3: entered allmulticast mode [ 2.782080] c3: entered promiscuous mode [ 2.827223] br0: port 4(sender) entered blocking state [ 2.827321] br0: port 4(sender) entered disabled state [ 2.827393] sender: entered allmulticast mode [ 2.827484] sender: entered promiscuous mode [ 2.845190] br0: port 4(sender) entered blocking state [ 2.845279] br0: port 4(sender) entered forwarding state [ 2.845352] br0: port 3(c3) entered blocking state [ 2.845420] br0: port 3(c3) entered forwarding state [ 2.845478] br0: port 2(c2) entered blocking state [ 2.845536] br0: port 2(c2) entered forwarding state [ 2.845593] br0: port 1(c1) entered blocking state [ 2.845664] br0: port 1(c1) entered forwarding state [ 2.859328] Bridge firewalling registered [ 13.759684] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 13.759805] #PF: supervisor write access in kernel mode [ 13.759860] #PF: error_code(0x0002) - not-present page [ 13.759916] PGD 0 P4D 0 [ 13.759951] Oops: Oops: 0002 [#1] SMP [ 13.759995] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 13.760092] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.760161] Workqueue: netns cleanup_net [ 13.760210] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 13.760277] 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 [ 13.760469] RSP: 0018:ffffa79fc0067bb8 EFLAGS: 00010046 [ 13.760523] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000800 [ 13.760604] RDX: ffffa79fc0067bf0 RSI: 0000000000000000 RDI: 0000000000000000 [ 13.760687] RBP: ffffa79fc0067bf0 R08: ffff8aa801393683 R09: 0000000000000002 [ 13.760767] R10: ffff8aa83ec28640 R11: ffff8aa801392e90 R12: 0000000000000000 [ 13.760850] R13: ffffa79fc0067ce8 R14: 0000000000000020 R15: ffffa79fc0067df0 [ 13.760934] FS: 0000000000000000(0000) GS:ffff8aa8817d8000(0000) knlGS:0000000000000000 [ 13.761015] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 13.761080] CR2: 0000000000000000 CR3: 00000000030d4001 CR4: 0000000000772ef0 [ 13.761163] PKRU: 55555554 [ 13.761189] Call Trace: [ 13.761218] [ 13.761248] __cancel_work+0x29/0xe0 [ 13.761293] ? queue_delayed_work_on+0x54/0x60 [ 13.761352] __cancel_work_sync+0x16/0x80 [ 13.761391] __dev_close_many+0x11b/0x280 [ 13.761430] netif_close_many+0x98/0x160 [ 13.761472] unregister_netdevice_many_notify+0x1d8/0xa50 [ 13.761526] ? unregister_netdevice_queue+0x29/0xe0 [ 13.761582] default_device_exit_batch+0x29b/0x300 [ 13.761640] ops_undo_list+0xec/0x1f0 [ 13.761688] cleanup_net+0x1b7/0x2b0 [ 13.761729] process_one_work+0x162/0x380 [ 13.761771] worker_thread+0x299/0x3c0 [ 13.761812] ? rescuer_thread+0x4c0/0x4c0 [ 13.761851] kthread+0x101/0x1f0 [ 13.761894] ? kthreads_online_cpu+0x110/0x110 [ 13.761947] ? kthreads_online_cpu+0x110/0x110 [ 13.762005] ret_from_fork+0x11c/0x140 [ 13.762061] ? kthreads_online_cpu+0x110/0x110 [ 13.762113] ret_from_fork_asm+0x11/0x20 [ 13.762156] [ 13.762180] Modules linked in: nf_conntrack_netlink nfnetlink_queue nft_queue nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables br_netfilter veth bridge stp llc [ 13.762345] CR2: 0000000000000000 [ 13.762383] ---[ end trace 0000000000000000 ]--- [ 13.762435] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 13.762488] 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 [ 13.762680] RSP: 0018:ffffa79fc0067bb8 EFLAGS: 00010046 [ 13.762735] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000800 [ 13.762815] RDX: ffffa79fc0067bf0 RSI: 0000000000000000 RDI: 0000000000000000 [ 13.762901] RBP: ffffa79fc0067bf0 R08: ffff8aa801393683 R09: 0000000000000002 [ 13.762981] R10: ffff8aa83ec28640 R11: ffff8aa801392e90 R12: 0000000000000000 [ 13.763067] R13: ffffa79fc0067ce8 R14: 0000000000000020 R15: ffffa79fc0067df0 [ 13.763152] FS: 0000000000000000(0000) GS:ffff8aa8817d8000(0000) knlGS:0000000000000000 [ 13.763238] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 13.763307] CR2: 0000000000000000 CR3: 00000000030d4001 CR4: 0000000000772ef0 [ 13.763389] PKRU: 55555554 [ 13.763415] note: kworker/u16:0[12] exited with irqs disabled