[ 2.685907] nf_conntrack: nf_conntrack: table full in netns 4026532044, dropping packet [ 2.686053] nf_conntrack: nf_conntrack: table full in netns 4026532044, dropping packet [ 2.686119] nf_conntrack: nf_conntrack: table full in netns 4026532044, dropping packet [ 2.686208] nf_conntrack: nf_conntrack: table full in netns 4026532044, dropping packet [ 2.686299] nf_conntrack: nf_conntrack: table full in netns 4026532044, dropping packet [ 2.686372] nf_conntrack: nf_conntrack: table full in netns 4026532044, dropping packet [ 2.686433] nf_conntrack: nf_conntrack: table full in netns 4026532044, dropping packet [ 2.686534] nf_conntrack: nf_conntrack: table full in netns 4026532044, dropping packet [ 2.687098] nf_conntrack: nf_conntrack: table full in netns 4026532044, dropping packet [ 2.687254] nf_conntrack: nf_conntrack: table full in netns 4026532044, dropping packet [ 42.290303] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 42.290394] #PF: supervisor write access in kernel mode [ 42.290438] #PF: error_code(0x0002) - not-present page [ 42.290475] PGD 0 P4D 0 [ 42.290504] Oops: Oops: 0002 [#1] SMP [ 42.290542] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 42.290615] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 42.290667] Workqueue: netns cleanup_net [ 42.290714] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 42.290768] 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 [ 42.290904] RSP: 0018:ffffb98ac0067bb8 EFLAGS: 00010046 [ 42.290943] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 42.291000] RDX: ffffb98ac0067bf0 RSI: 0000000000000000 RDI: 0000000000000000 [ 42.291054] RBP: ffffb98ac0067bf0 R08: ffffffff9a86d160 R09: 0000000000000101 [ 42.291115] R10: ffffffff9b0080d8 R11: ffffb98ac013cff8 R12: 0000000000000000 [ 42.291171] R13: ffffb98ac0067ce8 R14: 0000000000000020 R15: ffffb98ac0067df0 [ 42.291229] FS: 0000000000000000(0000) GS:ffff9fec63558000(0000) knlGS:0000000000000000 [ 42.291293] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.291338] CR2: 0000000000000000 CR3: 000000000ae41001 CR4: 0000000000772ef0 [ 42.291395] PKRU: 55555554 [ 42.291418] Call Trace: [ 42.291443] [ 42.291481] __cancel_work+0x29/0xe0 [ 42.291512] ? dev_deactivate_many+0x2c9/0x300 [ 42.291561] __cancel_work_sync+0x16/0x80 [ 42.291595] __dev_close_many+0x11b/0x280 [ 42.291632] netif_close_many+0x98/0x160 [ 42.291668] unregister_netdevice_many_notify+0x1d8/0xa50 [ 42.291713] default_device_exit_batch+0x29b/0x300 [ 42.291756] ops_undo_list+0xec/0x1f0 [ 42.291790] cleanup_net+0x1b7/0x2b0 [ 42.291823] process_one_work+0x162/0x380 [ 42.291849] worker_thread+0x299/0x3c0 [ 42.291885] ? rescuer_thread+0x4c0/0x4c0 [ 42.291914] kthread+0x101/0x1f0 [ 42.291951] ? kthreads_online_cpu+0x110/0x110 [ 42.291993] ? kthreads_online_cpu+0x110/0x110 [ 42.292027] ret_from_fork+0x11c/0x140 [ 42.292076] ? kthreads_online_cpu+0x110/0x110 [ 42.292117] ret_from_fork_asm+0x11/0x20 [ 42.292156] [ 42.292176] Modules linked in: nf_conntrack_netlink nft_ct nf_tables nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 [ 42.292262] CR2: 0000000000000000 [ 42.292297] ---[ end trace 0000000000000000 ]--- [ 42.292338] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 42.292376] 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 [ 42.292506] RSP: 0018:ffffb98ac0067bb8 EFLAGS: 00010046 [ 42.292548] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 42.292603] RDX: ffffb98ac0067bf0 RSI: 0000000000000000 RDI: 0000000000000000 [ 42.292656] RBP: ffffb98ac0067bf0 R08: ffffffff9a86d160 R09: 0000000000000101 [ 42.292717] R10: ffffffff9b0080d8 R11: ffffb98ac013cff8 R12: 0000000000000000 [ 42.292771] R13: ffffb98ac0067ce8 R14: 0000000000000020 R15: ffffb98ac0067df0 [ 42.292825] FS: 0000000000000000(0000) GS:ffff9fec63558000(0000) knlGS:0000000000000000 [ 42.292889] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.292940] CR2: 0000000000000000 CR3: 000000000ae41001 CR4: 0000000000772ef0 [ 42.292997] PKRU: 55555554 [ 42.293013] note: kworker/u16:0[12] exited with irqs disabled