[ 2.178385] sctp: Hash tables configured (bind 256/256) [ 19.782434] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 19.913009] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 19.940837] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 20.109268] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 20.187813] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 20.220352] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 20.348061] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 20.703986] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 20.738911] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 20.752428] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 35.190748] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 35.190817] #PF: supervisor write access in kernel mode [ 35.190849] #PF: error_code(0x0002) - not-present page [ 35.190885] PGD 11762067 P4D 11762067 PUD 11cc3067 PMD 0 [ 35.190924] Oops: Oops: 0002 [#1] SMP [ 35.190954] CPU: 3 UID: 0 PID: 1076 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 35.191015] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 35.191053] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 35.191096] 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 [ 35.191216] RSP: 0018:ffff9ce8c039b628 EFLAGS: 00010046 [ 35.191262] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000000 [ 35.191314] RDX: ffff9ce8c039b660 RSI: 0000000000000000 RDI: 0000000000000000 [ 35.191358] RBP: ffff9ce8c039b660 R08: ffff891c41398883 R09: 0000000000000002 [ 35.191403] R10: ffff891c7eda8640 R11: ffff891c41398090 R12: 0000000000000000 [ 35.191448] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 35.191497] FS: 00007f73423f4800(0000) GS:ffff891ce2758000(0000) knlGS:0000000000000000 [ 35.191547] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.191602] CR2: 0000000000000000 CR3: 000000001143b002 CR4: 0000000000772ef0 [ 35.191648] PKRU: 55555554 [ 35.191669] Call Trace: [ 35.191687] [ 35.191709] __cancel_work+0x29/0xe0 [ 35.191742] ? linkwatch_urgent_event+0x2f/0xb0 [ 35.191794] __cancel_work_sync+0x16/0x80 [ 35.191822] __dev_close_many+0x11b/0x280 [ 35.191852] __dev_change_flags+0xed/0x220 [ 35.191881] netif_change_flags+0x25/0x60 [ 35.191911] dev_change_flags+0x40/0x80 [ 35.191934] cycle_netdev+0x36/0x70 [ 35.191965] vrf_add_slave+0x5a/0xb0 [ 35.191995] do_set_master+0x10b/0x170 [ 35.192023] do_setlink.constprop.0+0x320/0x1120 [ 35.192061] ? __nla_validate_parse+0x5d/0xe70 [ 35.192098] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 35.192143] rtnl_newlink+0x7fa/0xbc0 [ 35.192174] ? virtio_fs_enqueue_req+0x352/0x570 [ 35.192210] ? __rtnl_unlock+0x37/0x60 [ 35.192234] ? netdev_run_todo+0x63/0x550 [ 35.192271] ? rtnl_setlink+0x2c0/0x2c0 [ 35.192304] rtnetlink_rcv_msg+0x358/0x400 [ 35.192333] ? get_page_from_freelist+0x15b4/0x1770 [ 35.192370] ? rtnl_calcit.isra.0+0x110/0x110 [ 35.192408] netlink_rcv_skb+0x57/0x100 [ 35.192444] netlink_unicast+0x252/0x380 [ 35.192473] ? __alloc_skb+0xfc/0x1e0 [ 35.192502] netlink_sendmsg+0x1be/0x3e0 [ 35.192534] ____sys_sendmsg+0x132/0x260 [ 35.192567] ? copy_msghdr_from_user+0x6c/0xa0 [ 35.192613] ___sys_sendmsg+0x87/0xd0 [ 35.192643] ? ___sys_recvmsg+0x87/0xc0 [ 35.192673] ? fsnotify_grab_connector+0x48/0x80 [ 35.192714] ? fsnotify_destroy_marks+0x29/0x150 [ 35.192746] __sys_sendmsg+0x71/0xd0 [ 35.192776] do_syscall_64+0xa4/0xfd0 [ 35.192805] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 35.192843] RIP: 0033:0x7f73425c21d7 [ 35.192872] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [ 35.192986] RSP: 002b:00007ffd560c8ba8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 35.193042] RAX: ffffffffffffffda RBX: 00007ffd560c92e0 RCX: 00007f73425c21d7 [ 35.193096] RDX: 0000000000000000 RSI: 00007ffd560c8c10 RDI: 0000000000000005 [ 35.193158] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000 [ 35.193205] R10: 0000000025daf910 R11: 0000000000000246 R12: 0000000000000003 [ 35.193278] R13: 00000000691cb9e2 R14: 0000000000499600 R15: 0000000000000000 [ 35.193325] [ 35.193347] Modules linked in: nf_conntrack_netlink nft_nat nft_numgen nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 sctp_diag nft_limit tcp_diag inet_diag nfnetlink_queue nft_queue nf_tables veth sctp ip6_udp_tunnel udp_tunnel [ 35.193514] CR2: 0000000000000000 [ 35.193538] ---[ end trace 0000000000000000 ]--- [ 35.193568] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 35.193613] 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 [ 35.193725] RSP: 0018:ffff9ce8c039b628 EFLAGS: 00010046 [ 35.193762] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000000 [ 35.193807] RDX: ffff9ce8c039b660 RSI: 0000000000000000 RDI: 0000000000000000 [ 35.193858] RBP: ffff9ce8c039b660 R08: ffff891c41398883 R09: 0000000000000002 [ 35.193904] R10: ffff891c7eda8640 R11: ffff891c41398090 R12: 0000000000000000 [ 35.193969] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 35.194016] FS: 00007f73423f4800(0000) GS:ffff891ce2758000(0000) knlGS:0000000000000000 [ 35.194068] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.194120] CR2: 0000000000000000 CR3: 000000001143b002 CR4: 0000000000772ef0 [ 35.194169] PKRU: 55555554 [ 35.194189] note: ip[1076] exited with irqs disabled [ 35.194442] ip (1076) used greatest stack depth: 11448 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr