[ 37.262399][ T292] [ 37.262752][ T292] ============================= [ 37.262921][ T292] WARNING: suspicious RCU usage [ 37.263100][ T292] 6.12.0-rc4-virtme #1 Not tainted [ 37.263283][ T292] ----------------------------- [ 37.263447][ T292] net/netfilter/nf_tables_api.c:3420 RCU-list traversed in non-reader section!! [ 37.263726][ T292] [ 37.263726][ T292] other info that might help us debug this: [ 37.263726][ T292] [ 37.264040][ T292] [ 37.264040][ T292] rcu_scheduler_active = 2, debug_locks = 1 [ 37.264608][ T292] 1 lock held by iptables/292: [ 37.264777][ T292] #0: ffff888004467ac8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid+0x2e/0xf0 [nf_tables] [ 37.265231][ T292] [ 37.265231][ T292] stack backtrace: [ 37.265439][ T292] CPU: 1 UID: 0 PID: 292 Comm: iptables Not tainted 6.12.0-rc4-virtme #1 [ 37.265681][ T292] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 37.266035][ T292] Call Trace: [ 37.266165][ T292] [ 37.266254][ T292] dump_stack_lvl+0xb0/0xd0 [ 37.266429][ T292] lockdep_rcu_suspicious+0x1ea/0x280 [ 37.266600][ T292] __nft_rule_lookup+0x114/0x150 [nf_tables] [ 37.266826][ T292] nf_tables_newrule+0x46e/0x21d0 [nf_tables] [ 37.267068][ T292] ? net_generic+0xb1/0x1f0 [ 37.267237][ T292] ? __pfx_nf_tables_newrule+0x10/0x10 [nf_tables] [ 37.267464][ T292] ? trace_lock_acquire+0x14d/0x1f0 [ 37.267636][ T292] ? __nla_validate_parse+0x1bc/0x3d0 [ 37.267807][ T292] nfnetlink_rcv_batch+0x83b/0x1560 [ 37.267989][ T292] ? __pfx_nfnetlink_rcv_batch+0x10/0x10 [ 37.268153][ T292] ? rcu_read_lock_any_held+0x7e/0xb0 [ 37.268315][ T292] ? find_stack+0xbc/0x140 [ 37.268484][ T292] ? rcu_read_lock_any_held+0x43/0xb0 [ 37.268646][ T292] ? validate_chain+0x1fe/0xae0 [ 37.268822][ T292] ? __pfx_validate_chain+0x10/0x10 [ 37.268992][ T292] ? __lock_acquire+0xb3f/0x1580 [ 37.269156][ T292] ? __pfx_validate_nla+0x10/0x10 [ 37.269328][ T292] ? find_held_lock+0x2c/0x110 [ 37.269494][ T292] ? __nla_validate_parse+0x1bc/0x3d0 [ 37.269664][ T292] nfnetlink_rcv+0x2c9/0x340 [ 37.269827][ T292] ? __pfx_nfnetlink_rcv+0x10/0x10 [ 37.269992][ T292] ? netlink_deliver_tap+0xc3/0x340 [ 37.270160][ T292] netlink_unicast+0x44b/0x710 [ 37.270326][ T292] ? __pfx_netlink_unicast+0x10/0x10 [ 37.270496][ T292] netlink_sendmsg+0x723/0xbe0 [ 37.270666][ T292] ? __pfx_netlink_sendmsg+0x10/0x10 [ 37.270831][ T292] ? __import_iovec+0x35d/0x5d0 [ 37.271012][ T292] ____sys_sendmsg+0x7ac/0xa10 [ 37.271184][ T292] ? __pfx_____sys_sendmsg+0x10/0x10 [ 37.271344][ T292] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 37.271552][ T292] ? sk_setsockopt+0x9e3/0x2cc0 [ 37.271711][ T292] ? __local_bh_enable_ip+0xa6/0x120 [ 37.271880][ T292] ___sys_sendmsg+0xee/0x170 [ 37.272052][ T292] ? __pfx____sys_sendmsg+0x10/0x10 [ 37.272220][ T292] ? __lock_acquire+0xb3f/0x1580 [ 37.272383][ T292] ? usage_skip+0x152/0x190 [ 37.272548][ T292] ? trace_kfree+0x2d/0xd0 [ 37.272711][ T292] ? kfree+0x2d/0x340 [ 37.272841][ T292] ? do_sock_setsockopt+0x15b/0x3a0 [ 37.273004][ T292] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 37.273173][ T292] ? fdget+0x52/0x1e0 [ 37.273308][ T292] __sys_sendmsg+0xcd/0x170 [ 37.273471][ T292] ? __pfx___sys_sendmsg+0x10/0x10 [ 37.273632][ T292] ? __sys_setsockopt+0x104/0x1a0 [ 37.273796][ T292] ? __pfx___sys_setsockopt+0x10/0x10 [ 37.273974][ T292] do_syscall_64+0xc1/0x1d0 [ 37.274141][ T292] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 37.274346][ T292] RIP: 0033:0x7f0ad88057b7 [ 37.274519][ T292] Code: 0a 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 [ 37.275082][ T292] RSP: 002b:00007fff565cd788 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 37.275327][ T292] RAX: ffffffffffffffda RBX: 00007fff565cd790 RCX: 00007f0ad88057b7 [ 37.275568][ T292] RDX: 0000000000000000 RSI: 00007fff565ce820 RDI: 0000000000000005 [ 37.275812][ T292] RBP: 00007fff565cee20 R08: 0000000000000004 R09: 0000000000000000 [ 37.276057][ T292] R10: 00007f0ad8906bd8 R11: 0000000000000246 R12: 0000000000006000 [ 37.276301][ T292] R13: 0000000000000001 R14: 00007fff565cd7a0 R15: 00007fff565cee40 [ 37.276557][ T292]