[ 178.274405][ T1131] [ 178.274797][ T1131] ============================= [ 178.274975][ T1131] WARNING: suspicious RCU usage [ 178.275150][ T1131] 6.12.0-rc4-virtme #1 Not tainted [ 178.275338][ T1131] ----------------------------- [ 178.275528][ T1131] net/netfilter/nf_tables_api.c:3420 RCU-list traversed in non-reader section!! [ 178.275825][ T1131] [ 178.275825][ T1131] other info that might help us debug this: [ 178.275825][ T1131] [ 178.276158][ T1131] [ 178.276158][ T1131] rcu_scheduler_active = 2, debug_locks = 1 [ 178.276455][ T1131] 1 lock held by iptables/1131: [ 178.276629][ T1131] #0: ffff888006bb20c8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid+0x2e/0xf0 [nf_tables] [ 178.277442][ T1131] [ 178.277442][ T1131] stack backtrace: [ 178.277661][ T1131] CPU: 1 UID: 0 PID: 1131 Comm: iptables Not tainted 6.12.0-rc4-virtme #1 [ 178.277932][ T1131] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 178.278309][ T1131] Call Trace: [ 178.278449][ T1131] [ 178.278552][ T1131] dump_stack_lvl+0xb0/0xd0 [ 178.278734][ T1131] lockdep_rcu_suspicious+0x1ea/0x280 [ 178.278911][ T1131] __nft_rule_lookup+0x114/0x150 [nf_tables] [ 178.279149][ T1131] nf_tables_newrule+0x46e/0x21d0 [nf_tables] [ 178.279395][ T1131] ? net_generic+0xb1/0x1f0 [ 178.279605][ T1131] ? __pfx_nf_tables_newrule+0x10/0x10 [nf_tables] [ 178.279846][ T1131] ? trace_lock_acquire+0x14d/0x1f0 [ 178.280027][ T1131] ? __nla_validate_parse+0x1bc/0x3d0 [ 178.280209][ T1131] nfnetlink_rcv_batch+0x83b/0x1560 [ 178.280429][ T1131] ? __pfx_nfnetlink_rcv_batch+0x10/0x10 [ 178.280602][ T1131] ? rcu_read_lock_any_held+0x7e/0xb0 [ 178.280774][ T1131] ? find_stack+0xbc/0x140 [ 178.280951][ T1131] ? rcu_read_lock_any_held+0x43/0xb0 [ 178.281125][ T1131] ? validate_chain+0x1fe/0xae0 [ 178.281312][ T1131] ? __pfx_validate_chain+0x10/0x10 [ 178.281494][ T1131] ? __lock_acquire+0xb3f/0x1580 [ 178.281670][ T1131] ? __pfx_validate_nla+0x10/0x10 [ 178.281852][ T1131] ? find_held_lock+0x2c/0x110 [ 178.282028][ T1131] ? __nla_validate_parse+0x1bc/0x3d0 [ 178.282206][ T1131] nfnetlink_rcv+0x2c9/0x340 [ 178.282379][ T1131] ? __pfx_nfnetlink_rcv+0x10/0x10 [ 178.282557][ T1131] ? netlink_deliver_tap+0xc3/0x340 [ 178.282731][ T1131] netlink_unicast+0x44b/0x710 [ 178.282911][ T1131] ? __pfx_netlink_unicast+0x10/0x10 [ 178.283089][ T1131] netlink_sendmsg+0x723/0xbe0 [ 178.283265][ T1131] ? __pfx_netlink_sendmsg+0x10/0x10 [ 178.283440][ T1131] ? __import_iovec+0x35d/0x5d0 [ 178.283621][ T1131] ____sys_sendmsg+0x7ac/0xa10 [ 178.283795][ T1131] ? __pfx_____sys_sendmsg+0x10/0x10 [ 178.283966][ T1131] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 178.284185][ T1131] ? sk_setsockopt+0x9e3/0x2cc0 [ 178.284388][ T1131] ? __local_bh_enable_ip+0xa6/0x120 [ 178.284566][ T1131] ___sys_sendmsg+0xee/0x170 [ 178.284740][ T1131] ? __pfx____sys_sendmsg+0x10/0x10 [ 178.284916][ T1131] ? __lock_acquire+0xb3f/0x1580 [ 178.285088][ T1131] ? usage_skip+0x152/0x190 [ 178.285263][ T1131] ? trace_kfree+0x2d/0xd0 [ 178.285435][ T1131] ? kfree+0x2d/0x340 [ 178.285576][ T1131] ? do_sock_setsockopt+0x15b/0x3a0 [ 178.285746][ T1131] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 178.285926][ T1131] ? fdget+0x52/0x1e0 [ 178.286062][ T1131] __sys_sendmsg+0xcd/0x170 [ 178.286232][ T1131] ? __pfx___sys_sendmsg+0x10/0x10 [ 178.286403][ T1131] ? __sys_setsockopt+0x104/0x1a0 [ 178.286576][ T1131] ? __pfx___sys_setsockopt+0x10/0x10 [ 178.286774][ T1131] do_syscall_64+0xc1/0x1d0 [ 178.286946][ T1131] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 178.287162][ T1131] RIP: 0033:0x7f4f0def57b7 [ 178.287346][ T1131] 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 [ 178.287928][ T1131] RSP: 002b:00007ffdb133e048 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 178.288185][ T1131] RAX: ffffffffffffffda RBX: 00007ffdb133e050 RCX: 00007f4f0def57b7 [ 178.288471][ T1131] RDX: 0000000000000000 RSI: 00007ffdb133f0e0 RDI: 0000000000000005 [ 178.288727][ T1131] RBP: 00007ffdb133f6e0 R08: 0000000000000004 R09: 0000000000000000 [ 178.288980][ T1131] R10: 00007f4f0dff6bd8 R11: 0000000000000246 R12: 0000000000005000 [ 178.289233][ T1131] R13: 0000000000000001 R14: 00007ffdb133e060 R15: 00007ffdb133f700 [ 178.289503][ T1131] [ 182.446722][ T1151] ip (1151) used greatest stack depth: 23424 bytes left