[ 86.253800][ T566] [ 86.254975][ T566] ============================= [ 86.255327][ T566] WARNING: suspicious RCU usage [ 86.255618][ T566] 6.12.0-rc4-virtme #1 Not tainted [ 86.255903][ T566] ----------------------------- [ 86.256225][ T566] net/netfilter/nf_tables_api.c:3420 RCU-list traversed in non-reader section!! [ 86.256703][ T566] [ 86.256703][ T566] other info that might help us debug this: [ 86.256703][ T566] [ 86.257283][ T566] [ 86.257283][ T566] rcu_scheduler_active = 2, debug_locks = 1 [ 86.257707][ T566] 1 lock held by iptables/566: [ 86.257998][ T566] #0: ffff88803da5acc8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid+0x2e/0xf0 [nf_tables] [ 86.258719][ T566] [ 86.258719][ T566] stack backtrace: [ 86.259160][ T566] CPU: 3 UID: 0 PID: 566 Comm: iptables Not tainted 6.12.0-rc4-virtme #1 [ 86.259553][ T566] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 86.260152][ T566] Call Trace: [ 86.260374][ T566] [ 86.260531][ T566] dump_stack_lvl+0xb0/0xd0 [ 86.260817][ T566] lockdep_rcu_suspicious+0x1ea/0x280 [ 86.261107][ T566] __nft_rule_lookup+0x114/0x150 [nf_tables] [ 86.261519][ T566] nf_tables_newrule+0x46e/0x21d0 [nf_tables] [ 86.261939][ T566] ? net_generic+0xb1/0x1f0 [ 86.262237][ T566] ? __pfx_nf_tables_newrule+0x10/0x10 [nf_tables] [ 86.262635][ T566] ? trace_lock_acquire+0x14d/0x1f0 [ 86.262919][ T566] ? __nla_validate_parse+0x1bc/0x3d0 [ 86.263204][ T566] nfnetlink_rcv_batch+0x83b/0x1560 [ 86.263510][ T566] ? __pfx_nfnetlink_rcv_batch+0x10/0x10 [ 86.263795][ T566] ? rcu_read_lock_any_held+0x7e/0xb0 [ 86.264076][ T566] ? find_stack+0xbc/0x140 [ 86.264363][ T566] ? rcu_read_lock_any_held+0x43/0xb0 [ 86.264622][ T566] ? validate_chain+0x1fe/0xae0 [ 86.264928][ T566] ? __pfx_validate_chain+0x10/0x10 [ 86.265217][ T566] ? __lock_acquire+0xb3f/0x1580 [ 86.265486][ T566] ? __pfx_validate_nla+0x10/0x10 [ 86.265764][ T566] ? find_held_lock+0x2c/0x110 [ 86.266040][ T566] ? __nla_validate_parse+0x1bc/0x3d0 [ 86.266329][ T566] nfnetlink_rcv+0x2c9/0x340 [ 86.266601][ T566] ? __pfx_nfnetlink_rcv+0x10/0x10 [ 86.266867][ T566] ? netlink_deliver_tap+0xc3/0x340 [ 86.267144][ T566] netlink_unicast+0x44b/0x710 [ 86.267420][ T566] ? __pfx_netlink_unicast+0x10/0x10 [ 86.267699][ T566] netlink_sendmsg+0x723/0xbe0 [ 86.267973][ T566] ? __pfx_netlink_sendmsg+0x10/0x10 [ 86.268259][ T566] ? __import_iovec+0x35d/0x5d0 [ 86.268572][ T566] ____sys_sendmsg+0x7ac/0xa10 [ 86.268855][ T566] ? __pfx_____sys_sendmsg+0x10/0x10 [ 86.269139][ T566] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 86.269494][ T566] ? sk_setsockopt+0x9e3/0x2cc0 [ 86.269775][ T566] ? __local_bh_enable_ip+0xa6/0x120 [ 86.270065][ T566] ___sys_sendmsg+0xee/0x170 [ 86.270353][ T566] ? __pfx____sys_sendmsg+0x10/0x10 [ 86.270642][ T566] ? __lock_acquire+0xb3f/0x1580 [ 86.270942][ T566] ? usage_skip+0x152/0x190 [ 86.271230][ T566] ? trace_kfree+0x2d/0xd0 [ 86.271508][ T566] ? kfree+0x2d/0x340 [ 86.271739][ T566] ? do_sock_setsockopt+0x15b/0x3a0 [ 86.272019][ T566] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 86.272317][ T566] ? fdget+0x52/0x1e0 [ 86.272545][ T566] __sys_sendmsg+0xcd/0x170 [ 86.272829][ T566] ? __pfx___sys_sendmsg+0x10/0x10 [ 86.273118][ T566] ? __sys_setsockopt+0x104/0x1a0 [ 86.273407][ T566] ? __pfx___sys_setsockopt+0x10/0x10 [ 86.273719][ T566] do_syscall_64+0xc1/0x1d0 [ 86.274009][ T566] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.274363][ T566] RIP: 0033:0x7f6cafd7d7b7 [ 86.274659][ T566] 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 [ 86.275622][ T566] RSP: 002b:00007ffcb8ea2ea8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 86.276039][ T566] RAX: ffffffffffffffda RBX: 00007ffcb8ea2eb0 RCX: 00007f6cafd7d7b7 [ 86.276462][ T566] RDX: 0000000000000000 RSI: 00007ffcb8ea3f40 RDI: 0000000000000005 [ 86.276877][ T566] RBP: 00007ffcb8ea4540 R08: 0000000000000004 R09: 0000000000000000 [ 86.277322][ T566] R10: 00007f6cafe7ebd8 R11: 0000000000000246 R12: 0000000000006000 [ 86.277755][ T566] R13: 0000000000000001 R14: 00007ffcb8ea2ec0 R15: 00007ffcb8ea4560 [ 86.278210][ T566]