[ 6179.475035][T29649] [ 6179.475396][T29649] ============================= [ 6179.475605][T29649] WARNING: suspicious RCU usage [ 6179.476800][T29649] 6.12.0-rc4-virtme #1 Not tainted [ 6179.476970][T29649] ----------------------------- [ 6179.477131][T29649] net/netfilter/nf_tables_api.c:3420 RCU-list traversed in non-reader section!! [ 6179.477411][T29649] [ 6179.477411][T29649] other info that might help us debug this: [ 6179.477411][T29649] [ 6179.477732][T29649] [ 6179.477732][T29649] rcu_scheduler_active = 2, debug_locks = 1 [ 6179.477976][T29649] 1 lock held by iptables/29649: [ 6179.478150][T29649] #0: ffff88800b44fac8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid+0x2e/0xf0 [nf_tables] [ 6179.478577][T29649] [ 6179.478577][T29649] stack backtrace: [ 6179.478791][T29649] CPU: 0 UID: 0 PID: 29649 Comm: iptables Not tainted 6.12.0-rc4-virtme #1 [ 6179.479072][T29649] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 6179.479852][T29649] Call Trace: [ 6179.479981][T29649] [ 6179.480071][T29649] dump_stack_lvl+0xb0/0xd0 [ 6179.480253][T29649] lockdep_rcu_suspicious+0x1ea/0x280 [ 6179.480420][T29649] __nft_rule_lookup+0x114/0x150 [nf_tables] [ 6179.480648][T29649] nf_tables_delrule+0x417/0xc90 [nf_tables] [ 6179.480875][T29649] ? __lock_release+0x103/0x460 [ 6179.481048][T29649] ? net_generic+0xb1/0x1f0 [ 6179.481220][T29649] ? __pfx_nf_tables_delrule+0x10/0x10 [nf_tables] [ 6179.481448][T29649] ? trace_lock_acquire+0x14d/0x1f0 [ 6179.481617][T29649] ? __nla_validate_parse+0x1bc/0x3d0 [ 6179.481787][T29649] nfnetlink_rcv_batch+0x83b/0x1560 [ 6179.481965][T29649] ? __pfx_nfnetlink_rcv_batch+0x10/0x10 [ 6179.482139][T29649] ? rcu_read_lock_any_held+0x7e/0xb0 [ 6179.482301][T29649] ? find_stack+0xbc/0x140 [ 6179.482471][T29649] ? rcu_read_lock_any_held+0x43/0xb0 [ 6179.482631][T29649] ? validate_chain+0x1fe/0xae0 [ 6179.482810][T29649] ? __pfx_validate_chain+0x10/0x10 [ 6179.482980][T29649] ? __lock_acquire+0xb3f/0x1580 [ 6179.483140][T29649] ? __pfx_validate_nla+0x10/0x10 [ 6179.483316][T29649] ? find_held_lock+0x2c/0x110 [ 6179.483487][T29649] ? __nla_validate_parse+0x1bc/0x3d0 [ 6179.483656][T29649] nfnetlink_rcv+0x2c9/0x340 [ 6179.483823][T29649] ? __pfx_nfnetlink_rcv+0x10/0x10 [ 6179.483992][T29649] ? netlink_deliver_tap+0xc3/0x340 [ 6179.484156][T29649] netlink_unicast+0x44b/0x710 [ 6179.484335][T29649] ? __pfx_netlink_unicast+0x10/0x10 [ 6179.484497][T29649] ? find_held_lock+0x2c/0x110 [ 6179.484662][T29649] netlink_sendmsg+0x723/0xbe0 [ 6179.484828][T29649] ? __pfx_netlink_sendmsg+0x10/0x10 [ 6179.484990][T29649] ? __might_fault+0xc3/0x170 [ 6179.485162][T29649] ? __import_iovec+0x35d/0x5d0 [ 6179.485335][T29649] ____sys_sendmsg+0x7ac/0xa10 [ 6179.485498][T29649] ? __pfx_____sys_sendmsg+0x10/0x10 [ 6179.485662][T29649] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 6179.485866][T29649] ? sk_setsockopt+0x9e3/0x2cc0 [ 6179.486028][T29649] ? __local_bh_enable_ip+0xa6/0x120 [ 6179.486200][T29649] ___sys_sendmsg+0xee/0x170 [ 6179.486369][T29649] ? __pfx____sys_sendmsg+0x10/0x10 [ 6179.486533][T29649] ? __lock_acquire+0xb3f/0x1580 [ 6179.486699][T29649] ? usage_skip+0x172/0x190 [ 6179.486861][T29649] ? trace_kfree+0x2d/0xd0 [ 6179.487025][T29649] ? kfree+0x2d/0x340 [ 6179.487154][T29649] ? do_sock_setsockopt+0x15b/0x3a0 [ 6179.487317][T29649] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 6179.487491][T29649] ? fdget+0x52/0x1e0 [ 6179.487622][T29649] __sys_sendmsg+0xcd/0x170 [ 6179.487789][T29649] ? __pfx___sys_sendmsg+0x10/0x10 [ 6179.487972][T29649] ? __sys_setsockopt+0x104/0x1a0 [ 6179.488135][T29649] ? __pfx___sys_setsockopt+0x10/0x10 [ 6179.488312][T29649] do_syscall_64+0xc1/0x1d0 [ 6179.488488][T29649] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 6179.488687][T29649] RIP: 0033:0x7f49f0e787b7 [ 6179.488856][T29649] 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 [ 6179.489423][T29649] RSP: 002b:00007fff4942ef98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 6179.489672][T29649] RAX: ffffffffffffffda RBX: 00007fff4942efa0 RCX: 00007f49f0e787b7 [ 6179.489920][T29649] RDX: 0000000000000000 RSI: 00007fff49430030 RDI: 0000000000000005 [ 6179.490159][T29649] RBP: 00007fff49430630 R08: 0000000000000004 R09: 0000000000000000 [ 6179.490402][T29649] R10: 00007fff4943001c R11: 0000000000000246 R12: 0000000000004000 [ 6179.490646][T29649] R13: 0000000000000001 R14: 00007fff4942efb0 R15: 00007fff49430650 [ 6179.490898][T29649]