Re: [PATCH net 1/4] netfilter: xt_recent: Fix attempt to update deleted entry

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Am 10.02.21 um 11:34 schrieb Reindl Harald:


Am 07.02.21 um 20:38 schrieb Jozsef Kadlecsik:
On Sun, 7 Feb 2021, Reindl Harald wrote:

well, the most important thing is that the firewall-vm stops to
kernel-panic

why is that still not part of 5.10.14 given how old that issue is :-(

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.14

Probably we missed the window when patches were accepted for the new
release. That's all

probably something is broken in the whole process given that 5.10.15 still don't contain the fix while i am tired of a new "stable release" every few days and 5.10.x like every LTS release in the past few years has a peak of it

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.15

and another useless crash of something which has a ready patch from before 5.10.14

[165940.842226] kernel BUG at lib/list_debug.c:45!
[165940.874769] invalid opcode: 0000 [#1] SMP NOPTI
[165940.876680] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.15-100.fc32.x86_64 #1 [165940.880198] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 12/12/2018
[165940.885314] RIP: 0010:__list_del_entry_valid.cold+0xf/0x47
[165940.886202] Code: fe ff 0f 0b 48 89 d1 4c 89 c6 4c 89 ca 48 c7 c7 60 88 40 b2 e8 cf 45 fe ff 0f 0b 48 89 fe 48 c7 c7 f0 88 40 b2 e8 be 45 fe ff <0f> 0b 48 c7 c7 a0 89 40 b2 e8 b0 45 fe ff 0f 0b 48 89 f2 48 89 fe
[165940.889107] RSP: 0018:ffffaf0480003928 EFLAGS: 00010282
[165940.889943] RAX: 000000000000004e RBX: ffff9fa911148000 RCX: 0000000000000000 [165940.891066] RDX: ffff9fa99d4269e0 RSI: ffff9fa99d418a80 RDI: 0000000000000300 [165940.892190] RBP: ffffaf04800039a0 R08: 0000000000000000 R09: ffffaf0480003760 [165940.893313] R10: ffffaf0480003758 R11: ffffffffb2b44748 R12: ffff9fa9046000f8 [165940.894441] R13: ffff9fa911148010 R14: ffff9fa903329400 R15: ffff9fa904600000 [165940.895573] FS: 0000000000000000(0000) GS:ffff9fa99d400000(0000) knlGS:0000000000000000
[165940.896856] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[165940.897789] CR2: 00007fb9442e5000 CR3: 00000000030a0006 CR4: 00000000003706f0
[165940.898954] Call Trace:
[165940.899400]  <IRQ>
[165940.899757]  recent_mt+0x1b5/0x39b [xt_recent]
[165940.900492]  ? set_match_v4+0x92/0xb0 [xt_set]
[165940.901236]  nft_match_large_eval+0x34/0x60 [nft_compat]
[165940.902104]  nft_do_chain+0x141/0x4e0 [nf_tables]
[165940.902869]  ? fib_validate_source+0x47/0xf0
[165940.903564]  ? ip_route_input_slow+0x722/0xaa0
[165940.904282]  nft_do_chain_ipv4+0x56/0x60 [nf_tables]
[165940.905086]  nf_hook_slow+0x3f/0xb0
[165940.905658]  ip_forward+0x441/0x480
[165940.906230]  ? ip4_key_hashfn+0xb0/0xb0
[165940.906856]  __netif_receive_skb_one_core+0x67/0x70
[165940.907639]  netif_receive_skb+0x35/0x110
[165940.908295]  br_handle_frame_finish+0x17a/0x450 [bridge]
[165940.909143]  ? ip_finish_output2+0x19b/0x560
[165940.909842]  ? br_handle_frame_finish+0x450/0x450 [bridge]
[165940.910718]  br_handle_frame+0x292/0x350 [bridge]
[165940.911483]  ? ip_sublist_rcv_finish+0x57/0x70
[165940.912199]  ? ___slab_alloc+0x127/0x5b0
[165940.912835]  __netif_receive_skb_core+0x196/0xf70
[165940.913590]  ? ip_list_rcv+0x125/0x140
[165940.914201]  __netif_receive_skb_list_core+0x12f/0x2b0
[165940.915024]  netif_receive_skb_list_internal+0x1bc/0x2e0
[165940.915873]  ? vmxnet3_rq_rx_complete+0x8bd/0xde0 [vmxnet3]
[165940.916769]  napi_complete_done+0x6f/0x190
[165940.917439]  vmxnet3_poll_rx_only+0x7b/0xa0 [vmxnet3]
[165940.918249]  net_rx_action+0x135/0x3b0
[165940.918863]  __do_softirq+0xca/0x288
[165940.919451]  asm_call_irq_on_stack+0xf/0x20
[165940.920146]  </IRQ>
[165940.920508]  do_softirq_own_stack+0x37/0x40
[165940.921187]  irq_exit_rcu+0xc2/0x100
[165940.921772]  common_interrupt+0x74/0x130
[165940.922410]  asm_common_interrupt+0x1e/0x40



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