Re: kernel error from CU 162, PC Engines apu4

Re: kernel error from CU 162, PC Engines apu4

[Michael Tremer]

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Hello Jon,

> On 8 Jan 2022, at 19:59, Jon Murphy <jcmurphy26(a)gmail.com> wrote:
> 
> I found this kernel error from last night.  Do you want to know about these?

Yes, I think we know about this one. It looks very similar to what Mathias has been reporting a couple of times and it is connected to the NFQUEUE module that we use for the IPS. It does not seem to be connected at all to the hardware.

> Should I be adding these to bugzilla?  Or post in the Community?

If there isn’t a ticket, yet, please open one. Things like this should never go to Community. That is for support questions and the bug tracker is for bugs :)

-Michael

> 
> Best regards,
> Jon
> 
> 
> ========
> 
> 
> System versions
> 
> IPFire version	IPFire 2.27 (x86_64) - core162
> Pakfire version	2.27-x86_64
> Kernel version	Linux ipfire.localdomain 5.15.6-ipfire #1 SMP Sun Dec 19 10:54:26 GMT 2021 x86_64 AMD GX-412TC SOC AuthenticAMD GNU/Linux
> 
> 
> ==============
> 
> Jan  7 22:09:40 ipfire kernel: ------------[ cut here ]------------
> Jan  7 22:09:40 ipfire kernel: refcount_t: underflow; use-after-free.
> Jan  7 22:09:40 ipfire kernel: WARNING: CPU: 1 PID: 17992 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110
> Jan  7 22:09:40 ipfire kernel: Modules linked in: ledtrig_netdev ledtrig_heartbeat tun nfnetlink_queue xt_NFQUEUE xt_MASQUERADE cfg80211 rfkill 8021q garp xt_ipp2p(O) compat_xtables(O) xt_geoip(O) xt_multiport xt_mac xt_REDIRECT xt_hashlimit xt_policy xt_TCPMSS xt_conntrack xt_comment ipt_REJECT nf_reject_ipv4 xt_LOG xt_limit xt_mark xt_connmark nf_log_syslog iptable_raw iptable_mangle iptable_filter vfat fat amd64_edac edac_mce_amd kvm_amd sch_fq_codel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcspkr sp5100_tco fam15h_power k10temp i2c_piix4 igb ptp pps_core dca ccp i2c_algo_bit i2c_core leds_gpio pinctrl_amd gpio_keys acpi_cpufreq lp parport_pc parport video sdhci_pci cqhci sdhci mmc_core
> Jan  7 22:09:40 ipfire kernel: CPU: 1 PID: 17992 Comm: W-NFQ#1 Tainted: G           O      5.15.6-ipfire #1
> Jan  7 22:09:40 ipfire kernel: Hardware name: PC Engines apu4/apu4, BIOS v4.15.0.1 11/23/2021
> Jan  7 22:09:40 ipfire kernel: RIP: 0010:refcount_warn_saturate+0xba/0x110
> Jan  7 22:09:40 ipfire kernel: Code: 01 01 e8 32 91 59 00 0f 0b 31 f6 89 f7 c3 80 3d 14 8d 39 01 00 75 85 48 c7 c7 98 f6 f3 8b c6 05 04 8d 39 01 01 e8 0f 91 59 00 <0f> 0b 31 f6 89 f7 c3 80 3d ef 8c 39 01 00 0f 85 5e ff ff ff 48 c7
> Jan  7 22:09:40 ipfire kernel: RSP: 0018:ffffb583c8c4f868 EFLAGS: 00010246
> Jan  7 22:09:40 ipfire kernel: RAX: 0000000000000000 RBX: ffffa0f9c1bf8200 RCX: 0000000000000000
> Jan  7 22:09:40 ipfire kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
> Jan  7 22:09:40 ipfire kernel: RBP: ffffa0f9c1bf8200 R08: 0000000000000000 R09: 0000000000000000
> Jan  7 22:09:40 ipfire kernel: R10: 0000000000000000 R11: 0000000000000000 R12: ffffa0f9c1bf8200
> Jan  7 22:09:40 ipfire kernel: R13: 0000000000000000 R14: 0000000000000005 R15: ffffa0f9c3b12100
> Jan  7 22:09:40 ipfire kernel: FS:  000079dc0ba4e640(0000) GS:ffffa0f9eac80000(0000) knlGS:0000000000000000
> Jan  7 22:09:40 ipfire kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> Jan  7 22:09:40 ipfire kernel: CR2: 0000716fa42b7bc8 CR3: 0000000103486000 CR4: 00000000000406e0
> Jan  7 22:09:40 ipfire kernel: Call Trace:
> Jan  7 22:09:40 ipfire kernel:  <TASK>
> Jan  7 22:09:40 ipfire kernel:  nf_queue_entry_release_refs+0x8b/0xa0
> Jan  7 22:09:40 ipfire kernel:  nf_reinject+0x7a/0x1e0
> Jan  7 22:09:40 ipfire kernel:  nfqnl_recv_verdict+0x303/0x4f0 [nfnetlink_queue]
> Jan  7 22:09:40 ipfire kernel:  nfnetlink_rcv_msg+0x251/0x310
> Jan  7 22:09:40 ipfire kernel:  ? nfnetlink_net_init+0xa0/0xa0
> Jan  7 22:09:40 ipfire kernel:  netlink_rcv_skb+0x5b/0x110
> Jan  7 22:09:40 ipfire kernel:  netlink_unicast+0x215/0x2e0
> Jan  7 22:09:40 ipfire kernel:  netlink_sendmsg+0x233/0x480
> Jan  7 22:09:40 ipfire kernel:  ? netlink_unicast+0x2e0/0x2e0
> Jan  7 22:09:40 ipfire kernel:  ____sys_sendmsg+0x2a6/0x2e0
> Jan  7 22:09:40 ipfire kernel:  ___sys_sendmsg+0xa3/0x100
> Jan  7 22:09:40 ipfire kernel:  __sys_sendmsg+0x81/0xe0
> Jan  7 22:09:40 ipfire kernel:  do_syscall_64+0x5c/0x90
> Jan  7 22:09:40 ipfire kernel:  ? syscall_exit_to_user_mode+0x23/0x50
> Jan  7 22:09:40 ipfire kernel:  ? __x64_sys_recvfrom+0x20/0x40
> Jan  7 22:09:40 ipfire kernel:  ? do_syscall_64+0x69/0x90
> Jan  7 22:09:40 ipfire kernel:  entry_SYSCALL_64_after_hwframe+0x44/0xae
> Jan  7 22:09:40 ipfire kernel: RIP: 0033:0x79dc0e2eb62d
> Jan  7 22:09:40 ipfire kernel: Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 fa ee ff ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 33 44 89 c7 48 89 44 24 08 e8 4e ef ff ff 48
> Jan  7 22:09:40 ipfire kernel: RSP: 002b:000079dc0ba4bf40 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
> Jan  7 22:09:40 ipfire kernel: RAX: ffffffffffffffda RBX: 000079dbfc268dd0 RCX: 000079dc0e2eb62d
> Jan  7 22:09:40 ipfire kernel: RDX: 0000000000000000 RSI: 000079dc0ba4bf80 RDI: 0000000000000006
> Jan  7 22:09:40 ipfire kernel: RBP: 000079dc0ba4bfe0 R08: 0000000000000000 R09: 000079dc0d9c9de0
> Jan  7 22:09:40 ipfire kernel: R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
> Jan  7 22:09:40 ipfire kernel: R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000080
> Jan  7 22:09:40 ipfire kernel:  </TASK>
> Jan  7 22:09:40 ipfire kernel: ---[ end trace 9676210543ac4447 ]---
>