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Message-ID: <CANn89iL9Twf+Rzm9v_dwsH_iG4YkW3fAc2Hnx2jypN_Qf9oojw@mail.gmail.com>
Date: Fri, 15 Sep 2023 08:45:07 +0200
From: Eric Dumazet <edumazet@...gle.com>
To: Martin Zaharinov <micron10@...il.com>
Cc: netdev <netdev@...r.kernel.org>, Paolo Abeni <pabeni@...hat.com>, 
	patchwork-bot+netdevbpf@...nel.org, Jakub Kicinski <kuba@...nel.org>, 
	Stephen Hemminger <stephen@...workplumber.org>, kuba+netdrv@...nel.org, dsahern@...il.com
Subject: Re: Urgent Bug Report Kernel crash 6.5.2

On Fri, Sep 15, 2023 at 6:05 AM Martin Zaharinov <micron10@...il.com> wrote:
>
> Hi All
> This is report from kernel 6.5.2 after 4 day up system hang and reboot after this error :
>
>
>
> Sep 15 04:32:29 205.254.184.12 [399661.971344][   C31] kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
> Sep 15 04:32:29 205.254.184.12 [399661.971470][   C31] BUG: unable to handle page fault for address: ffffa10c52d43058
> Sep 15 04:32:29 205.254.184.12 [399661.971586][   C31] #PF: supervisor instruction fetch in kernel mode
> Sep 15 04:32:29 205.254.184.12 [399661.971680][   C31] #PF: error_code(0x0011) - permissions violation
> Sep 15 04:32:29 205.254.184.12 [399661.971775][   C31] PGD 12601067 P4D 12601067 PUD 80000002400001e3
> Sep 15 04:32:29 205.254.184.12 [399661.971871][   C31] Oops: 0011 [#1] PREEMPT SMP
> Sep 15 04:32:29 205.254.184.12 [399661.971963][   C31] CPU: 31 PID: 0 Comm: swapper/31 Tainted: G        W  O       6.5.2 #1
> Sep 15 04:32:29 205.254.184.12 [399661.972079][   C31] Hardware name: Supermicro SYS-5038MR-H8TRF/X10SRD-F, BIOS 3.3 10/28/2020
> Sep 15 04:32:29 205.254.184.12 [399661.972197][   C31] RIP: 0010:0xffffa10c52d43058
> Sep 15 04:32:29 205.254.184.12 [399661.972289][   C31] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 58 30 d4 52 0c a1 ff ff 00 00 00 00 00 00
> Sep 15 04:32:29 205.254.184.12 [399661.972448][   C31] RSP: 0018:ffffad0e0097ccc8 EFLAGS: 00010282
> Sep 15 04:32:29 205.254.184.12 [399661.972543][   C31] RAX: ffffa10c52d43058 RBX: ffffa10c52d43000 RCX: 0000000000000000
> Sep 15 04:32:29 205.254.184.12 [399661.972659][   C31] RDX: 0000000000002712 RSI: 0000000000000246 RDI: ffffa10c52d43000
> Sep 15 04:32:29 205.254.184.12 [399661.972774][   C31] RBP: ffffa10c52d43000 R08: 0000000127a83c46 R09: 0000000000004d8c
> Sep 15 04:32:29 205.254.184.12 [399661.972889][   C31] R10: ffffe840ca0f7c00 R11: 0000000000000000 R12: ffffa10c8e764d80
> Sep 15 04:32:29 205.254.184.12 [399661.973005][   C31] R13: ffffa10c92b4c760 R14: 0000000000000058 R15: ffffa10c92b4c600
> Sep 15 04:32:29 205.254.184.12 [399661.973123][   C31] FS:  0000000000000000(0000) GS:ffffa1125fdc0000(0000) knlGS:0000000000000000
> Sep 15 04:32:29 205.254.184.12 [399661.973244][   C31] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> Sep 15 04:32:29 205.254.184.12 [399661.973338][   C31] CR2: ffffa10c52d43058 CR3: 00000001059b8001 CR4: 00000000003706e0
> Sep 15 04:32:29 205.254.184.12 [399661.973454][   C31] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> Sep 15 04:32:29 205.254.184.12 [399661.973569][   C31] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> Sep 15 04:32:29 205.254.184.12 [399661.973684][   C31] Call Trace:
> Sep 15 04:32:29 205.254.184.12 [399661.973773][   C31]  <IRQ>
> Sep 15 04:32:29 205.254.184.12 [399661.973859][   C31]  ? __die+0xe4/0xf0
> Sep 15 04:32:29 205.254.184.12 [399661.973949][   C31]  ? page_fault_oops+0x144/0x3e0
> Sep 15 04:32:29 205.254.184.12 [399661.974043][   C31]  ? exc_page_fault+0x92/0xa0
> Sep 15 04:32:29 205.254.184.12 [399661.974136][   C31]  ? asm_exc_page_fault+0x22/0x30
> Sep 15 04:32:29 205.254.184.12 [399661.974228][   C31]  ? kfree_skb_reason+0x33/0xf0
> Sep 15 04:32:29 205.254.184.12 [399661.974321][   C31]  ? tcp_mtu_probe+0x3a6/0x7b0
> Sep 15 04:32:29 205.254.184.12 [399661.974416][   C31]  ? tcp_write_xmit+0x7fa/0x1410
> Sep 15 04:32:29 205.254.184.12 [399661.974509][   C31]  ? __tcp_push_pending_frames+0x2d/0xb0
> Sep 15 04:32:29 205.254.184.12 [399661.974603][   C31]  ? tcp_rcv_established+0x381/0x610
> Sep 15 04:32:29 205.254.184.12 [399661.974695][   C31]  ? sk_filter_trim_cap+0xc6/0x1c0
> Sep 15 04:32:29 205.254.184.12 [399661.974787][   C31]  ? tcp_v4_do_rcv+0x11f/0x1f0
> Sep 15 04:32:29 205.254.184.12 [399661.974877][   C31]  ? tcp_v4_rcv+0xfa1/0x1010

Your reports are not usable. Please make sure to include symbols next time.

Please read these parts (and possibly complete files)

Documentation/admin-guide/bug-hunting.rst:55:quality of the stack
trace by using file:`scripts/decode_stacktrace.sh`.

Documentation/admin-guide/reporting-issues.rst:978:
[user@...ething ~]$ sudo dmesg |
./linux-5.10.5/scripts/decode_stacktrace.sh ./linux-5.10.5/vmlinux
Documentation/admin-guide/reporting-issues.rst:985:
[user@...ething ~]$ sudo dmesg |
./linux-5.10.5/scripts/decode_stacktrace.sh \



> Sep 15 04:32:29 205.254.184.12 [399661.974968][   C31]  ? ip_protocol_deliver_rcu+0x1b/0x270
> Sep 15 04:32:29 205.254.184.12 [399661.975062][   C31]  ? ip_local_deliver_finish+0x6d/0x90
> Sep 15 04:32:29 205.254.184.12 [399661.976257][   C31]  ? process_backlog+0x10c/0x230
> Sep 15 04:32:29 205.254.184.12 [399661.976352][   C31]  ? __napi_poll+0x20/0x180
> Sep 15 04:32:29 205.254.184.12 [399661.976442][   C31]  ? net_rx_action+0x2a4/0x390
> Sep 15 04:32:29 205.254.184.12 [399661.976534][   C31]  ? __do_softirq+0xd0/0x202
> Sep 15 04:32:29 205.254.184.12 [399661.976626][   C31]  ? do_softirq+0x3a/0x50
> Sep 15 04:32:29 205.254.184.12 [399661.976718][   C31]  </IRQ>
> Sep 15 04:32:29 205.254.184.12 [399661.976805][   C31]  <TASK>
> Sep 15 04:32:29 205.254.184.12 [399661.976890][   C31]  ? flush_smp_call_function_queue+0x3f/0x50
> Sep 15 04:32:29 205.254.184.12 [399661.976988][   C31]  ? do_idle+0x14d/0x210
> Sep 15 04:32:29 205.254.184.12 [399661.977078][   C31]  ? cpu_startup_entry+0x14/0x20
> Sep 15 04:32:29 205.254.184.12 [399661.977168][   C31]  ? start_secondary+0xe1/0xf0
> Sep 15 04:32:29 205.254.184.12 [399661.977262][   C31]  ? secondary_startup_64_no_verify+0x167/0x16b
> Sep 15 04:32:29 205.254.184.12 [399661.977359][   C31]  </TASK>
> Sep 15 04:32:29 205.254.184.12 [399661.977448][   C31] Modules linked in: nft_limit nf_conntrack_netlink  pppoe pppox ppp_generic slhc nft_ct nft_nat nft_chain_nat nf_tables netconsole coretemp bonding i40e nf_nat_sip nf_conntrack_sip nf_nat_pptp nf_conntrack_pptp nf_nat_tftp nf_conntrack_tftp nf_nat_ftp nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ipmi_si ipmi_devintf ipmi_msghandler rtc_cmos
> Sep 15 04:32:29 205.254.184.12 [399661.977720][   C31] CR2: ffffa10c52d43058
> Sep 15 04:32:29 205.254.184.12 [399661.977809][   C31] ---[ end trace 0000000000000000 ]---
> Sep 15 04:32:29 205.254.184.12 [399661.977901][   C31] RIP: 0010:0xffffa10c52d43058
> Sep 15 04:32:29 205.254.184.12 [399661.977992][   C31] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 58 30 d4 52 0c a1 ff ff 00 00 00 00 00 00
> Sep 15 04:32:29 205.254.184.12 [399661.978150][   C31] RSP: 0018:ffffad0e0097ccc8 EFLAGS: 00010282
> Sep 15 04:32:29 205.254.184.12 [399661.978243][   C31] RAX: ffffa10c52d43058 RBX: ffffa10c52d43000 RCX: 0000000000000000
> Sep 15 04:32:29 205.254.184.12 [399661.978358][   C31] RDX: 0000000000002712 RSI: 0000000000000246 RDI: ffffa10c52d43000
> Sep 15 04:32:29 205.254.184.12 [399661.978472][   C31] RBP: ffffa10c52d43000 R08: 0000000127a83c46 R09: 0000000000004d8c
> Sep 15 04:32:29 205.254.184.12 [399661.978587][   C31] R10: ffffe840ca0f7c00 R11: 0000000000000000 R12: ffffa10c8e764d80
> Sep 15 04:32:29 205.254.184.12 [399661.978702][   C31] R13: ffffa10c92b4c760 R14: 0000000000000058 R15: ffffa10c92b4c600
> Sep 15 04:32:29 205.254.184.12 [399661.978818][   C31] FS:  0000000000000000(0000) GS:ffffa1125fdc0000(0000) knlGS:0000000000000000
> Sep 15 04:32:29 205.254.184.12 [399661.978940][   C31] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> Sep 15 04:32:29 205.254.184.12 [399661.979036][   C31] CR2: ffffa10c52d43058 CR3: 00000001059b8001 CR4: 00000000003706e0
> Sep 15 04:32:29 205.254.184.12 [399661.979150][   C31] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> Sep 15 04:32:29 205.254.184.12 [399661.979265][   C31] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> Sep 15 04:32:29 205.254.184.12 [399661.979381][   C31] Kernel panic - not syncing: Fatal exception in interrupt
> Sep 15 04:32:29 205.254.184.12 [399662.084038][   C31] Kernel Offset: 0x1e000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
> Sep 15 04:32:29 205.254.184.12 [399662.084162][   C31] Rebooting in 10 seconds..
>
>
> Please if find fix update me .
>
> m.

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