RHEL 7: kernel panic at ipt_do_table+0x320
Issue
- kernel panic with below logs:
[5990767.731008] sched: RT throttling activated
[6112730.589276] CIFS VFS: BAD_NETWORK_NAME: \\ulinedm.com\resources$
[6112809.109979] CIFS VFS: BAD_NETWORK_NAME: \\ulinedm.com\resources$
[6628332.347417] CIFS VFS: BAD_NETWORK_NAME: \\ulinedm.com\resources$
[8085463.144922] BUG: unable to handle kernel NULL pointer dereference at 000000000000005a
[8085463.145015] IP: [<ffffffffc058c6e0>] ipt_do_table+0x320/0x740 [ip_tables]
[8085463.145164] PGD 0
[8085463.145348] Oops: 0000 [#1] SMP
[8085463.145541] Modules linked in: udp_diag bridge stp llc iscsi_target_mod target_core_mod tcp_diag inet_diag cmac arc4 md4 nls_utf8 cifs ccm dns_resolver nfsv3 nfs fscache xt_owner iptable_filter unix_diag binfmt_misc vmw_vsock_vmci_transport vsock sb_edac iosf_mbi crc32_pclmul ghash_clmulni_intel ppdev aesni_intel vmw_balloon lrw gf128mul glue_helper ablk_helper cryptd pcspkr joydev sg i2c_piix4 vmw_vmci parport_pc parport nfsd nfs_acl lockd grace auth_rpcgss sunrpc ip_tables xfs libcrc32c sr_mod cdrom ata_generic pata_acpi vmwgfx drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops sd_mod crc_t10dif ttm crct10dif_generic ata_piix nfit drm libata libnvdimm crct10dif_pclmul crct10dif_common crc32c_intel serio_raw vmxnet3 vmw_pvscsi drm_panel_orientation_quirks dm_mirror dm_region_hash dm_log
[8085463.146597] dm_mod fuse
[8085463.146613] CPU: 4 PID: 0 Comm: swapper/4 Kdump: loaded Not tainted 3.10.0-1160.31.1.el7.x86_64 #1
[8085463.146758] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 09/19/2018
[8085463.146927] task: ffff8e12595b8000 ti: ffff8e12595b4000 task.ti: ffff8e12595b4000
[8085463.147620] RIP: 0010:[<ffffffffc058c6e0>] [<ffffffffc058c6e0>] ipt_do_table+0x320/0x740 [ip_tables]
[8085463.147654] RSP: 0018:ffff8e213fd03750 EFLAGS: 00010246
[8085463.147669] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[8085463.147692] RDX: 0000000000000034 RSI: ffff8e2018c70b80 RDI: 0000000000000000
[8085463.147711] RBP: ffff8e213fd03890 R08: ffff8e213fd03928 R09: 0000000000000001
[8085463.147729] R10: ffff8e1b8471ebd8 R11: ffff8e20fa868000 R12: ffff8e1779017cdc
[8085463.147748] R13: ffff8e1b8471ebd8 R14: ffffffffc05915f8 R15: ffff8e18b36bc400
[8085463.147767] FS: 0000000000000000(0000) GS:ffff8e213fd00000(0000) knlGS:0000000000000000
[8085463.147787] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[8085463.147803] CR2: 000000000000005a CR3: 0000000e787dc000 CR4: 00000000001607e0
[8085463.147880] Call Trace:
[8085463.147890] <IRQ>
[8085463.147907] [<ffffffff97ce452c>] ? update_curr+0x14c/0x1e0
[8085463.147924] [<ffffffff97cdfb58>] ? __enqueue_entity+0x78/0x80
[8085463.150662] [<ffffffff97ce670f>] ? enqueue_entity+0x2ef/0xbe0
[8085463.151504] [<ffffffffc0872036>] iptable_filter_hook+0x36/0x80 [iptable_filter]
[8085463.152277] [<ffffffff98296ab8>] nf_iterate+0x98/0xe0
[8085463.153021] [<ffffffff98296ba8>] nf_hook_slow+0xa8/0x110
[8085463.153698] [<ffffffff982a5c42>] __ip_local_out_sk+0x102/0x110
[8085463.154425] [<ffffffff982a5220>] ? ip_forward_options+0x1c0/0x1c0
[8085463.155095] [<ffffffff982a5c6b>] ip_local_out_sk+0x1b/0x40
[8085463.155722] [<ffffffff982a6024>] ip_queue_xmit+0x144/0x3c0
[8085463.156346] [<ffffffff982c0764>] tcp_transmit_skb+0x4e4/0x9e0
[8085463.156959] [<ffffffff982c297f>] tcp_send_ack+0x11f/0x170
[8085463.157570] [<ffffffff982b6fab>] __tcp_ack_snd_check+0x6b/0x90
[8085463.158195] [<ffffffff982bd1e5>] tcp_rcv_established+0x425/0x7a0
[8085463.158822] [<ffffffff982c807a>] tcp_v4_do_rcv+0x10a/0x350
[8085463.159435] [<ffffffff982c98cc>] tcp_v4_rcv+0x7dc/0x9e0
[8085463.160047] [<ffffffffc0872036>] ? iptable_filter_hook+0x36/0x80 [iptable_filter]
[8085463.160670] [<ffffffff982a1b0d>] ip_local_deliver_finish+0xbd/0x200
[8085463.161314] [<ffffffff982a1e00>] ip_local_deliver+0x60/0xe0
[8085463.161943] [<ffffffff982a1a50>] ? ip_rcv_finish+0x370/0x370
[8085463.162588] [<ffffffff982a1770>] ip_rcv_finish+0x90/0x370
[8085463.163225] [<ffffffff982a2140>] ip_rcv+0x2c0/0x420
[8085463.163930] [<ffffffff98256829>] __netif_receive_skb_core+0x729/0xa10
[8085463.164568] [<ffffffff97d07a0f>] ? __getnstimeofday64+0x3f/0xd0
[8085463.165206] [<ffffffff98256b28>] __netif_receive_skb+0x18/0x60
[8085463.165922] [<ffffffff98256bb0>] netif_receive_skb_internal+0x40/0xc0
[8085463.166681] [<ffffffff98256c4c>] netif_receive_skb+0x1c/0x70
[8085463.167368] [<ffffffffc0432639>] vmxnet3_rq_rx_complete+0x8a9/0xef0 [vmxnet3]
[8085463.168016] [<ffffffffc04330e6>] vmxnet3_poll_rx_only+0x36/0xa0 [vmxnet3]
[8085463.168604] [<ffffffff982571cf>] net_rx_action+0x26f/0x390
[8085463.169165] [<ffffffff97ca4bc5>] __do_softirq+0xf5/0x280
[8085463.169699] [<ffffffff983994ec>] call_softirq+0x1c/0x30
[8085463.170205] [<ffffffff97c2f715>] do_softirq+0x65/0xa0
[8085463.170698] [<ffffffff97ca4f45>] irq_exit+0x105/0x110
[8085463.171168] [<ffffffff9839a8d6>] do_IRQ+0x56/0xf0
[8085463.171624] [<ffffffff9838c36a>] common_interrupt+0x16a/0x16a
[8085463.172067] <EOI>
[8085463.172090] [<ffffffff9838b080>] ? __cpuidle_text_start+0x8/0x8
[8085463.172957] [<ffffffff9838b2cb>] ? native_safe_halt+0xb/0x20
[8085463.173392] [<ffffffff9838b09e>] default_idle+0x1e/0xc0
[8085463.173839] [<ffffffff97c37ca0>] arch_cpu_idle+0x20/0xc0
[8085463.174271] [<ffffffff97d0131a>] cpu_startup_entry+0x14a/0x1e0
[8085463.174706] [<ffffffff97c5a827>] start_secondary+0x1f7/0x270
[8085463.175136] [<ffffffff97c000d5>] start_cpu+0x5/0x14
[8085463.175554] Code: a0 49 8b 42 08 48 8b 40 30 e8 3d b3 a0 d7 45 0f b7 a7 c2 00 00 00 89 45 8c 4d 03 a7 e0 00 00 00 83 f8 ff 75 17 66 0f 1f 44 00 00 <0f> b7 43 5a 48 01 c3 80 7d c5 00 0f 84 37 fe ff ff f6 05 f2 49
[8085463.176527] RIP [<ffffffffc058c6e0>] ipt_do_table+0x320/0x740 [ip_tables]
[8085463.177008] RSP <ffff8e213fd03750>
[8085463.177469] CR2: 000000000000005a
Environment
- Red Hat Enterprise Linux 7
- iptables service
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