#19659: unable to handle kernel NULL pointer dereference at 0000000000000400
-------------------------+----------------------------------
Reporter: anonymous | Owner: developers
Type: defect | Status: new
Priority: high | Milestone: Chaos Calmer (trunk)
Component: base system | Version: Trunk
Keywords: |
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[39827.624984] BUG: unable to handle kernel NULL pointer dereference at
0000000000000400
[39827.633142] IP: [<ffffffffa01af557>] 0xffffffffa01af557
[39827.638521] PGD 68e6a067 PUD 68fc3067 PMD 0
[39827.642993] Oops: 0000 [#1] SMP
[39827.646354] Modules linked in: pppoe ppp_async iptable_nat pppox
ppp_generic nf_nat_ipv4 nf_conntrack_ipv6 nf_conntrack_ipv4 ipt_REJECT
ipt_MASQUERADE xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark
xt_mac xt_limit xt_id xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG
xt_CT slhc r8169 nf_reject_ipv4 nf_nat_masquerade_ipv4 nf_nat_ftp nf_nat
nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache
nf_conntrack_ftp nf_conntrack iptable_raw iptable_mangle iptable_filter
ip_tables e1000e crc_ccitt ip6t_REJECT nf_reject_ipv6 nf_log_ipv6
nf_log_common ip6table_raw ip6table_mangle ip6table_filter ip6_tables
x_tables e1000 tun ipv6 ptp pps_core mii
[39827.707048] CPU: 1 PID: 13954 Comm: pppd Not tainted 3.18.11 #1
[39827.713126] Hardware name: To be filled by O.E.M. To be filled by
O.E.M./MAHOBAY, BIOS 4.6.5 06/12/2014
[39827.722771] task: ffff880072cade80 ti: ffff88005080c000 task.ti:
ffff88005080c000
[39827.730417] RIP: 0010:[<ffffffffa01af557>] [<ffffffffa01af557>]
0xffffffffa01af557
[39827.738280] RSP: 0018:ffff88005080fc38 EFLAGS: 00010202
[39827.743735] RAX: 0000000000000000 RBX: ffff8800634f6c00 RCX:
0000000000000008
[39827.751065] RDX: 0000000000000009 RSI: 00000000fffffe01 RDI:
ffffffff8131998c
[39827.758398] RBP: ffffffffa01afbc0 R08: 0000000000000000 R09:
0000000000000000
[39827.765666] R10: ffffffff810e37e1 R11: ffff880078a8c7c0 R12:
ffff88006113e000
[39827.772935] R13: ffff880100363520 R14: ffff8800611f5a80 R15:
ffff880067d64610
[39827.780239] FS: 00007f975b3be6a0(0000) GS:ffff880100300000(0000)
knlGS:0000000000000000
[39827.788466] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[39827.794348] CR2: 0000000000000400 CR3: 0000000068e6b000 CR4:
00000000001407e0
[39827.801579] Stack:
[39827.803648] 000000016115f7d8 ffff88006113e000 ffffffffa01afbc0
ffff88006113e030
[39827.811233] ffff880100363520 ffff8800611f5a80 ffff880067d64610
ffffffff81316a29
[39827.818895] 0000000000000008 ffff880067d64600 0000000000000008
ffffffff81316aad
[39827.826535] Call Trace:
[39827.829075] [<ffffffff81316a29>] ? sock_release+0x19/0x90
[39827.834672] [<ffffffff81316aad>] ? sock_close+0xd/0x20
[39827.840045] [<ffffffff810d1339>] ? __fput+0xd9/0x1b0
[39827.845243] [<ffffffff8104bcc6>] ? task_work_run+0x96/0xc0
[39827.850952] [<ffffffff8103861c>] ? do_exit+0x33c/0x8a0
[39827.856298] [<ffffffffa006063a>] ? tun_get_socket+0x141a/0x2de0 [tun]
[39827.863012] [<ffffffff81039855>] ? do_group_exit+0x75/0xb0
[39827.868716] [<ffffffff81041f91>] ? get_signal+0x471/0x4e0
[39827.874326] [<ffffffff8100208e>] ? do_signal+0x1e/0x5c0
[39827.879715] [<ffffffff8105e811>] ? remove_wait_queue+0x11/0x50
[39827.885825] [<ffffffffa0197bd3>] ?
ppp_unregister_compressor+0x763/0x1990 [ppp_generic]
[39827.894150] [<ffffffff81009355>] ? read_tsc+0x5/0x10
[39827.899320] [<ffffffff810737b7>] ? ktime_get_ts64+0x57/0xd0
[39827.905131] [<ffffffff810e0328>] ?
poll_select_copy_remaining+0xe8/0x130
[39827.912086] [<ffffffff81002652>] ? do_notify_resume+0x22/0x60
[39827.918055] [<ffffffff813d9080>] ? int_signal+0x12/0x17
[39827.923483] Code: 00 00 00 a8 01 74 15 48 89 df e8 75 a4 16 e1 b8 f7 ff
ff ff e9 05 01 00 00 0f 1f 00 0f b6 43 12 a8 0b 74 1c 48 8b 83 c0 02 00 00
<48> 8b 80 00 04 00 00 65 ff 08 48 c7 83 c0 02 00 00 00 00 00 00
[39827.944070] RIP [<ffffffffa01af557>] 0xffffffffa01af557
[39827.949560] RSP <ffff88005080fc38>
[39827.953136] CR2: 0000000000000400
[39827.956927] ---[ end trace c98218c7bc400e0d ]---
[39827.961678] Fixing recursive fault but reboot is needed!
--
Ticket URL: <https://dev.openwrt.org/ticket/19659>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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