#19748: unable to handle kernel NULL pointer dereference
-----------------------+----------------------------------
Reporter: anonymous | Owner: developers
Type: defect | Status: new
Priority: high | Milestone: Chaos Calmer (trunk)
Component: kernel | Version: Trunk
Keywords: |
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Chaos Calmer r45789:
[67197.516635] BUG: unable to handle kernel NULL pointer dereference at
0000000000000400
[67197.524695] IP: [<ffffffffa02c0557>] 0xffffffffa02c0557
[67197.530070] PGD 0
[67197.532162] Oops: 0000 [#1] SMP
[67197.535514] Modules linked in: pppoe ppp_async iptable_nat pptp pppox
ppp_mppe ppp_generic nf_nat_pptp nf_nat_ipv4 nf_nat_amanda
nf_conntrack_pptp nf_conntrack_ipv6 nf_conntrack_ipv4 nf_conntrack_amanda
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 ts_kmp ts_fsm ts_bm slhc r8169 nf_reject_ipv4
nf_nat_tftp nf_nat_snmp_basic nf_nat_sip nf_nat_proto_gre
nf_nat_masquerade_ipv4 nf_nat_irc nf_nat_h323 nf_nat_ftp nf_nat
nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_tftp
nf_conntrack_snmp nf_conntrack_sip nf_conntrack_rtcache
nf_conntrack_proto_gre nf_conntrack_irc nf_conntrack_h323 nf_conntrack_ftp
nf_conntrack_broadcast nf_conntrack iptable_raw iptable_mangle
iptable_filter ip_tables e1000e crc_ccitt xt_set ip_set_list_set
ip_set_hash_netiface ip_set_hash_netport ip_set_hash_netnet
ip_set_hash_net ip_set_hash_netportnet ip_set_hash_mac
ip_set_hash_ipportnet ip_set_hash_ipportip ip_set_hash_ipport
ip_set_hash_ipmark ip_set_hash_ip ip_set_bitmap_port ip_set_bitmap_ipmac
ip_set_bitmap_ip ip_set nfnetlink ip6t_REJECT nf_reject_ipv6 nf_log_ipv6
nf_log_common ip6table_raw ip6table_mangle ip6table_filter ip6_tables
x_tables ip_gre gre e1000 ip_tunnel tun ipv6 sha1_generic ecb arc4
crypto_blkcipher ptp pps_core mii
[67197.656950] CPU: 0 PID: 1291 Comm: pppd Not tainted 3.18.14 #3
[67197.662892] task: ffff88005b523cc0 ti: ffff88005d1b8000 task.ti:
ffff88005d1b8000
[67197.670591] RIP: 0010:[<ffffffffa02c0557>] [<ffffffffa02c0557>]
0xffffffffa02c0557
[67197.678472] RSP: 0018:ffff88005d1bbc38 EFLAGS: 00010202
[67197.683910] RAX: 0000000000000000 RBX: ffff880066107000 RCX:
0000000000000008
[67197.691146] RDX: 000000000000001b RSI: 00000000fffffe01 RDI:
ffffffff813160cc
[67197.698399] RBP: ffffffffa02c0bc0 R08: 0000000000000000 R09:
0000000000000000
[67197.705737] R10: ffffffff810e16c1 R11: ffff880078a5dc40 R12:
ffff880068af4f00
[67197.712970] R13: ffff880100363520 R14: ffff8800605b13c0 R15:
ffff880067d81a10
[67197.720266] FS: 0000000000000000(0000) GS:ffff880100200000(0000)
knlGS:0000000000000000
[67197.728494] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[67197.734361] CR2: 0000000000000400 CR3: 0000000001535000 CR4:
00000000001407f0
[67197.741629] Stack:
[67197.743694] 00000001605b1e98 ffff880068af4f00 ffffffffa02c0bc0
ffff880068af4f30
[67197.751340] ffff880100363520 ffff8800605b13c0 ffff880067d81a10
ffffffff81313169
[67197.758989] 0000000000000008 ffff880067d81a00 0000000000000008
ffffffff813131ed
[67197.766616] Call Trace:
[67197.769164] [<ffffffff81313169>] ? sock_release+0x19/0x90
[67197.774778] [<ffffffff813131ed>] ? sock_close+0xd/0x20
[67197.780098] [<ffffffff810cf1c9>] ? __fput+0xd9/0x1b0
[67197.785271] [<ffffffff8104bd66>] ? task_work_run+0x96/0xc0
[67197.790963] [<ffffffff8103865c>] ? do_exit+0x33c/0x8a0
[67197.796336] [<ffffffffa007263a>] ? tun_get_socket+0x141a/0x2de0 [tun]
[67197.802988] [<ffffffff81039895>] ? do_group_exit+0x75/0xb0
[67197.808681] [<ffffffff81042031>] ? get_signal+0x471/0x4e0
[67197.814294] [<ffffffff8100208e>] ? do_signal+0x1e/0x5c0
[67197.819699] [<ffffffff8105e8d1>] ? remove_wait_queue+0x11/0x50
[67197.825741] [<ffffffffa029cbd3>] ?
ppp_unregister_compressor+0x763/0x19b0 [ppp_generic]
[67197.834006] [<ffffffff81009355>] ? read_tsc+0x5/0x10
[67197.839142] [<ffffffff810738e7>] ? ktime_get_ts64+0x57/0xd0
[67197.844931] [<ffffffff810de208>] ?
poll_select_copy_remaining+0xe8/0x130
[67197.851862] [<ffffffff81002652>] ? do_notify_resume+0x22/0x60
[67197.857805] [<ffffffff813d5a40>] ? int_signal+0x12/0x17
[67197.863218] Code: 00 00 00 a8 01 74 15 48 89 df e8 b5 5b 05 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
[67197.883604] RIP [<ffffffffa02c0557>] 0xffffffffa02c0557
[67197.889048] RSP <ffff88005d1bbc38>
[67197.892627] CR2: 0000000000000400
[67197.896396] ---[ end trace 44a30bc34ec6534e ]---
[67197.901152] Fixing recursive fault but reboot is needed!
--
Ticket URL: <https://dev.openwrt.org/ticket/19748>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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