Dunno whether this is of any value to anyone, but I thought
I'd just post it here just in case someone is actually looking
for info on this bug.
Linux version 2.6.8-1.521smp (bhcompile@xxxxxxxxxxxxxxxxxxxxxxx) (gcc
version 3.3.3 20040412 (Red Hat Linux 3.3.3-7)) #1 SMP Mon Aug 16
09:25:06 EDT 2004
(These icmpv6 stuff are repeated hundreds of times)
icmpv6_send: addr_any/mcast source
icmpv6_send: addr_any/mcast source
icmpv6_send: addr_any/mcast source
------------[ cut here ]------------
kernel BUG at net/ipv6/exthdrs_core.c:79!
invalid operand: 0000 [#1]
SMP
Modules linked in: md5 ipv6 autofs4 sunrpc e1000 floppy sg microcode
dm_mod uhci_hcd ehci_hcd button battery asus_acpi ac ext3 jbd raid1
ata_piix libata sd_mod scsi_mod
CPU: 0
EIP: 0060:[<022d34e4>] Not tainted
EFLAGS: 00010282 (2.6.8-1.521smp)
EIP is at ipv6_skip_exthdr+0x42/0xce
eax: fffffff2 ebx: 00000000 ecx: 00000002 edx: 3ecda180
esi: 00000060 edi: 00000013 ebp: 3ecda180 esp: 412b6afc
ds: 007b es: 007b ss: 0068
Process named (pid: 2156, threadinfo=412b6000 task=3e47ecb0)
Stack: 412b6b2f 00000000 00000028 412b6b78 412b6c04 3ecda180 021b092c
0000004b
00000000 412b6bdc 00000000 412b6b78 002b6b7c 00000000 00000000
0000892f
412b6b70 412b6b74 021b15fd 00100000 00000000 00000060 40003300
00000000
Call Trace:
[<021b092c>] selinux_parse_skb_ipv6+0x7c/0xf3
[<021b15fd>] selinux_ip_postroute_last+0x20b/0x21d
[<021b09e8>] selinux_parse_skb+0x45/0x69
[<021b14ec>] selinux_ip_postroute_last+0xfa/0x21d
[<02158793>] rw_vm+0x2df/0x331
[<021b1631>] selinux_ipv6_postroute_last+0xf/0x13
[<42a84815>] ip6_output_finish+0x0/0xec [ipv6]
[<02289878>] nf_iterate+0x40/0x89
[<42a84815>] ip6_output_finish+0x0/0xec [ipv6]
[<02289c0a>] nf_hook_slow+0x47/0xb2
[<42a84815>] ip6_output_finish+0x0/0xec [ipv6]
[<42a8297a>] ip6_output2+0x239/0x241 [ipv6]
[<42a84815>] ip6_output_finish+0x0/0xec [ipv6]
[<42a84632>] ip6_push_pending_frames+0x295/0x372 [ipv6]
[<42a93bf1>] udp_v6_push_pending_frames+0x14e/0x16a [ipv6]
[<42a941c0>] udpv6_sendmsg+0x5b3/0x713 [ipv6]
[<022bc0e1>] inet_sendmsg+0x38/0x42
[<022796a0>] sock_sendmsg+0x9a/0xb6
[<02158793>] rw_vm+0x2df/0x331
[<02158b65>] get_user_size+0x30/0x57
[<0227e982>] verify_iovec+0x3e/0x71
[<0227ad97>] sys_sendmsg+0x143/0x191
[<02158793>] rw_vm+0x2df/0x331
[<02158793>] rw_vm+0x2df/0x331
[<0227b12b>] sys_socketcall+0x160/0x179
Code: 0f 0b 4f 00 a1 29 31 02 80 fb 2c 75 37 6a 02 8d 56 02 8d 4c
Server continues to run, but the icmpv6 stuff stops appearing
in the logs after this dump appears. Since I don't use IPv6 I havent
noticed any problems.
-HK
