Panic at sctp_auth_calculate_hmac

Issue

The following panic is seen when performing Codenomicon sctp compliance tests

BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
IP: [<ffffffffa01b1481>] sctp_auth_calculate_hmac+0xe1/0x150 [sctp]
PGD 102277d067 PUD 101aed3067 PMD 0 
Oops: 0000 [#1] SMP 
last sysfs file: /sys/devices/system/cpu/online
CPU 6 
Modules linked in: nfs lockd fscache auth_rpcgss nfs_acl sunrpc deflate zlib_deflate ctr camellia cast5 rmd160 crypto_null ccm serpent blowfish twofish_x86_64 twofish_common ecb xcbc cbc sha256_generic sha512_generic des_generic aesni_intel cryptd aes_x86_64 aes_generic ah6 ah4 esp6 esp4 xfrm4_mode_beet xfrm4_tunnel tunnel4 xfrm4_mode_tunnel xfrm4_mode_transport xfrm6_mode_transport xfrm6_mode_ro xfrm6_mode_beet xfrm6_mode_tunnel ipcomp ipcomp6 xfrm_ipcomp xfrm6_tunnel tunnel6 af_key autofs4 ipmi_devintf dummy bonding 8021q garp stp llc xt_sctp nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack xt_NFLOG nfnetlink_log nfnetlink xt_limit ip6t_frag xt_comment ip6table_filter ip6_tables sctp ipv6 libcrc32c power_meter hpilo hpwdt sg be2net(U) serio_raw iTCO_wdt iTCO_vendor_support ioatdma dca shpchp ext4 jbd2 mbcache sd_mod crc_t10dif hpsa video output dm_mirror dm_region_hash dm_log dm_mod [last unloaded: nf_defrag_ipv4]

Pid: 0, comm: swapper Not tainted 2.6.32-358.23.2.el6.x86_64 #1 HP ProLiant BL460c Gen8
RIP: 0010:[<ffffffffa01b1481>]  [<ffffffffa01b1481>] sctp_auth_calculate_hmac+0xe1/0x150 [sctp]
RSP: 0018:ffff8800614c36a0  EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff881023b3c800 RCX: ffffea0000000000
RDX: 0000000000000002 RSI: 0000000000000008 RDI: ffff880e0a0ca450
RBP: ffff8800614c3710 R08: 0000000000000000 R09: ffff8800614c36b0
R10: ffff881023b3c800 R11: 0000000000000000 R12: ffff880e0a0ca450
R13: 0000000000000000 R14: ffff8800614c36b0 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8800614c0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000000008 CR3: 000000101ca36000 CR4: 00000000000407e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process swapper (pid: 0, threadinfo ffff882029090000, task ffff8810291c1500)
Stack:
 0000000000000246 0000000000000020 ffffea0031232c32 0000012400000450
<d> 0000000000000000 0000000000000000 ffff8800614c3920 ffff880e0a0ca458
<d> ffff8800614c3710 ffff8800614c3790 ffff881023b3c800 0000000000000014
Call Trace:
 <IRQ> 
 [<ffffffffa0193442>] sctp_sf_authenticate+0x122/0x160 [sctp]
 [<ffffffffa0196583>] sctp_sf_do_5_1D_ce+0x2e3/0x560 [sctp]
 [<ffffffff81449428>] ? dev_hard_start_xmit+0x308/0x530
 [<ffffffff81065c75>] ? enqueue_entity+0x125/0x410
 [<ffffffff81065fc4>] ? enqueue_task_fair+0x64/0x100
 [<ffffffff81055f96>] ? enqueue_task+0x66/0x80
 [<ffffffffa0197651>] sctp_do_sm+0x71/0x11f0 [sctp]
 [<ffffffff8145bc44>] ? flow_cache_lookup+0x3b4/0x3c0
 [<ffffffffa0199ae9>] ? sctp_endpoint_lookup_assoc+0xc9/0xf0 [sctp]
 [<ffffffffa019a0d6>] sctp_endpoint_bh_rcv+0x116/0x220 [sctp]
 [<ffffffffa01a2704>] sctp_inq_push+0x34/0x50 [sctp]
 [<ffffffffa01b05d2>] sctp_rcv+0x972/0xa00 [sctp]
 [<ffffffff81063990>] ? default_wake_function+0x0/0x20
 [<ffffffff81055a3e>] ? __wake_up_sync_key+0x5e/0x80
 [<ffffffff81051439>] ? __wake_up_common+0x59/0x90
 [<ffffffff8147fa6d>] ip_local_deliver_finish+0xdd/0x2d0
 [<ffffffff8147fcf8>] ip_local_deliver+0x98/0xa0
 [<ffffffff8147f1bd>] ip_rcv_finish+0x12d/0x440
 [<ffffffff8147f745>] ip_rcv+0x275/0x350
 [<ffffffff8144891b>] __netif_receive_skb+0x4ab/0x750
 [<ffffffff8144acf8>] netif_receive_skb+0x58/0x60
 [<ffffffff8143de31>] ? __alloc_skb+0x81/0x190
 [<ffffffff814e75e0>] __vlan_hwaccel_rx+0x1d0/0x270
 [<ffffffffa011ac58>] be_poll_rx+0x6f8/0x7f0 [be2net]
 [<ffffffff8144d4c3>] net_rx_action+0x103/0x2f0
 [<ffffffff810770b1>] __do_softirq+0xc1/0x1e0
 [<ffffffff810e1760>] ? handle_IRQ_event+0x60/0x170
 [<ffffffff8100c1cc>] call_softirq+0x1c/0x30
 [<ffffffff8100de05>] do_softirq+0x65/0xa0
 [<ffffffff81076e95>] irq_exit+0x85/0x90
 [<ffffffff81517775>] do_IRQ+0x75/0xf0
 [<ffffffff8100b9d3>] ret_from_intr+0x0/0x11
 <EOI> 
 [<ffffffff812d3cfe>] ? intel_idle+0xde/0x170
 [<ffffffff812d3ce1>] ? intel_idle+0xc1/0x170
 [<ffffffff81415647>] cpuidle_idle_call+0xa7/0x140
 [<ffffffff81009fc6>] cpu_idle+0xb6/0x110
 [<ffffffff81507600>] start_secondary+0x2ac/0x2ef
Code: 00 4c 8d 75 a0 66 41 c1 c7 08 4c 89 f7 45 0f b7 ff 44 29 e2 e8 91 56 0d e1 48 8b 83 a0 00 00 00 49 8d 75 08 48 8b 80 f8 00 00 00 <4a> 8b 04 f8 c7 45 c8 00 00 00 00 48 89 45 c0 48 89 c7 41 8b 55 
RIP  [<ffffffffa01b1481>] sctp_auth_calculate_hmac+0xe1/0x150 [sctp]
 RSP <ffff8800614c36a0>
CR2: 0000000000000008