Additional info:
reporter:       libreport-2.2.3
kernel BUG at drivers/misc/mei/hbm.c:787!
invalid opcode: 0000 [#1] SMP 
Modules linked in: vfat fat usb_storage usblp tcp_lp fuse ccm bnep bluetooth 6lowpan_iphc ip6t_rpfilter ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw x86_pkg_temp_thermal uvcvideo coretemp kvm_intel videobuf2_vmalloc videobuf2_memops kvm videobuf2_core snd_hda_codec_hdmi snd_hda_codec_idt crc32_pclmul snd_hda_codec_generic videodev arc4 rt2800pci rt2800mmio media rt2800lib mei_me hp_wmi crc32c_intel snd_hda_intel rt2x00pci rt2x00mmio rt2x00lib eeprom_93cx6 sparse_keymap mac80211 cfg80211 crc_ccitt snd_hda_codec mei atl1c microcode rfkill snd_hwdep iTCO_wdt hp_accel iTCO_vendor_support rtsx_pci_ms memstick snd_seq lis3lv02d rtsx_pci_sdmmc snd_seq_device mmc_core joydev input_polldev lpc_ich rtsx_pci wmi serio_raw snd_pcm i2c_i801 mfd_core snd_timer snd soundcore nfsd auth_rpcgss nfs_acl lockd sunrpc radeon i915 i2c_algo_bit ttm drm_kms_helper drm i2c_core video
CPU: 1 PID: 22233 Comm: irq/47-mei_me Not tainted 3.14.5-200.fc20.i686+PAE #1
Hardware name: Hewlett-Packard HP Pavilion dm4 Notebook PC/1651, BIOS F.03 04/08/2011
task: ee87d830 ti: ecb5e000 task.ti: ecb5e000
EIP: 0060:[<f81ea438>] EFLAGS: 00010293 CPU: 1
EIP is at mei_hbm_dispatch+0x628/0xdf0 [mei]
EAX: 00000003 EBX: f28fc000 ECX: 00000000 EDX: 00000000
ESI: f28fc19a EDI: f80a8560 EBP: ecb5fe74 ESP: ecb5fe40
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
CR0: 80050033 CR2: 00000000 CR3: 2bf38000 CR4: 000407f0
Stack:
 ee879dde ee8799f0 f28fc600 f758ff40 ecb5fe5c c048a3df f7591300 ecb5fe64
 c047187e ecb5fe7c f28fc000 eb42d3c0 80040000 ecb5fec4 f81eaf40 ecb5feb0
 c0472327 00000005 ecb500d8 c04100e0 ffffff02 c04846a1 00000001 00000020
Call Trace:
 [<c048a3df>] ? wake_up_process+0x1f/0x40
 [<c047187e>] ? wake_up_worker+0x1e/0x30
 [<f81eaf40>] mei_irq_read_handler+0x290/0x6d0 [mei]
 [<c0472327>] ? __queue_work+0xf7/0x2a0
 [<c04100e0>] ? lguest_leave_lazy_mmu_mode+0x10/0x20
 [<c04846a1>] ? finish_task_switch+0x41/0xd0
 [<f80a6830>] ? mei_me_count_full_read_slots+0x20/0x80 [mei_me]
 [<f80a6e95>] mei_me_irq_thread_handler+0x115/0x2b0 [mei_me]
 [<c04aeb58>] irq_thread_fn+0x18/0x30
 [<c04aef0e>] irq_thread+0xfe/0x130
 [<c04aeb40>] ? irq_finalize_oneshot.part.30+0xb0/0xb0
 [<c04aebc0>] ? irq_forced_thread_fn+0x50/0x50
 [<c04aee10>] ? irq_thread_check_affinity+0xb0/0xb0
 [<c047a45c>] kthread+0xac/0xc0
 [<c0a17cb7>] ret_from_kernel_thread+0x1b/0x28
 [<c047a3b0>] ? insert_kthread_work+0x30/0x30
Code: f5 ff ff 84 c0 0f 84 ab 01 00 00 f6 05 da 62 1f f8 04 0f 85 77 06 00 00 89 d8 e8 04 63 00 00 e9 17 fc ff ff 8d b4 26 00 00 00 00 <0f> 0b 8d b6 00 00 00 00 f6 05 82 63 1f f8 04 0f 85 b4 06 00 00
EIP: [<f81ea438>] mei_hbm_dispatch+0x628/0xdf0 [mei] SS:ESP 0068:ecb5fe40