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[Launchpad Bug Tracker <1283604@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux - 3.13.0-20.42

---------------
linux (3.13.0-20.42) trusty; urgency=low

  [ Adam Conrad ]

  * [Packaging] Set bootloader and loader on ppc64el to grub

  [ Andy Whitcroft ]

  * rebase to v3.13.7
  * [Config] updateconfigs following rebase to v3.13.7
  * cloud-tools -- pull in init scripts for Hyper-V daemons
  * cloud-tools -- detect Hyper-V VM to avoid starting
  * cloud-tools -- update IF_NAME to DEVICE in hv_* scripts
    - LP: #1295401
  * [Config] cloud-tools -- ensure we force older hv-kvp-daemon-init off
  * [Config] fix up Breaks/Replaces on linux-cloud-tools-common to fix upgrades

  [ Emmanuel Grumbach ]

  * SAUCE: (no-up) iwlwifi: mvm: disable uAPSD due to bugs in the
firmware

  [ James Bottomley ]

  * SAUCE: (no-up) fix our current target reap infrastructure
    - LP: #1283604
  * SAUCE: (no-up) dual scan thread bug fix
    - LP: #1283604

  [ K. Y. Srinivasan ]

  * SAUCE: (no-up) Tools: hv: vssdaemon: Ignore VFAT mounts during the
    Freeze operation
    - LP: #1298192

  [ Paolo Pisati ]

  * [Config] disable HW_RANDOM_EXYNOS, USB_DWC3_EXYNOS,
    PHY_EXYNOS_MIPI_VIDEO
    - LP: #1294353
  * [Config] armhf: generic: AHCI_IMX=y, SERIAL_FSL_LPUART=m
    - LP: #1294951
  * [Config] armhf: generic: MFD_TI_AM335X_TSCADC and USB_DWC3_OMAP = m
    - LP: #1294962

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1298585
  * [Config] ignore.modules
  * SAUCE: i2c-cpm: Add missing includes for powerpc
  * [Config] CONFIG_ABX500_CORE=y for ppc64el
  * [Config] CONFIG_ALX=m for powerpc
  * [Config] CONFIG_ACENIC_OMIT_TIGON_I=n for ppc64el
  * [Config] CONFIG_ACORN_PARTITION_*=n for ppc64el
  * [Config] CONFIG_ANDROID=n for powerpc
  * [Config] CONFIG_ASYNC_RAID6_TEST=m for ppc64el
  * [Config] CONFIG_BIG_KEYS=y for ppc64el
  * [Config] CONFIG_BLK_DEV_INTEGRITY=y for ppc64el
  * [Config] CONFIG_BSD_PROCESS_ACCT=y for ppc64el
  * [Config] CONFIG_BLK_DEV_SR_VENDOR=n for ppc64el
  * [Config] CONFIG_CFG80211=m for ppc64el
  * [Config] CONFIG_CHARGER_BQ24190=m for powerpc
  * [Config] CONFIG_CHARGER_BQ24735=m for powerpc
  * [Config] CONFIG_EXPERT=y for ppc64el
  * [Config] CONFIG_ATA_SFF=y on ppc64el
  * [Config] CONFIG_ATA_GENERIC=y for ppc64el, powerpc
  * [Config] CONFIG_CHR_DEV_ST=m for ppc64el
  * [Config] CONFIG_CHECKPOINT_RESTORE=y for ppc64el
  * [Config] CONFIG_CHELSIO_T1_1G=y for ppc64el
  * [Config] CONFIG_CHR_DEV_OSST=m for ppc64el
  * [Config] CONFIG_CHR_DEV_SCH=m for ppc64el
  * [Config] CONFIG_CPU_FREQ_STAT=y for powerpc
  * [Config] CONFIG_DDR=y for ppc64el
  * [Config] CONFIG_DEBUG_BUGVERBOSE=y for powerpc
  * [Config] CONFIG_EXT4_USE_FOR_EXT23=y for powerpc, ppc64el
  * [Config] CONFIG_E100=m, CONFIG_E1000=m, CONFIG_E1000E=m for ppc64el
  * [Config] CONFIG_EZX_PCAP=n for all arches
  * [Config] CONFIG_DYNAMIC_DEBUG=y for powerpc
  * [Config] CONFIG_ENABLE_MUST_CHECK=n for ppc64el
  * [Config] CONFIG_ENABLE_WARN_DEPRECATED=n for ppc64el
  * [Config] CONFIG_FB_3DFX=m for all arches
  * [Config] CONFIG_FB_MATROX=m for ppc64el
  * [Config] CONFIG_FB_RADEON=m for ppc64el
  * [Config] CONFIG_FB_SAVAGE_I2C=y for all arches
  * [Config] CONFIG_FIREWIRE=m for ppc64el
  * [Config] CONFIG_FTR_FIXUP_SELFTEST=n for ppc64el
  * [Config] CONFIG_HAMRADIO=y for ppc64el
  * [Config] CONFIG_I2C_CHARDEV=m for ppc64el
  * [Config] CONFIG_I2C_MUX=m for ppc64el
  * [Config] CONFIG_I2C_STUB=m for ppc64el
  * [Config] CONFIG_I2O=m for ppc64el
  * [Config] CONFIG_INET_XFRM_MODE_BEET=m, CONFIG_INET_XFRM_MODE_TRANSPORT=m, CONFIG_INET_XFRM_MODE_TUNNEL=m for ppc64el
  * [Config] CONFIG_INFINIBAND_IPOIB_DEBUG=n, CONFIG_INFINIBAND_MTHCA_DEBUG=n for ppc64el
  * [Config] CONFIG_INFINIBAND_NES=m, CONFIG_INFINIBAND_OCRDMA=m, CONFIG_INFINIBAND_QIB=m for ppc64el
  * [Config] CONFIG_INPUT_FF_MEMLESS=m for ppc64el
  * [Config] CONFIG_INTERVAL_TREE_TEST=m for ppc64el
  * [Config] CONFIG_IPACK_BUS=m for ppc64el
  * [Config] CONFIG_ISDN=y for ppc64el
  * [Config] CONFIG_ISO9660_FS=m for ppc64el
  * [Config] CONFIG_KGDB=y for ppc64el
  * [Config] CONFIG_KVM_GUEST=y for ppc64el
  * [Config] CONFIG_L2TP_V3=y for powerpc
  * [Config] CONFIG_MAILBOX=y for ppc64el
  * [Config] CONFIG_MD_LINEAR=m, CONFIG_MD_RAID0=m, CONFIG_MD_RAID1=m for ppc64el
  * [Config] CONFIG_MEDIA_SUPPORT=m for ppc64el
  * [Config] CONFIG_MEMORY=y for ppc64el
  * [Config] CONFIG_MEMSTICK=m for ppc64el
  * [Config] CONFIG_MFD_SM501_GPIO=n for ppc64el
  * [Config] CONFIG_MLX4_DEBUG=n for ppc64el
  * [Config] CONFIG_MMC_BLOCK=m for ppc64el
  * [Config] CONFIG_MOUSE_PS2=m for ppc64el
  * [Config] CONFIG_NET_9P=m for ppc64el
  * [Config] CONFIG_MSDOS_FS=m for ppc64el
  * [Config] CONFIG_MSI_BITMAP_SELFTEST=n for ppc64el
  * [Config] CONFIG_MTD=m for arm64
  * [Config] CONFIG_NETCONSOLE=m for ppc64el
  * [Config] CONFIG_NETFILTER_XT_TARGET_NOTRACK=m for ppc64el
  * [Config] CONFIG_NETPOLL_TRAP=n for ppc64el
  * [Config] CONFIG_NET_IPIP=m for ppc64el
  * [Config] CONFIG_NET_TEAM=m for all arches
  * [Config] CONFIG_NFC=m for ppc64el
  * [Config] CONFIG_NL80211_TESTMODE=n for all arches
  * [Config] CONFIG_NLS_CODEPAGE_437=y for powerpc
  * [Config] CONFIG_NLS_ASCII=m, CONFIG_NLS_ISO8859_1=m, CONFIG_NLS_UTF8=m for ppc64el
  * [Config] CONFIG_NOP_USB_XCEIV=m for ppc64el
  * [Config] CONFIG_NOTIFIER_ERROR_INJECTION=m for ppc64el
  * [Config] CONFIG_OPROFILE=m for ppc64el
  * [Config] CONFIG_PARPORT_1284=y for ppc64el
  * [Config] CONFIG_PARPORT_AX88796=m, CONFIG_PARPORT_PC_FIFO=y, CONFIG_PARPORT_SERIAL=m for ppc64el
  * [Config] CONFIG_PCI_IOV=y, CONFIG_PCI_PASID=y, CONFIG_PCI_PRI=y, CONFIG_PCI_REALLOC_ENABLE_AUTO=y, CONFIG_PCI_STUB=m for ppc64el
  * [Config] CONFIG_PCNET32=m for ppc64el
  * [Config] CONFIG_SCSI_DH_EMC=m for ppc64el
  * [Config] CONFIG_SCSI_DH_HP_SW=m for ppc64el
  * [Config] CONFIG_SCSI_FC_ATTRS=m for ppc64el
  * [Config] CONFIG_SCSI_IPR=m for ppc64el
  * [Config] CONFIG_SCSI_LOGGING=y for ppc64el
  * [Config] CONFIG_SCSI_OSD_INITIATOR=m for ppc64el
  * [Config] CONFIG_SCSI_SCAN_ASYNC=y for ppc64el
  * [Config] CONFIG_SCSI_SYM53C8XX_2=m for ppc64el

  [ Timo Aaltonen ]

  * SAUCE: i915_bdw: Provide an ubuntu/i915 driver for Broadwell graphics
    - LP: #1294144
  * SAUCE: i915_bdw: Add DP_AUX definitions
    - LP: #1294144
  * SAUCE: i915_bdw: Update intel_ips.h file location
    - LP: #1294144
  * SAUCE: i915_bdw: Revert "ACPI / i915: replace open-coded _DSM code with
    helper functions"
    - LP: #1294144
  * SAUCE: i915_bdw: Add an include back to intel_opregion.c
    - LP: #1294144
  * SAUCE: i915_bdw: Only support Broadwell with ubuntu/i915 driver
    - LP: #1294144
  * SAUCE: i915_bdw: Add i915_bdw_gpu_*() calls for ubuntu/i915
    - LP: #1294144
  * i915_bdw: [Config] Enable CONFIG_DRM_I915_BDW=m, and disable UMS
    - LP: #1294144
  * SAUCE: i915_bdw: Rename ubuntu/i915 driver to i915_bdw
    - LP: #1294144

  [ Upstream Kernel Changes ]

  * netfilter: nf_conntrack_dccp: fix skb_header_pointer API usages
    - CVE-2014-2523
  * Input: ALPS - add support for "Dolphin" devices
    - LP: #1190867
  * x86/mm/pageattr: Lookup address in an arbitrary PGD
    - LP: #1297658
  * x86/mm/pageattr: Add a PGD pagetable populating function
    - LP: #1297658
  * x86/mm/pageattr: Add a PUD pagetable populating function
    - LP: #1297658
  * x86/mm/pageattr: Add a PMD pagetable populating function
    - LP: #1297658
  * x86/mm/pageattr: Add a PTE pagetable populating function
    - LP: #1297658
  * x86/mm/pageattr: Add a PUD error unwinding path
    - LP: #1297658
  * x86/mm/pageattr: Add last levels of error path
    - LP: #1297658
  * x86/mm/cpa: Map in an arbitrary pgd
    - LP: #1297658
  * x86/efi: Runtime services virtual mapping
    - LP: #1297658
  * x86/efi: Check krealloc return value
    - LP: #1297658
  * Include apm-mustang.dtb in kernel-image udeb
  * drm/i915: add i915_reset_count
    - LP: #1294144
  * drm/i915: add i915_get_reset_stats_ioctl
    - LP: #1294144
  * drm: add DRM_INFO_ONCE() to print a one-time DRM_INFO() message
    - LP: #1294144
  * drm: provide a helper for the encoder possible_crtcs mask
    - LP: #1294144
  * drm: Move drm_encoder_crtc_ok() to core
    - LP: #1294144
  * drm: Pass the display mode to drm_calc_timestamping_constants()
    - LP: #1294144
  * drm: Pass the display mode to drm_calc_vbltimestamp_from_scanoutpos()
    - LP: #1294144
  * drm: Pass 'flags' from the caller to .get_scanout_position()
    - LP: #1294144

  [ Upstream Kernel Changes ]

  * rebase to v3.13.7
    - LP: #1268468
 -- Andy Whitcroft <apw@xxxxxxxxxxxxx>   Mon, 24 Mar 2014 10:41:31 +0000

** Changed in: linux (Ubuntu Trusty)
       Status: Fix Committed => Fix Released

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2014-2523

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https://bugs.launchpad.net/bugs/1283604

Title:
  WARNING: CPU: 0 PID: 5517 at
  /build/buildd/linux-3.13.0/fs/sysfs/group.c:214
  sysfs_remove_group+0xc6/0xd0()

Status in The Linux Kernel:
  Unknown
Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux” source package in Trusty:
  Fix Released

Bug description:
  [Test Case]
  Insert USB drive, check dmesg for warning.

  [Fix]
  https://git.kernel.org/cgit/linux/kernel/git/jejb/scsi.git/commit/?h=for-next&id=e63ed0d7a98014fdfc2cfeb3f6dada313dcabb59
  https://git.kernel.org/cgit/linux/kernel/git/jejb/scsi.git/commit/?h=for-next&id=f2495e228fce9f9cec84367547813cbb0d6db15a

  From upstream scsi git repo.

  --

  [ 5425.167885] usb 3-2: USB disconnect, device number 2
  [ 7292.553234] usb 3-1: USB disconnect, device number 10
  [ 7292.623563] FAT-fs (sdc1): unable to read boot sector to mark fs as dirty
  [ 7292.623613] ------------[ cut here ]------------
  [ 7292.623624] WARNING: CPU: 0 PID: 5517 at /build/buildd/linux-3.13.0/fs/sysfs/group.c:214 sysfs_remove_group+0xc6/0xd0()
  [ 7292.623626] sysfs group ffffffff81cabb00 not found for kobject 'target6:0:0'
  [ 7292.623628] Modules linked in: nls_iso8859_1 nls_utf8 isofs usb_storage ctr ccm pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) parport_pc ppdev rfcomm bnep joydev intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel cryptd snd_hda_codec_hdmi snd_hda_codec_realtek btusb bluetooth samsung_laptop snd_hda_intel snd_hda_codec snd_hwdep snd_pcm microcode snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi uvcvideo videobuf2_vmalloc snd_seq videobuf2_memops videobuf2_core arc4 snd_seq_device videodev snd_timer iwldvm snd psmouse mac80211 serio_raw iwlwifi cfg80211 lpc_ich soundcore mei_me mei i915 wmi video drm_kms_helper mac_hid drm i2c_algo_bit lp parport hid_generic usbhid hid btrfs xor raid6_pq libcrc32c ahci r8169 libahci mii
  [ 7292.623708] CPU: 0 PID: 5517 Comm: umount Tainted: GF          O 3.13.0-11-generic #31-Ubuntu
  [ 7292.623711] Hardware name: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C/SAMSUNG_NP1234567890, BIOS P14AAJ 04/15/2013
  [ 7292.623713]  0000000000000009 ffff880025bf1b70 ffffffff817163b5 ffff880025bf1bb8
  [ 7292.623718]  ffff880025bf1ba8 ffffffff8106450d 0000000000000000 ffffffff81cabb00
  [ 7292.623723]  ffff8800c0191438 ffff880053d83188 ffff8800ad531800 ffff880025bf1c08
  [ 7292.623727] Call Trace:
  [ 7292.623735]  [<ffffffff817163b5>] dump_stack+0x45/0x56
  [ 7292.623741]  [<ffffffff8106450d>] warn_slowpath_common+0x7d/0xa0
  [ 7292.623745]  [<ffffffff8106457c>] warn_slowpath_fmt+0x4c/0x50
  [ 7292.623751]  [<ffffffff8122edfe>] ? sysfs_get_dirent_ns+0x4e/0x70
  [ 7292.623756]  [<ffffffff812300d6>] sysfs_remove_group+0xc6/0xd0
  [ 7292.623761]  [<ffffffff81496543>] dpm_sysfs_remove+0x43/0x50
  [ 7292.623766]  [<ffffffff8148bf75>] device_del+0x45/0x1c0
  [ 7292.623772]  [<ffffffff814ddd17>] scsi_target_reap_usercontext+0x27/0x40
  [ 7292.623777]  [<ffffffff8107ed27>] execute_in_process_context+0x67/0x70
  [ 7292.623782]  [<ffffffff814df6e4>] scsi_target_reap+0xc4/0xf0
  [ 7292.623786]  [<ffffffff814e12d8>] scsi_device_dev_release_usercontext+0x188/0x1c0
  [ 7292.623790]  [<ffffffff8107ed27>] execute_in_process_context+0x67/0x70
  [ 7292.623794]  [<ffffffff814e114c>] scsi_device_dev_release+0x1c/0x20
  [ 7292.623798]  [<ffffffff8148b5c2>] device_release+0x32/0xa0
  [ 7292.623802]  [<ffffffff81359f57>] kobject_cleanup+0x77/0x1b0
  [ 7292.623805]  [<ffffffff81359df8>] kobject_put+0x28/0x60
  [ 7292.623809]  [<ffffffff8148b8b7>] put_device+0x17/0x20
  [ 7292.623813]  [<ffffffff814d36cb>] scsi_device_put+0x3b/0x50
  [ 7292.623819]  [<ffffffff814e8940>] scsi_disk_put+0x30/0x50
  [ 7292.623823]  [<ffffffff814e8c72>] sd_release+0x42/0xd0
  [ 7292.623827]  [<ffffffff811f15ac>] __blkdev_put+0x16c/0x1a0
  [ 7292.623831]  [<ffffffff811f154e>] __blkdev_put+0x10e/0x1a0
  [ 7292.623834]  [<ffffffff811f1efe>] blkdev_put+0x4e/0x140
  [ 7292.623839]  [<ffffffff811b9cb4>] kill_block_super+0x44/0x70
  [ 7292.623843]  [<ffffffff811b9f7d>] deactivate_locked_super+0x3d/0x60
  [ 7292.623847]  [<ffffffff811ba536>] deactivate_super+0x46/0x60
  [ 7292.623853]  [<ffffffff811d71e6>] mntput_no_expire+0xd6/0x170
  [ 7292.623856]  [<ffffffff811d86ce>] SyS_umount+0x8e/0x100
  [ 7292.623861]  [<ffffffff81726fbf>] tracesys+0xe1/0xe6
  [ 7292.623864] ---[ end trace e80cad625b577b20 ]---

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-11-generic 3.13.0-11.31
  ProcVersionSignature: Ubuntu 3.13.0-11.31-generic 3.13.3
  Uname: Linux 3.13.0-11-generic x86_64
  ApportVersion: 2.13.2-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  caravena   2174 F.... pulseaudio
  CRDA:
   country CL:
    (2402 - 2482 @ 40), (N/A, 20)
    (5170 - 5250 @ 40), (N/A, 20)
    (5250 - 5330 @ 40), (N/A, 20), DFS
    (5735 - 5835 @ 40), (N/A, 20)
  CurrentDesktop: GNOME
  Date: Sat Feb 22 21:46:15 2014
  HibernationDevice: RESUME=UUID=360bd2d2-4f44-4311-86d6-4781ac81ee87
  InstallationDate: Installed on 2014-01-23 (30 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140122)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.13.0-11-generic root=UUID=0c67119c-ddae-476a-b510-142ec598f691 ro rootflags=subvol=@ quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-11-generic N/A
   linux-backports-modules-3.13.0-11-generic  N/A
   linux-firmware                             1.125
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/15/2013
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: P14AAJ
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: SAMSUNG_NP1234567890
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP14AAJ:bd04/15/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn530U3C/530U4C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 530U3C/530U4C
  dmi.product.version: 0.1
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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