1. 08 11月, 2017 7 次提交
    • D
      tcmu: Fix some memory corruption · 16b93277
      Dan Carpenter 提交于
      "udev->nl_reply_supported" is an int but on 64 bit arches we are writing
      8 bytes of data to it so it corrupts four bytes beyond the end of the
      struct.
      
      Fixes: b849b456 ("target: Add netlink command reply supported option for each device")
      Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
      Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
      16b93277
    • N
      iscsi-target: Fix non-immediate TMR reference leak · 3fc9fb13
      Nicholas Bellinger 提交于
      This patch fixes a se_cmd->cmd_kref reference leak that can
      occur when a non immediate TMR is proceeded our of command
      sequence number order, and CMDSN_LOWER_THAN_EXP is returned
      by iscsit_sequence_cmd().
      
      To address this bug, call target_put_sess_cmd() during this
      special case following what iscsit_process_scsi_cmd() does
      upon CMDSN_LOWER_THAN_EXP.
      
      Cc: Mike Christie <mchristi@redhat.com>
      Cc: Hannes Reinecke <hare@suse.com>
      Cc: stable@vger.kernel.org # 3.10+
      Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
      3fc9fb13
    • N
      iscsi-target: Make TASK_REASSIGN use proper se_cmd->cmd_kref · ae072726
      Nicholas Bellinger 提交于
      Since commit 59b6986d fixed a potential NULL pointer dereference
      by allocating a se_tmr_req for ISCSI_TM_FUNC_TASK_REASSIGN, the
      se_tmr_req is currently leaked by iscsit_free_cmd() because no
      iscsi_cmd->se_cmd.se_tfo was associated.
      
      To address this, treat ISCSI_TM_FUNC_TASK_REASSIGN like any other
      TMR and call transport_init_se_cmd() + target_get_sess_cmd() to
      setup iscsi_cmd->se_cmd.se_tfo with se_cmd->cmd_kref of 2.
      
      This will ensure normal release operation once se_cmd->cmd_kref
      reaches zero and target_release_cmd_kref() is invoked, se_tmr_req
      will be released via existing target_free_cmd_mem() and
      core_tmr_release_req() code.
      Reported-by: NDonald White <dew@datera.io>
      Cc: Donald White <dew@datera.io>
      Cc: Mike Christie <mchristi@redhat.com>
      Cc: Hannes Reinecke <hare@suse.com>
      Cc: stable@vger.kernel.org # 3.10+
      Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
      ae072726
    • N
      target: Avoid early CMD_T_PRE_EXECUTE failures during ABORT_TASK · 1c21a480
      Nicholas Bellinger 提交于
      This patch fixes bug where early se_cmd exceptions that occur
      before backend execution can result in use-after-free if/when
      a subsequent ABORT_TASK occurs for the same tag.
      
      Since an early se_cmd exception will have had se_cmd added to
      se_session->sess_cmd_list via target_get_sess_cmd(), it will
      not have CMD_T_COMPLETE set by the usual target_complete_cmd()
      backend completion path.
      
      This causes a subsequent ABORT_TASK + __target_check_io_state()
      to signal ABORT_TASK should proceed.  As core_tmr_abort_task()
      executes, it will bring the outstanding se_cmd->cmd_kref count
      down to zero releasing se_cmd, after se_cmd has already been
      queued with error status into fabric driver response path code.
      
      To address this bug, introduce a CMD_T_PRE_EXECUTE bit that is
      set at target_get_sess_cmd() time, and cleared immediately before
      backend driver dispatch in target_execute_cmd() once CMD_T_ACTIVE
      is set.
      
      Then, check CMD_T_PRE_EXECUTE within __target_check_io_state() to
      determine when an early exception has occured, and avoid aborting
      this se_cmd since it will have already been queued into fabric
      driver response path code.
      Reported-by: NDonald White <dew@datera.io>
      Cc: Donald White <dew@datera.io>
      Cc: Mike Christie <mchristi@redhat.com>
      Cc: Hannes Reinecke <hare@suse.com>
      Cc: stable@vger.kernel.org # 3.14+
      Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
      1c21a480
    • N
      target: Fix quiese during transport_write_pending_qf endless loop · 9574a497
      Nicholas Bellinger 提交于
      This patch fixes a potential end-less loop during QUEUE_FULL,
      where cmd->se_tfo->write_pending() callback fails repeatedly
      but __transport_wait_for_tasks() has already been invoked to
      quiese the outstanding se_cmd descriptor.
      
      To address this bug, this patch adds a CMD_T_STOP|CMD_T_ABORTED
      check within transport_write_pending_qf() and invokes the
      existing se_cmd->t_transport_stop_comp to signal quiese
      completion back to __transport_wait_for_tasks().
      
      Cc: Mike Christie <mchristi@redhat.com>
      Cc: Hannes Reinecke <hare@suse.com>
      Cc: Bryant G. Ly <bryantly@linux.vnet.ibm.com>
      Cc: Michael Cyr <mikecyr@linux.vnet.ibm.com>
      Cc: Potnuri Bharat Teja <bharat@chelsio.com>
      Cc: Sagi Grimberg <sagi@grimberg.me>
      Cc: stable@vger.kernel.org # 4.11+
      Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
      9574a497
    • N
      target: Fix caw_sem leak in transport_generic_request_failure · fd2f928b
      Nicholas Bellinger 提交于
      With the recent addition of transport_check_aborted_status() within
      transport_generic_request_failure() to avoid sending a SCSI status
      exception after CMD_T_ABORTED w/ TAS=1 has occured, it introduced
      a COMPARE_AND_WRITE early failure regression.
      
      Namely when COMPARE_AND_WRITE fails and se_device->caw_sem has
      been taken by sbc_compare_and_write(), if the new check for
      transport_check_aborted_status() returns true and exits,
      cmd->transport_complete_callback() -> compare_and_write_post()
      is skipped never releasing se_device->caw_sem.
      
      This regression was originally introduced by:
      
        commit e3b88ee9
        Author: Bart Van Assche <bart.vanassche@sandisk.com>
        Date:   Tue Feb 14 16:25:45 2017 -0800
      
            target: Fix handling of aborted failed commands
      
      To address this bug, move the transport_check_aborted_status()
      call after transport_complete_task_attr() and
      cmd->transport_complete_callback().
      
      Cc: Mike Christie <mchristi@redhat.com>
      Cc: Hannes Reinecke <hare@suse.com>
      Cc: Bart Van Assche <bart.vanassche@sandisk.com>
      Cc: stable@vger.kernel.org # 4.11+
      Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
      fd2f928b
    • N
      target: Fix QUEUE_FULL + SCSI task attribute handling · 1c79df1f
      Nicholas Bellinger 提交于
      This patch fixes a bug during QUEUE_FULL where transport_complete_qf()
      calls transport_complete_task_attr() after it's already been invoked
      by target_complete_ok_work() or transport_generic_request_failure()
      during initial completion, preceeding QUEUE_FULL.
      
      This will result in se_device->simple_cmds, se_device->dev_cur_ordered_id
      and/or se_device->dev_ordered_sync being updated multiple times for
      a single se_cmd.
      
      To address this bug, clear SCF_TASK_ATTR_SET after the first call
      to transport_complete_task_attr(), and avoid updating SCSI task
      attribute related counters for any subsequent calls.
      
      Also, when a se_cmd is deferred due to ordered tags and executed
      via target_restart_delayed_cmds(), set CMD_T_SENT before execution
      matching what target_execute_cmd() does.
      
      Cc: Michael Cyr <mikecyr@linux.vnet.ibm.com>
      Cc: Bryant G. Ly <bryantly@linux.vnet.ibm.com>
      Cc: Mike Christie <mchristi@redhat.com>
      Cc: Hannes Reinecke <hare@suse.com>
      Cc: stable@vger.kernel.org # 4.1+
      Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
      1c79df1f
  2. 05 11月, 2017 27 次提交
  3. 23 10月, 2017 6 次提交
    • L
      Linux 4.14-rc6 · bb176f67
      Linus Torvalds 提交于
      bb176f67
    • L
      Merge tag 'staging-4.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · dd9d064e
      Linus Torvalds 提交于
      Pull staging and IIO fixes from Greg KH:
       "Here are a small number of patches to resolve some reported IIO and a
        staging driver problem. Nothing major here, full details are in the
        shortlog below.
      
        All have been in linux-next with no reported issues"
      
      * tag 'staging-4.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
        staging: bcm2835-audio: Fix memory corruption
        iio: adc: at91-sama5d2_adc: fix probe error on missing trigger property
        iio: adc: dln2-adc: fix build error
        iio: dummy: events: Add missing break
        staging: iio: ade7759: fix signed extension bug on shift of a u8
        iio: pressure: zpa2326: Remove always-true check which confuses gcc
        iio: proximity: as3935: noise detection + threshold changes
      dd9d064e
    • L
      Merge tag 'char-misc-4.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · 17e7637f
      Linus Torvalds 提交于
      Pull char/misc driver fixes from Greg KH:
       "Here are four small fixes for 4.14-rc6.
      
        Three of them are binder driver fixes for reported issues, and the
        last one is a hyperv driver bugfix. Nothing major, but good fixes to
        get into 4.14-final.
      
        All of these have been in linux-next with no reported issues"
      
      * tag 'char-misc-4.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
        android: binder: Fix null ptr dereference in debug msg
        android: binder: Don't get mm from task
        vmbus: hvsock: add proper sync for vmbus_hvsock_device_unregister()
        binder: call poll_wait() unconditionally.
      17e7637f
    • L
      Merge tag 'usb-4.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 58059921
      Linus Torvalds 提交于
      Pull USB/PHY fixes from Greg KH:
       "Here are a small number of USB and PHY driver fixes for 4.14-rc6
      
        There is the usual musb and xhci fixes in here, as well as some needed
        phy patches. Also is a nasty regression fix for usbfs that has started
        to hit a lot of people using virtual machines.
      
        All of these have been in linux-next with no reported problems"
      
      * tag 'usb-4.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (26 commits)
        usb: hub: Allow reset retry for USB2 devices on connect bounce
        USB: core: fix out-of-bounds access bug in usb_get_bos_descriptor()
        MAINTAINERS: fix git tree url for musb module
        usb: quirks: add quirk for WORLDE MINI MIDI keyboard
        usb: musb: sunxi: Explicitly release USB PHY on exit
        usb: musb: Check for host-mode using is_host_active() on reset interrupt
        usb: musb: musb_cppi41: Configure the number of channels for DA8xx
        usb: musb: musb_cppi41: Fix cppi41_set_dma_mode() for DA8xx
        usb: musb: musb_cppi41: Fix the address of teardown and autoreq registers
        USB: musb: fix late external abort on suspend
        USB: musb: fix session-bit runtime-PM quirk
        usb: cdc_acm: Add quirk for Elatec TWN3
        USB: devio: Revert "USB: devio: Don't corrupt user memory"
        usb: xhci: Handle error condition in xhci_stop_device()
        usb: xhci: Reset halted endpoint if trb is noop
        xhci: Cleanup current_cmd in xhci_cleanup_command_queue()
        xhci: Identify USB 3.1 capable hosts by their port protocol capability
        USB: serial: metro-usb: add MS7820 device id
        phy: rockchip-typec: Check for errors from tcphy_phy_init()
        phy: rockchip-typec: Don't set the aux voltage swing to 400 mV
        ...
      58059921
    • L
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · 02982f85
      Linus Torvalds 提交于
      Pull input fix from Dmitry Torokhov:
       "A fix for a broken commit in the previous pull breaking automatic
        module loading of input handlers, such ad evdev"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
        Input: do not use property bits when generating module alias
      02982f85
    • D
      Input: do not use property bits when generating module alias · 09c3e01b
      Dmitry Torokhov 提交于
      The commit 8724ecb0 ("Input: allow matching device IDs on property
      bits") started using property bits when generating module aliases for input
      handlers, but did not adjust the generation of MODALIAS attribute on input
      device uevents, breaking automatic module loading. Given that no handler
      currently uses property bits in their module tables, let's revert this part
      of the commit for now.
      Reported-by: NDamien Wyart <damien.wyart@gmail.com>
      Tested-by: NDamien Wyart <damien.wyart@gmail.com>
      Fixes: 8724ecb0 ("Input: allow matching device IDs on property bits")
      Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
      09c3e01b