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linux/drivers/infiniband/hw/hfi1
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Mike Marciniszyn 1feb40067c RDMA/qib,hfi1: Fix MR reference count leak on write with immediate 
The handling of IB_RDMA_WRITE_ONLY_WITH_IMMEDIATE will leak a memory
reference when a buffer cannot be allocated for returning the immediate
data.

The issue is that the rkey validation has already occurred and the RNR
nak fails to release the reference that was fruitlessly gotten.  The
the peer will send the identical single packet request when its RNR
timer pops.

The fix is to release the held reference prior to the rnr nak exit.
This is the only sequence the requires both rkey validation and the
buffer allocation on the same packet.

Cc: Stable <stable@vger.kernel.org> # 4.7+
Tested-by: Tadeusz Struk <tadeusz.struk@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-06-01 17:04:33 -04:00
..
affinity.c sched/core: Remove the tsk_cpus_allowed() wrapper 2017-03-02 08:42:24 +01:00
affinity.h Updates for 4.10 kernel merge window 2016-12-15 12:03:32 -08:00
aspm.h IB/hfi1: Virtual Network Interface Controller (VNIC) HW support 2017-04-20 15:19:35 -04:00
chip_registers.h RDMA/hfi1: Defer setting VL15 credits to link-up interrupt 2017-06-01 17:04:20 -04:00
chip.c RDMA/hfi1: Defer setting VL15 credits to link-up interrupt 2017-06-01 17:04:20 -04:00
chip.h IB/hfi1: Clean up context initialization 2017-05-04 19:31:46 -04:00
common.h IB/hfi1: Use defines from common headers 2017-04-28 13:48:01 -04:00
debugfs.c IB/hfi1: Virtual Network Interface Controller (VNIC) HW support 2017-04-20 15:19:35 -04:00
debugfs.h IB/hfi1: Add transmit fault injection feature 2017-04-05 14:45:09 -04:00
device.c infiniband: utilize the new cdev_set_parent function 2017-03-21 06:44:33 +01:00
device.h
driver.c IB/hfi1: Fix an assign/ordering issue with shared context IDs 2017-05-04 19:31:46 -04:00
efivar.c IB/hfi1: Check upper-case EFI variables 2017-02-19 09:18:37 -05:00
efivar.h
eprom.c IB/hfi1: Read new EPROM format 2016-12-11 15:25:13 -05:00
eprom.h IB/hfi1: Add ability to read platform config from the EPROM 2016-10-02 08:42:20 -04:00
file_ops.c IB/hfi1: Clean up on context initialization failure 2017-05-04 19:31:46 -04:00
firmware.c IB/hfi1: Add a patch value to the firmware version string 2017-04-05 14:45:09 -04:00
hfi.h RDMA/hfi1: Defer setting VL15 credits to link-up interrupt 2017-06-01 17:04:20 -04:00
init.c IB/hfi1: Clean up on context initialization failure 2017-05-04 19:31:46 -04:00
intr.c RDMA/hfi1: Defer setting VL15 credits to link-up interrupt 2017-06-01 17:04:20 -04:00
iowait.h IB/hfi1: Add unique txwait_lock for txreq events 2016-11-15 16:25:59 -05:00
Kconfig Second round of merge items for 4.8 2016-08-04 20:26:31 -04:00
mad.c IB/core: Use rdma_ah_attr accessor functions 2017-05-01 14:32:43 -04:00
mad.h IB/hfi1: Clean up port state structure definition 2016-08-02 12:00:54 -04:00
Makefile IB/hfi1: VNIC SDMA support 2017-04-20 15:19:41 -04:00
mmu_rb.c IB/hfi1: constify mmu_notifier_ops structure 2016-12-11 15:29:42 -05:00
mmu_rb.h IB/hfi1: Remove unneeded mm argument in remove function 2016-08-02 22:46:21 -04:00
opa_compat.h
pcie.c RDMA/hfi1: change PCI bar addr assignments to Linux API functions 2017-06-01 17:03:40 -04:00
pio_copy.c IB/hfi1: Optimize pio_buf and send_context structs 2016-11-15 16:37:27 -05:00
pio.c IB/hfi1: Virtual Network Interface Controller (VNIC) HW support 2017-04-20 15:19:35 -04:00
pio.h IB/hfi: Fix up comments in engine mapping 2017-04-25 15:24:51 -04:00
platform.c IB/hfi1: Add special setting for low power AOC 2016-12-11 15:29:42 -05:00
platform.h IB/hfi1: Define platform_config_table_limits once 2016-12-11 15:29:42 -05:00
qp.c IB/hfi1, IB/rdmavt: Move r_adefered to r_lock cache line 2017-05-04 19:31:46 -04:00
qp.h IB/hfi1, qib, rdmavt: Move AETH credit functions into rdmavt 2017-02-19 09:18:38 -05:00
qsfp.c IB/hfi1: Extend i2c timeout 2016-10-02 08:42:13 -04:00
qsfp.h IB/hfi1: Fetch monitor values on-demand for CableInfo query 2016-08-22 14:31:41 -04:00
rc.c RDMA/qib,hfi1: Fix MR reference count leak on write with immediate 2017-06-01 17:04:33 -04:00
ruc.c IB/hfi1: Fix yield logic in send engine 2017-05-04 19:31:46 -04:00
sdma_txreq.h
sdma.c IB/hfi1: Ensure VL index is within bounds 2017-04-05 14:45:09 -04:00
sdma.h IB/hfi: Fix up comments in engine mapping 2017-04-25 15:24:51 -04:00
sysfs.c RDMA/hfi1: fix array termination by appending NULL to attr array 2017-06-01 17:03:19 -04:00
trace_ctxts.h IB/hfi1: Clean up context initialization 2017-05-04 19:31:46 -04:00
trace_dbg.h IB/hfi1: Separate tracepoints into specific headers 2016-08-02 12:00:54 -04:00
trace_ibhdrs.h IB/hfi1: Use defines from common headers 2017-04-28 13:48:01 -04:00
trace_misc.h IB/hfi1: Add receive fault injection feature 2017-04-05 14:45:09 -04:00
trace_rc.h IB/rdmavt, IB/hfi1: Fix timer migration regressions 2017-04-05 14:45:09 -04:00
trace_rx.h IB/hfi1: Remove leftover snoop references 2016-11-15 16:16:43 -05:00
trace_tx.h IB/hfi1: Fix yield logic in send engine 2017-05-04 19:31:46 -04:00
trace.c IB/hfi1: Add functions to parse 9B headers 2017-04-28 13:48:01 -04:00
trace.h IB/hfi1: Separate tracepoints into specific headers 2016-08-02 12:00:54 -04:00
uc.c IB/core: Use rdma_ah_attr accessor functions 2017-05-01 14:32:43 -04:00
ud.c IB/core: Use rdma_ah_attr accessor functions 2017-05-01 14:32:43 -04:00
user_exp_rcv.c IB/hfi1: Clean up on context initialization failure 2017-05-04 19:31:46 -04:00
user_exp_rcv.h IB/hfi1: Clean up context initialization 2017-05-04 19:31:46 -04:00
user_pages.c IB/hfi1: Virtual Network Interface Controller (VNIC) HW support 2017-04-20 15:19:35 -04:00
user_sdma.c IB/hfi1: Clean up on context initialization failure 2017-05-04 19:31:46 -04:00
user_sdma.h IB/hfi1: Fix an assign/ordering issue with shared context IDs 2017-05-04 19:31:46 -04:00
verbs_txreq.c IB/hfi1: Add unique txwait_lock for txreq events 2016-11-15 16:25:59 -05:00
verbs_txreq.h IB/hfi1: Remove dependence on qp->s_cur_size 2016-12-11 15:25:13 -05:00
verbs.c IB/core: Define 'ib' and 'roce' rdma_ah_attr types 2017-05-01 14:32:43 -04:00
verbs.h IB/hfi1: Fix yield logic in send engine 2017-05-04 19:31:46 -04:00
vnic_main.c IB/hfi1: Clean up context initialization 2017-05-04 19:31:46 -04:00
vnic_sdma.c IB/hfi1: VNIC SDMA support 2017-04-20 15:19:41 -04:00
vnic.h IB/hfi1: VNIC SDMA support 2017-04-20 15:19:41 -04:00