AuxXxilium/linux_dsm_epyc7002
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7709b0dc26
linux_dsm_epyc7002/drivers/infiniband/hw/hfi1
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Michael J. Ruhl 7709b0dc26 IB/hfi1: Remove overly conservative VM_EXEC flag check 
Applications that use the stack for execution purposes cause userspace PSM
jobs to fail during mmap().

Both Fortran (non-standard format parsing) and C (callback functions
located in the stack) applications can be written such that stack
execution is required. The linker notes this via the gnu_stack ELF flag.

This causes READ_IMPLIES_EXEC to be set which forces all PROT_READ mmaps
to have PROT_EXEC for the process.

Checking for VM_EXEC bit and failing the request with EPERM is overly
conservative and will break any PSM application using executable stacks.

Cc: <stable@vger.kernel.org> #v4.14+
Fixes: 1222026764 ("IB/hfi: Protect against writable mmap")
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-01-21 14:20:08 -07:00
..
affinity.c IB/hfi1: Make the MSIx resource allocation a bit more flexible 2018-09-01 08:13:38 -04:00
affinity.h IB/{hfi1, rdmavt, qib}: Implement CQ completion vector support 2018-05-09 15:53:30 -04:00
aspm.h IB/hfi1: Convert timers to use timer_setup() 2017-10-18 11:48:19 -04:00
chip_registers.h IB/hfi1: Dump pio info for non-user send contexts 2018-12-06 19:49:47 -07:00
chip.c 4.21 merge window pull request 2018-12-28 14:57:10 -08:00
chip.h IB/hfi1: Rework the IRQ API to be more flexible 2018-09-01 08:13:38 -04:00
common.h IB/hfi1: Add OPFN and TID RDMA capability bits 2018-12-06 19:59:46 -07:00
debugfs.c IB/hfi1: Dump pio info for non-user send contexts 2018-12-06 19:49:47 -07:00
debugfs.h RDMA/hfi1: Fix build error with debugfs disabled 2018-05-15 14:24:18 -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: Consider LMC in 16B/bypass ingress packet check 2018-12-06 19:50:09 -07:00
efivar.c IB/hfi1: Check upper-case EFI variables 2017-02-19 09:18:37 -05:00
efivar.h
eprom.c IB/hfi1: Check eeprom config partition validity 2017-09-27 11:10:36 -04:00
eprom.h IB/hfi1: Add ability to read platform config from the EPROM 2016-10-02 08:42:20 -04:00
exp_rcv.c IB/hfi1: Cleanup of exp_rcv 2018-05-24 09:39:25 -06:00
exp_rcv.h IB/hfi1: Cleanup of exp_rcv 2018-05-24 09:39:25 -06:00
fault.c IB/hfi1: Rework fault injection machinery 2018-05-09 15:53:30 -04:00
fault.h IB/hfi1: Rework fault injection machinery 2018-05-09 15:53:30 -04:00
file_ops.c IB/hfi1: Remove overly conservative VM_EXEC flag check 2019-01-21 14:20:08 -07:00
firmware.c IB/hfi1: Fix infinite loop in 8051 command error path 2018-01-05 13:34:55 -05:00
hfi.h 4.21 merge window pull request 2018-12-28 14:57:10 -08:00
init.c cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
intr.c IB/hfi1: Allow MgmtAllowed on B2B setups 2017-11-13 15:53:56 -05:00
iowait.c IB/hfi1: Add static trace for iowait 2018-09-30 19:21:12 -06:00
iowait.h IB/hfi1: Prepare resource waits for dual leg 2018-09-30 19:21:12 -06:00
Kconfig IB/hfi1: Remove HFI1_VERBS_31BIT_PSN option 2017-08-22 14:22:38 -04:00
mad.c RDMA: Mark if create address handle is in a sleepable context 2018-12-19 16:17:19 -07:00
mad.h IB/hfi1: Convert PortXmitWait/PortVLXmitWait counters to flit times 2018-02-01 15:43:30 -07:00
Makefile IB/hfi1: Allow the driver to initialize QP priv struct 2018-12-06 19:59:47 -07:00
mmu_rb.c mm/mmu_notifier: use structure for invalidate_range_start/end callback 2018-12-28 12:11:50 -08:00
mmu_rb.h IB/hfi1: Don't remove RB entry when not needed. 2017-06-27 16:56:33 -04:00
msix.c IB/hfi1: Rework the IRQ API to be more flexible 2018-09-01 08:13:38 -04:00
msix.h IB/hfi1: Make the MSIx resource allocation a bit more flexible 2018-09-01 08:13:38 -04:00
opa_compat.h IB/hfi1: Document phys port state bits not used in IB 2017-08-22 14:22:37 -04:00
pcie.c First merge window pull request 2018-10-26 07:38:19 -07:00
pio_copy.c IB/hfi1: Optimize pio_buf and send_context structs 2016-11-15 16:37:27 -05:00
pio.c cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
pio.h IB/hfi1: Reduce lock contention on iowait_lock for sdma and pio 2018-12-06 20:15:36 -07:00
platform.c IB/{hfi1, rdmavt}: Fix memory leak in hfi1_alloc_devdata() upon failure 2018-05-03 15:24:48 -04:00
platform.h IB/hfi1: Define platform_config_table_limits once 2016-12-11 15:29:42 -05:00
qp.c 4.21 merge window pull request 2018-12-28 14:57:10 -08:00
qp.h IB/hfi1: Prepare resource waits for dual leg 2018-09-30 19:21:12 -06:00
qsfp.c IB/{hfi1, rdmavt}: Fix memory leak in hfi1_alloc_devdata() upon failure 2018-05-03 15:24:48 -04:00
qsfp.h IB/hfi1: Fetch monitor values on-demand for CableInfo query 2016-08-22 14:31:41 -04:00
rc.c IB/hfi1: Unreserve a reserved request when it is completed 2018-12-06 19:59:46 -07:00
ruc.c IB/{hfi1, qib, rdmavt}: Move ruc_loopback to rdmavt 2018-10-03 16:38:28 -06:00
sdma_txreq.h
sdma.c cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
sdma.h IB/hfi1: Reduce lock contention on iowait_lock for sdma and pio 2018-12-06 20:15:36 -07:00
sysfs.c RDMA/drivers: Use core provided API for registering device attributes 2018-10-17 03:45:01 -06:00
tid_rdma.c IB/hfi1: Allow the driver to initialize QP priv struct 2018-12-06 19:59:47 -07:00
tid_rdma.h IB/hfi1: Allow the driver to initialize QP priv struct 2018-12-06 19:59:47 -07:00
trace_ctxts.h treewide: remove large struct-pass-by-value from tracepoint arguments 2018-03-28 22:55:18 +02:00
trace_dbg.h IB/{hfi1, rdmavt, qib}: Implement CQ completion vector support 2018-05-09 15:53:30 -04:00
trace_ibhdrs.h IB/hfi1: Add 16B Management Packet trace support 2018-05-24 09:39:25 -06:00
trace_iowait.h IB/hfi1: Add static trace for iowait 2018-09-30 19:21:12 -06:00
trace_misc.h IB/hfi1: Add traces for TID operations 2017-06-27 16:58:13 -04:00
trace_mmu.h IB/hif1: Remove static tracing from SDMA hot path 2017-08-28 19:12:27 -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: Add 16B rcvhdr trace support 2018-02-01 15:43:32 -07:00
trace_tx.h IB/hif1: Remove static tracing from SDMA hot path 2017-08-28 19:12:27 -04:00
trace.c IB/hfi1: Add 16B Management Packet trace support 2018-05-24 09:39:25 -06:00
trace.h IB/hfi1: Add static trace for iowait 2018-09-30 19:21:12 -06:00
uc.c IB/hfi1: Correctly process FECN and BECN in packets 2018-12-06 19:50:08 -07:00
ud.c IB/{hfi1, qib}: Fix WC.byte_len calculation for UD_SEND_WITH_IMM 2019-01-21 14:20:08 -07:00
user_exp_rcv.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
user_exp_rcv.h IB/hfi1: Move structure definitions from user_exp_rcv.c to user_exp_rcv.h 2017-08-28 19:12:22 -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: Reduce lock contention on iowait_lock for sdma and pio 2018-12-06 20:15:36 -07:00
user_sdma.h IB/hfi1: Right size user_sdma sequence numbers and related variables 2018-09-11 10:05:17 -06:00
verbs_txreq.c IB/hfi1: Fix incorrect mixing of ERR_PTR and NULL return values 2018-06-26 14:35:55 -06:00
verbs_txreq.h IB/hfi1: Prepare resource waits for dual leg 2018-09-30 19:21:12 -06:00
verbs.c 4.21 merge window pull request 2018-12-28 14:57:10 -08:00
verbs.h IB/hfi1: Allow the driver to initialize QP priv struct 2018-12-06 19:59:47 -07:00
vnic_main.c IB/hfi1: Limit VNIC use of SDMA engines to the available count 2018-12-06 19:50:08 -07:00
vnic_sdma.c IB/hfi1: Reduce lock contention on iowait_lock for sdma and pio 2018-12-06 20:15:36 -07:00
vnic.h IB/hfi1: Add support to receive 16B bypass packets 2017-08-22 14:22:37 -04:00