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
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core	RDMA/uverbs: Mark ioctl responses with UVERBS_ATTR_F_VALID_OUTPUT	2019-01-14 14:02:22 -07:00
hw	IB/hfi1: Remove overly conservative VM_EXEC flag check	2019-01-21 14:20:08 -07:00
sw	IB/rxe: Reuse code which sets port state	2018-12-20 14:20:58 -07:00
ulp	IB/ipoib: drop useless LIST_HEAD	2019-01-02 15:42:43 -07:00
Kconfig	RDMA: Fix building with CONFIG_MMU=n	2018-10-03 16:01:03 -06:00
Makefile	IB/rdmavt: Create module framework and handle driver registration	2016-03-10 20:37:04 -05:00