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| author | Mike Marciniszyn <mike.marciniszyn@intel.com> | 2019-01-17 12:42:16 -0800 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-01-21 14:20:08 -0700 |
| commit | 09ce351dff8e7636af0beb72cd4a86c3904a0500 (patch) | |
| tree | 2d94b1e0d6fdccf24cbe3e78a50eed544ce215ec /drivers/infiniband/hw/mlx5/odp.c | |
| parent | 7709b0dc265f28695487712c45f02bbd1f98415d (diff) | |
| download | lwn-09ce351dff8e7636af0beb72cd4a86c3904a0500.tar.gz lwn-09ce351dff8e7636af0beb72cd4a86c3904a0500.zip | |
IB/hfi1: Add limit test for RC/UC send via loopback
Fix potential memory corruption and panic in loopback for IB_WR_SEND
variants.
The code blindly assumes the posted length will fit in the fetched rwqe,
which is not a valid assumption.
Fix by adding a limit test, and triggering the appropriate send completion
and putting the QP in an error state. This mimics the handling for
non-loopback QPs.
Fixes: 15703461533a ("IB/{hfi1, qib, rdmavt}: Move ruc_loopback to rdmavt")
Cc: <stable@vger.kernel.org> #v4.20+
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/odp.c')
0 files changed, 0 insertions, 0 deletions