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| author | Mike Marciniszyn <mike.marciniszyn@intel.com> | 2019-01-17 23:42:16 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-12 21:46:14 +0300 |
| commit | e36c4e23b970ca4c53812b4e9bf733ca17280f65 (patch) | |
| tree | 8385fdf095b44ca32bc48c3b16e86abf9176741d /arch/x86/events/intel/core.c | |
| parent | ff371bc83b1cfa868bebdd7a4164a26d47e7c023 (diff) | |
| download | linux-e36c4e23b970ca4c53812b4e9bf733ca17280f65.tar.xz | |
IB/hfi1: Add limit test for RC/UC send via loopback
commit 09ce351dff8e7636af0beb72cd4a86c3904a0500 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Diffstat (limited to 'arch/x86/events/intel/core.c')
0 files changed, 0 insertions, 0 deletions