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Description: Fix stack smashing crash in *gemmBatch
Calling ARRAY_INIT more than 3 times without resetting num_ev
runs off the end of evl.
Author: Rebecca N. Palmer <rebecca_palmer@zoho.com>
Forwarded: https://github.com/Theano/libgpuarray/pull/584
--- libgpuarray-0.7.6.orig/src/gpuarray_blas_opencl_clblas.c
+++ libgpuarray-0.7.6/src/gpuarray_blas_opencl_clblas.c
@@ -132,6 +132,7 @@ static int sgemmBatch(cb_order order, cb
cl_uint num_ev = 0;
for (i = 0; i < batchCount; i++) {
+ num_ev = 0;
ARRAY_INIT(A[i]);
ARRAY_INIT(B[i]);
ARRAY_INIT(C[i]);
@@ -163,6 +164,7 @@ static int dgemmBatch(cb_order order, cb
cl_uint num_ev = 0;
for (i = 0; i < batchCount; i++) {
+ num_ev = 0;
ARRAY_INIT(A[i]);
ARRAY_INIT(B[i]);
ARRAY_INIT(C[i]);
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