From: Arnaud Giersch <arnaud.giersch@univ-fcomte.fr>
Date: Sun, 22 Dec 2019 17:10:37 +0000 (+0100)
Subject: Ensure xbt_new0 is called with a size > 0.
X-Git-Tag: v3.25~241
X-Git-Url: http://bilbo.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/baae28171e3955a7fc4d7dc0caca1dbdd91029d0

Ensure xbt_new0 is called with a size > 0.
---

diff --git a/src/smpi/bindings/smpi_pmpi_request.cpp b/src/smpi/bindings/smpi_pmpi_request.cpp
index 71609468c0..88a4c98267 100644
--- a/src/smpi/bindings/smpi_pmpi_request.cpp
+++ b/src/smpi/bindings/smpi_pmpi_request.cpp
@@ -460,6 +460,7 @@ int PMPI_Sendrecv_replace(void* buf, int count, MPI_Datatype datatype, int dst,
   CHECK_TYPE(3, datatype)
 
   int size = datatype->get_extent() * count;
+  xbt_assert(size > 0);
   void* recvbuf = xbt_new0(char, size);
   retval = MPI_Sendrecv(buf, count, datatype, dst, sendtag, recvbuf, count, datatype, src, recvtag, comm, status);
   if(retval==MPI_SUCCESS){