[mpich-commits] [mpich] MPICH primary repository branch, master, updated. v3.1.3-195-g06a9f9e

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http://git.mpich.org/mpich.git/commitdiff/06a9f9e6ace98b3c7cd479a88c5bbb310090307e

commit 06a9f9e6ace98b3c7cd479a88c5bbb310090307e
Author: Wesley Bland <wbland at anl.gov>
Date:   Wed Nov 12 22:19:55 2014 -0600

    Fix null pointer deref in pending check
    
    Depending on how some uninitialized data was prepopulated, the ibsend
    check was periodically crashing out in the call to
    MPID_Request_is_pending_failure. Some simple sanity checking to make
    sure the input data wasn't NULL takes care of this.
    
    Signed-off-by: Huiwei Lu <huiweilu at mcs.anl.gov>

diff --git a/src/mpid/ch3/src/mpid_comm_failure_ack.c b/src/mpid/ch3/src/mpid_comm_failure_ack.c
index 700c57e..aa6b8ac 100644
--- a/src/mpid/ch3/src/mpid_comm_failure_ack.c
+++ b/src/mpid/ch3/src/mpid_comm_failure_ack.c
@@ -158,6 +158,10 @@ int MPID_Request_is_pending_failure(MPID_Request *request_ptr)
     MPIDI_STATE_DECL(MPID_STATE_REQUEST_IS_PENDING_FAILURE);
     MPIDI_FUNC_ENTER(MPID_STATE_REQUEST_IS_PENDING_FAILURE);
 
+    if (NULL == request_ptr || NULL == request_ptr->comm) {
+        goto fn_exit;
+    }
+
     if (request_ptr->dev.match.parts.rank != MPI_ANY_SOURCE) {
         goto fn_exit;
     }

-----------------------------------------------------------------------

Summary of changes:
 src/mpid/ch3/src/mpid_comm_failure_ack.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)


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