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-rw-r--r--generic/tclCompExpr.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/generic/tclCompExpr.c b/generic/tclCompExpr.c
index 38c1ceb..50edbec 100644
--- a/generic/tclCompExpr.c
+++ b/generic/tclCompExpr.c
@@ -663,10 +663,12 @@ ParseExpr(
if (nodesUsed >= nodesAvailable) {
int size = nodesUsed * 2;
- OpNode *newPtr;
+ OpNode *newPtr = NULL;
do {
+ if (size <= UINT_MAX/sizeof(OpNode)) {
newPtr = attemptckrealloc(nodes, size * sizeof(OpNode));
+ }
} while ((newPtr == NULL)
&& ((size -= (size - nodesUsed) / 2) > nodesUsed));
if (newPtr == NULL) {