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-rw-r--r--generic/tclIO.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/generic/tclIO.c b/generic/tclIO.c
index 6831c47..0c9db67 100644
--- a/generic/tclIO.c
+++ b/generic/tclIO.c
@@ -4570,6 +4570,9 @@ FilterInputBytes(
}
bufPtr = statePtr->inQueueTail;
gsPtr->bufPtr = bufPtr;
+ if (bufPtr == NULL) {
+ Tcl_Panic("GetInput nuked buffers!");
+ }
}
/*