Attachment "1599352cca83.diff" to
ticket [1599352cca]
added by
chrstphrchvz
2022-10-02 14:06:20.
diff --git generic/tclUtil.c generic/tclUtil.c
index 8e9b4c0e4..19ac44adc 100644
--- generic/tclUtil.c
+++ generic/tclUtil.c
@@ -1598,7 +1598,9 @@ Tcl_Merge(
Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
}
}
- if (bytesNeeded > INT_MAX - argc + 1) {
+ if (argc < 0) {
+ Tcl_Panic("Tcl_Merge called with negative argc (%d)", argc);
+ } else if (bytesNeeded > INT_MAX - argc + 1) {
Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
}
bytesNeeded += argc;