From d203d159b9f52796cd28cad53f0c6d777caadf11 Mon Sep 17 00:00:00 2001 From: "jan.nijtmans" Date: Wed, 16 Feb 2022 15:24:35 +0000 Subject: Fix [c6fea6ba6]: possible signed integer overflow in Tcl_GetLongFromObj(), Tcl_GetWideIntFromObj() --- generic/tclObj.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/generic/tclObj.c b/generic/tclObj.c index 1fd674f..029d3c0 100644 --- a/generic/tclObj.c +++ b/generic/tclObj.c @@ -2816,7 +2816,7 @@ Tcl_GetLongFromObj( value = (value << CHAR_BIT) | *bytes++; } if (big.sign) { - *longPtr = - (long) value; + *longPtr = (long) (0-value); } else { *longPtr = (long) value; } @@ -3116,7 +3116,7 @@ Tcl_GetWideIntFromObj( value = (value << CHAR_BIT) | *bytes++; } if (big.sign) { - *wideIntPtr = - (Tcl_WideInt) value; + *wideIntPtr = (Tcl_WideInt) (0-value); } else { *wideIntPtr = (Tcl_WideInt) value; } -- cgit v0.12