diff options
Diffstat (limited to 'generic/tclStringObj.c')
| -rw-r--r-- | generic/tclStringObj.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/generic/tclStringObj.c b/generic/tclStringObj.c index 996be77..462ef04 100644 --- a/generic/tclStringObj.c +++ b/generic/tclStringObj.c @@ -1938,6 +1938,10 @@ Tcl_AppendFormatToObj( width = 0; if (isdigit(UCHAR(ch))) { width = strtoul(format, &end, 10); + if (width < 0) { + msg = overflow; + goto errorMsg; + } format = end; step = Tcl_UtfToUniChar(format, &ch); } else if (ch == '*') { |