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-rw-r--r--Python/traceback.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/Python/traceback.c b/Python/traceback.c
index ea8fa7d..1db9c94 100644
--- a/Python/traceback.c
+++ b/Python/traceback.c
@@ -178,13 +178,18 @@ tb_displayline(f, filename, lineno, name)
path = sysget("path");
if (path != NULL && is_listobject(path)) {
int npath = getlistsize(path);
+ int taillen = strlen(tail);
char namebuf[MAXPATHLEN+1];
for (i = 0; i < npath; i++) {
object *v = getlistitem(path, i);
if (is_stringobject(v)) {
int len;
- strcpy(namebuf, getstringvalue(v));
len = getstringsize(v);
+ if (len + 1 + taillen >= MAXPATHLEN)
+ continue; /* Too long */
+ strcpy(namebuf, getstringvalue(v));
+ if (strlen(namebuf) != len)
+ continue; /* v contains '\0' */
if (len > 0 && namebuf[len-1] != SEP)
namebuf[len++] = SEP;
strcpy(namebuf+len, tail);