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-rw-r--r--elf/dl-load.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/elf/dl-load.c b/elf/dl-load.c
index c3337e4386..6433b32983 100644
--- a/elf/dl-load.c
+++ b/elf/dl-load.c
@@ -919,7 +919,8 @@ open_path (const char *name, size_t namelen, int preloaded,
 		   test whether there is any directory at all.  */
 		struct stat st;
 
-		buf[this_dir->dirnamelen + capstr[cnt].len] = '\0';
+		buf[this_dir->dirnamelen
+		    + MAX (capstr[cnt].len - 1, 0)] = '\0';
 
 		if (__xstat (_STAT_VER, buf, &st) != 0
 		    || ! S_ISDIR (st.st_mode))