sudo_rcstr_dup: Fix potential NULL pointer deref

2022-11-22 10:12:29 +08:00
parent 3396267291
commit dbfd84301a
1 changed files with 4 additions and 2 deletions
--- a/lib/util/rcstr.c
+++ b/lib/util/rcstr.c
@@ -49,8 +49,10 @@ sudo_rcstr_dup(const char *src)
    debug_decl(sudo_rcstr_dup, SUDO_DEBUG_UTIL);

    dst = sudo_rcstr_alloc(len);
-    memcpy(dst, src, len);
-    dst[len] = '\0';
+    if (dst != NULL) {
+        memcpy(dst, src, len);
+        dst[len] = '\0';
+    }
    debug_return_ptr(dst);
 }