Backport candidate: remove dangerous free(0) on hashtable init

svn:r8499
2024-09-20 04:56:21 +02:00 · 2006-09-25 16:06:09 +00:00 · 2006-09-25 16:06:09 +00:00 · 0f8491a254
commit 0f8491a254
parent 78c068397a
2 changed files with 4 additions and 1 deletions
--- a/2
+++ b/2
@ -53,6 +53,8 @@ Changes in version 0.1.2.2-alpha - 2006-??-??
    - If we're a directory mirror and we ask for "all" network status
      documents, we would discard status documents from authorities
      we don't recognize.
+    - Avoid a memory corruption bug when creating a hash table for the first
+      time.

  o Documentation
    - Documented (and renamed) ServerDNSSearchDomains and
--- a/src/common/ht.h
+++ b/src/common/ht.h
@ -307,7 +307,8 @@ ht_string_hash(const char *s)
          elm = next;                                                   \
        }                                                               \
      }                                                                 \
-      freefn(head->hth_table);                                          \
+      if (head->hth_table)                                              \
+        freefn(head->hth_table);                                        \
      head->hth_table = new_table;                                      \
    } else {                                                            \
      unsigned b, b2;                                                   \