From 03eb999d42a582bece2063fc06f34fad72e05be5 Mon Sep 17 00:00:00 2001 From: Nick Mathewson Date: Wed, 21 Oct 2015 10:27:19 -0400 Subject: [PATCH] Fix an (unreachable) memory leak in rendcache.c The 0.2.8 unit tests provoke this leak, though I don't think it can happen IRL. --- src/or/rendcache.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/src/or/rendcache.c b/src/or/rendcache.c index df4f517807..4a12b08c1c 100644 --- a/src/or/rendcache.c +++ b/src/or/rendcache.c @@ -353,7 +353,7 @@ cache_failure_intro_add(const uint8_t *identity, const char *service_id, rend_intro_point_failure_t failure) { rend_cache_failure_t *fail_entry; - rend_cache_failure_intro_t *entry; + rend_cache_failure_intro_t *entry, *old_entry; /* Make sure we have a failure object for this service ID and if not, * create it with this new intro failure entry. */ @@ -364,7 +364,10 @@ cache_failure_intro_add(const uint8_t *identity, const char *service_id, strmap_set_lc(rend_cache_failure, service_id, fail_entry); } entry = rend_cache_failure_intro_entry_new(failure); - digestmap_set(fail_entry->intro_failures, (char *) identity, entry); + old_entry = digestmap_set(fail_entry->intro_failures, + (char *) identity, entry); + /* This _should_ be NULL, but in case it isn't, free it. */ + rend_cache_failure_intro_entry_free(old_entry); } /** Using a parsed descriptor desc, check if the introduction points