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authorKarsten Blees <karsten.blees@gmail.com>2013-11-14 19:24:37 (GMT)
committerJunio C Hamano <gitster@pobox.com>2013-11-18 21:04:25 (GMT)
commit5699d17ee0949e6c01311a03dcfce485fcdd9b1a (patch)
treef12588558bd275204e058f2f5c7b88e003edea9e /builtin
parent6bb69077b74b792ddef66e372c86e66dea8e449b (diff)
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read-cache.c: fix memory leaks caused by removed cache entries
When cache_entry structs are removed from index_state.cache, they are not properly freed. Freeing those entries wasn't possible before because we couldn't remove them from index_state.name_hash. Now that we _do_ remove the entries from name_hash, we can also free them. Add 'free(cache_entry)' to all call sites of name-hash.c::remove_name_hash in read-cache.c (we could free() directly in remove_name_hash(), but name-hash.c isn't concerned with cache_entry allocation at all). Accessing a cache_entry after removing it from the index is now no longer allowed, as the memory has been freed. The following functions need minor fixes (typically by copying ce->name before use): - builtin/rm.c::cmd_rm - builtin/update-index.c::do_reupdate - read-cache.c::read_index_unmerged - resolve-undo.c::unmerge_index_entry_at Signed-off-by: Karsten Blees <blees@dcon.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin')
-rw-r--r--builtin/rm.c2
-rw-r--r--builtin/update-index.c5
2 files changed, 5 insertions, 2 deletions
diff --git a/builtin/rm.c b/builtin/rm.c
index 3a0e0ea..171f37c 100644
--- a/builtin/rm.c
+++ b/builtin/rm.c
@@ -311,7 +311,7 @@ int cmd_rm(int argc, const char **argv, const char *prefix)
if (!match_pathspec_depth(&pathspec, ce->name, ce_namelen(ce), 0, seen))
continue;
ALLOC_GROW(list.entry, list.nr + 1, list.alloc);
- list.entry[list.nr].name = ce->name;
+ list.entry[list.nr].name = xstrdup(ce->name);
list.entry[list.nr].is_submodule = S_ISGITLINK(ce->ce_mode);
if (list.entry[list.nr++].is_submodule &&
!is_staging_gitmodules_ok())
diff --git a/builtin/update-index.c b/builtin/update-index.c
index c8f0d5f..00313f3 100644
--- a/builtin/update-index.c
+++ b/builtin/update-index.c
@@ -559,6 +559,7 @@ static int do_reupdate(int ac, const char **av,
const struct cache_entry *ce = active_cache[pos];
struct cache_entry *old = NULL;
int save_nr;
+ char *path;
if (ce_stage(ce) || !ce_path_match(ce, &pathspec))
continue;
@@ -575,7 +576,9 @@ static int do_reupdate(int ac, const char **av,
* or worse yet 'allow_replace', active_nr may decrease.
*/
save_nr = active_nr;
- update_one(ce->name);
+ path = xstrdup(ce->name);
+ update_one(path);
+ free(path);
if (save_nr != active_nr)
goto redo;
}