Author: Lukas Fleischer <cgit@cryptocrack.de>
find_default_branch(): Free refmatch after usage
Fixes following memory leak seen with "PATH_INFO=/cgit/refs/":
==13408== 7 bytes in 1 blocks are definitely lost in loss record 4 of 52
==13408== at 0x4C2C04B: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==13408== by 0x56F2DF1: strdup (in /usr/lib/libc-2.17.so)
==13408== by 0x46CA78: xstrdup (wrapper.c:35)
==13408== by 0x405840: find_current_ref (cgit.c:426)
==13408== by 0x44BE5A: do_one_ref (refs.c:527)
==13408== by 0x44D3E0: do_for_each_ref_in_dir (refs.c:553)
==13408== by 0x44D85A: do_for_each_ref (refs.c:1298)
==13408== by 0x405889: find_default_branch (cgit.c:438)
==13408== by 0x405AC4: prepare_repo_cmd (cgit.c:490)
==13408== by 0x405D97: process_request (cgit.c:557)
==13408== by 0x407490: cache_process (cache.c:322)
==13408== by 0x406C18: main (cgit.c:864)
Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
cgit.c | 8 ++++++++
diff --git a/cgit.c b/cgit.c index 5b20de3dd5d66fbc635edeb37bd1b589b21fc676..afafccee82f49639e191fd4c0c1a3d9b2aa027ee 100644 --- a/cgit.c +++ b/cgit.c @@ -427,6 +427,12 @@ info->first_ref = xstrdup(refname); return info->match; } +static void free_refmatch_inner(struct refmatch *info) +{ + if (info->first_ref) + free(info->first_ref); +} + static char *find_default_branch(struct cgit_repo *repo) { struct refmatch info; @@ -442,6 +448,8 @@ else ref = info.first_ref; if (ref) ref = xstrdup(ref); + free_refmatch_inner(&info); + return ref; }