Given the following example configuration:
resolvers test
nameserver test 127.0.0.1:53
listen foo
bind *:8080
server foo example.com resolvers test
Running a configuration check within valgrind reports:
==21995== 5 bytes in 1 blocks are definitely lost in loss record 1 of 30
==21995== at 0x4C2DB8F: malloc (in
/usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==21995== by 0x5726489: strdup (strdup.c:42)
==21995== by 0x4B2CFB: parse_server (server.c:2163)
==21995== by 0x4680C1: cfg_parse_listen (cfgparse-listen.c:534)
==21995== by 0x459E33: readcfgfile (cfgparse.c:2167)
==21995== by 0x50778D: init (haproxy.c:2021)
==21995== by 0x418262: main (haproxy.c:3133)
==21995==
==21995== 12 bytes in 1 blocks are definitely lost in loss record 3 of 30
==21995== at 0x4C2DB8F: malloc (in
/usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==21995== by 0x5726489: strdup (strdup.c:42)
==21995== by 0x4AC666: srv_prepare_for_resolution (server.c:1606)
==21995== by 0x4B2EBD: parse_server (server.c:2081)
==21995== by 0x4680C1: cfg_parse_listen (cfgparse-listen.c:534)
==21995== by 0x459E33: readcfgfile (cfgparse.c:2167)
==21995== by 0x50778D: init (haproxy.c:2021)
==21995== by 0x418262: main (haproxy.c:3133)
with one more leak unrelated to `struct server`. After applying this
patch the leak is gone as expected.
This is a very minor leak that can only be observed if deinit() is called,
shortly before the OS will free all memory of the process anyway. No
backport needed.
---
src/haproxy.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/src/haproxy.c b/src/haproxy.c
index b5b426086..cbd9d3e67 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -2756,12 +2756,14 @@ void deinit(void)
free(s->id);
free(s->cookie);
+ free(s->hostname);
free(s->hostname_dn);
free((char*)s->conf.file);
free(s->idle_conns);
free(s->safe_conns);
free(s->available_conns);
free(s->curr_idle_thr);
+ free(s->resolvers_id);
if (s->use_ssl == 1 || s->check.use_ssl == 1 ||
(s->proxy->options & PR_O_TCPCHK_SSL)) {
if (xprt_get(XPRT_SSL) &&
xprt_get(XPRT_SSL)->destroy_srv)
--
2.27.0
