Commit 94f87e203a (fix create_client() RPC client handling) fixed
possible use of an invalid RPC client handle but the change neglected
to account for a check in rpc_do_create_client() that would open a new
file descriptor without checking if the passed in descriptor was
already opened.
Signed-off-by: Ian Kent <raven@xxxxxxxxxx>
---
CHANGELOG | 1 +
lib/rpc_subs.c | 4 ++--
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/CHANGELOG b/CHANGELOG
index dd48bf71..92e60df9 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -25,6 +25,7 @@ xx/xx/2018 autofs-5.1.5
- add units After line to include statd service.
- use systemd sd_notify() at startup.
- fix NFS version mask usage.
+- fix fd leak in rpc_do_create_client().
19/12/2017 autofs-5.1.4
- fix spec file url.
diff --git a/lib/rpc_subs.c b/lib/rpc_subs.c
index cc83e84d..9451c455 100644
--- a/lib/rpc_subs.c
+++ b/lib/rpc_subs.c
@@ -183,7 +183,7 @@ static int rpc_do_create_client(struct sockaddr *addr, struct conn_info *info, i
in4_laddr.sin_addr.s_addr = htonl(INADDR_ANY);
slen = sizeof(struct sockaddr_in);
- if (!info->client) {
+ if (!info->client && *fd == RPC_ANYSOCK) {
struct sockaddr *laddr;
*fd = open_sock(addr->sa_family, type, proto);
@@ -296,7 +296,7 @@ static int rpc_do_create_client(struct sockaddr *addr, struct conn_info *info, i
* it would bind to a reserved port, which has been shown to
* exhaust the reserved port range in some situations.
*/
- if (!info->client) {
+ if (!info->client && *fd == RPC_ANYSOCK) {
*fd = open_sock(addr->sa_family, type, proto);
if (*fd < 0) {
ret = -errno;
--
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