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-rw-r--r--source3/nsswitch/wb_common.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/source3/nsswitch/wb_common.c b/source3/nsswitch/wb_common.c
index 0e20927941..dfefeb9f75 100644
--- a/source3/nsswitch/wb_common.c
+++ b/source3/nsswitch/wb_common.c
@@ -411,6 +411,10 @@ static int read_sock(void *buffer, int count)
int result = 0, nread = 0;
int total_time = 0, selret;
+ if (winbindd_fd == -1) {
+ return -1;
+ }
+
/* Read data from socket */
while(nread < count) {
struct timeval tv;