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-rw-r--r--ChangeLog3
-rw-r--r--nscd/nscd_helper.c6
2 files changed, 7 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog
index 2b5dfc68d5..4e3dd23084 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2004-09-12  Ulrich Drepper  <drepper@redhat.com>
 
+	* nscd/nscd_helper.c (get_mapping): Correctly check cmsg length.
+	Avoid file descriptor leak in case of size mismatch.
+
 	* nscd/nscd-client.h: Fix database structure layout for biarch.
 	* nscd/mem.c (gc): Add casts to avoid warnings.
 
diff --git a/nscd/nscd_helper.c b/nscd/nscd_helper.c
index 74983b9762..ff27b0797e 100644
--- a/nscd/nscd_helper.c
+++ b/nscd/nscd_helper.c
@@ -138,10 +138,12 @@ get_mapping (request_type type, const char *key,
     /* Failure or timeout.  */
     goto out_close2;
 
-  if (TEMP_FAILURE_RETRY (__recvmsg (sock, &msg, 0)) != keylen
-      || msg.msg_controllen != CMSG_LEN (sizeof (int)))
+  if (TEMP_FAILURE_RETRY (__recvmsg (sock, &msg, 0)) != keylen)
     goto out_close2;
 
+  if (CMSG_FIRSTHDR (&msg)->cmsg_len != CMSG_LEN (sizeof (int)))
+    goto out_close;
+
   mapfd = *(int *) CMSG_DATA (cmsg);
 
   struct stat64 st;