From: Stefan Metzmacher <metze@samba.org>
Date: Mon, 29 Jun 2020 08:12:07 +0000 (+0200)
Subject: swrap: add error checking/cleanup to swrap_sendmsg_filter_cmsghdr()
X-Git-Tag: socket_wrapper-1.3.0~11
X-Git-Url: http://git.samba.org/?p=socket_wrapper.git;a=commitdiff_plain;h=00f61edc7363cd17435b559beb04b567200fb38f

swrap: add error checking/cleanup to swrap_sendmsg_filter_cmsghdr()

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
---

diff --git a/src/socket_wrapper.c b/src/socket_wrapper.c
index 8a0e80d..98d9a99 100644
--- a/src/socket_wrapper.c
+++ b/src/socket_wrapper.c
@@ -5026,6 +5026,13 @@ static int swrap_sendmsg_filter_cmsghdr(const struct msghdr *_msg,
 						     cm_data_space);
 			break;
 		}
+		if (rc < 0) {
+			int saved_errno = errno;
+			SAFE_FREE(*cm_data);
+			*cm_data_space = 0;
+			errno = saved_errno;
+			return rc;
+		}
 	}
 
 	return rc;