From: Jeremy Allison <jra@samba.org>
Date: Tue, 15 Oct 2019 22:04:39 +0000 (-0700)
Subject: s3: smbd: SMB1 UNIX extensions - only allow size change on regular file.
X-Git-Tag: talloc-2.3.1~131
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d8567d46bd7e371de83e4d1ee1592639eb6f0c06;p=thirdparty%2Fsamba.git

s3: smbd: SMB1 UNIX extensions - only allow size change on regular file.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
---

diff --git a/source3/smbd/trans2.c b/source3/smbd/trans2.c
index bcff091f0ea..59821baeddf 100644
--- a/source3/smbd/trans2.c
+++ b/source3/smbd/trans2.c
@@ -8301,14 +8301,16 @@ static NTSTATUS smb_set_file_unix_basic(connection_struct *conn,
 
 	/* Deal with any size changes. */
 
-	status = smb_set_file_size(conn, req,
-				   fsp,
-				   smb_fname,
-				   &sbuf,
-				   size,
-				   false);
-	if (!NT_STATUS_IS_OK(status)) {
-		return status;
+	if (S_ISREG(sbuf.st_ex_mode)) {
+		status = smb_set_file_size(conn, req,
+					   fsp,
+					   smb_fname,
+					   &sbuf,
+					   size,
+					   false);
+		if (!NT_STATUS_IS_OK(status)) {
+			return status;
+		}
 	}
 
 	/* Deal with any time changes. */