From: Anastasia Belova <abelova@astralinux.ru>
Date: Tue, 15 Nov 2022 14:27:01 +0000 (+0300)
Subject: cifs: add check for returning value of SMB2_close_init
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d520de6cb42e88a1d008b54f935caf9fc05951da;p=linux.git

cifs: add check for returning value of SMB2_close_init

If the returning value of SMB2_close_init is an error-value,
exit the function.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 352d96f3acc6 ("cifs: multichannel: move channel selection above transport layer")

Signed-off-by: Anastasia Belova <abelova@astralinux.ru>
Signed-off-by: Steve French <stfrench@microsoft.com>
---

diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 880cd494afea4..9737296c0fbc6 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -1126,6 +1126,8 @@ smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon,
 	rqst[2].rq_nvec = 1;
 	rc = SMB2_close_init(tcon, server,
 			     &rqst[2], COMPOUND_FID, COMPOUND_FID, false);
+	if (rc)
+		goto sea_exit;
 	smb2_set_related(&rqst[2]);
 
 	rc = compound_send_recv(xid, ses, server,