linux-kernel - [PATCH 6.0 114/862] ksmbd: fix endless loop when encryption for response fails

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 19 Oct 2022 10:23:21 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Namjae Jeon <linkinjeon@...nel.org>,
        Steve French <stfrench@...rosoft.com>
Subject: [PATCH 6.0 114/862] ksmbd: fix endless loop when encryption for response fails

From: Namjae Jeon <linkinjeon@...nel.org>

commit 360c8ee6fefdb496fffd2c18bb9a96a376a1a804 upstream.

If ->encrypt_resp return error, goto statement cause endless loop.
It send an error response immediately after removing it.

Fixes: 0626e6641f6b ("cifsd: add server handler for central processing and tranport layers")
Cc: stable@...r.kernel.org
Signed-off-by: Namjae Jeon <linkinjeon@...nel.org>
Signed-off-by: Steve French <stfrench@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 fs/ksmbd/server.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/fs/ksmbd/server.c
+++ b/fs/ksmbd/server.c
@@ -235,10 +235,8 @@ send:
 	if (work->sess && work->sess->enc && work->encrypted &&
 	    conn->ops->encrypt_resp) {
 		rc = conn->ops->encrypt_resp(work);
-		if (rc < 0) {
+		if (rc < 0)
 			conn->ops->set_rsp_status(work, STATUS_DATA_ERROR);
-			goto send;
-		}
 	}
 
 	ksmbd_conn_write(work);