From 7d088a3e4fab73d48c2a1315e54b25bc4a8f89b6 Mon Sep 17 00:00:00 2001
From: Quang Le <quanglex97@gmail.com>
Date: Fri, 29 Sep 2023 00:44:13 +0700
Subject: [PATCH] UPSTREAM: fs/smb/client: Reset password pointer to NULL

commit e6e43b8aa7cd3c3af686caf0c2e11819a886d705 upstream.

Forget to reset ctx->password to NULL will lead to bug like double free

Bug: 303146572
Cc: stable@vger.kernel.org
Cc: Willy Tarreau <w@1wt.eu>
Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Quang Le <quanglex97@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit f555a508087ab8210b4658120ac6413d6fe2b4c7)
Signed-off-by: Lee Jones <joneslee@google.com>
Change-Id: Iec1eb857124e3b6ffa6dbbeb5f796087a6194057
---
 fs/cifs/fs_context.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/cifs/fs_context.c b/fs/cifs/fs_context.c
index 89e810b27a4b..6bd713c6c869 100644
--- a/fs/cifs/fs_context.c
+++ b/fs/cifs/fs_context.c
@@ -1479,6 +1479,7 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
 
  cifs_parse_mount_err:
 	kfree_sensitive(ctx->password);
+	ctx->password = NULL;
 	return -EINVAL;
 }