From: Quang Le <quanglex97@gmail.com>
Date: Thu, 28 Sep 2023 17:44:13 +0000 (+0700)
Subject: fs/smb/client: Reset password pointer to NULL
X-Git-Tag: v6.1.63~1042
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f555a508087ab8210b4658120ac6413d6fe2b4c7;p=sdk%2Femulator%2Femulator-kernel.git

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

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>
---

diff --git a/fs/smb/client/fs_context.c b/fs/smb/client/fs_context.c
index e2e2ef0fa9a0..f4818599c00a 100644
--- a/fs/smb/client/fs_context.c
+++ b/fs/smb/client/fs_context.c
@@ -1487,6 +1487,7 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
 
  cifs_parse_mount_err:
 	kfree_sensitive(ctx->password);
+	ctx->password = NULL;
 	return -EINVAL;
 }