Commit f1e7a277 authored by Ruben Devos's avatar Ruben Devos Committed by Steve French
Browse files

smb: client: add NULL check in automount_fullpath 



page is checked for null in __build_path_from_dentry_optional_prefix
when tcon->origin_fullpath is not set. However, the check is missing when
it is set.
Add a check to prevent a potential NULL pointer dereference.

Signed-off-by: default avatarRuben Devos <devosruben6@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent 55423e9c

fs/smb/client/namespace.c

+3 −0
Original line number Diff line number Diff line
@@ -146,6 +146,9 @@ static char *automount_fullpath(struct dentry *dentry, void *page) 
	}

	spin_unlock(&tcon->tc_lock);



	if (unlikely(!page))

		return ERR_PTR(-ENOMEM);



	s = dentry_path_raw(dentry, page, PATH_MAX);

	if (IS_ERR(s))

		return s;