Date: Wed, 14 Sep 2011 16:09:27 +0200 From: Petr Matousek <pmatouse@...hat.com> To: oss-security@...ts.openwall.com Cc: coley@...us.mitre.org Subject: CVE request -- kernel: cifs: always do is_path_accessible check in cifs_mount "Currently, we skip doing the is_path_accessible check in cifs_mount if there is no prefixpath. There is a report of at least one server however that allows a TREE_CONNECT to a share that has a DFS referral at its root. UNC that had no prefixpath was used in that case, so the is_path_accessible check was not triggered and the box later hit a BUG() because we were chasing a DFS referral on the root dentry for the mount." Upstream fix: 70945643722ffeac779d2529a348f99567fa5c33 References: https://bugzilla.redhat.com/show_bug.cgi?id=682829 https://github.com/mirrors/linux/commit/70945643722ffeac779d2529a348f99567fa5c33 Thanks, -- Petr Matousek / Red Hat Security Response Team
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