From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5C3123FC2 for ; Sat, 28 Aug 2021 00:17:46 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10089"; a="197612636" X-IronPort-AV: E=Sophos;i="5.84,358,1620716400"; d="scan'208";a="197612636" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Aug 2021 17:17:45 -0700 X-IronPort-AV: E=Sophos;i="5.84,358,1620716400"; d="scan'208";a="528512880" Received: from mjmartin-desk2.amr.corp.intel.com (HELO mjmartin-desk2.intel.com) ([10.251.16.51]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Aug 2021 17:17:45 -0700 From: Mat Martineau To: netdev@vger.kernel.org Cc: Mat Martineau , davem@davemloft.net, kuba@kernel.org, matthieu.baerts@tessares.net, mptcp@lists.linux.dev, pabeni@redhat.com Subject: [PATCH net 0/2] mptcp: Prevent tcp_push() crash and selftest temp file buildup Date: Fri, 27 Aug 2021 17:17:29 -0700 Message-Id: <20210828001731.67757-1-mathew.j.martineau@linux.intel.com> X-Mailer: git-send-email 2.33.0 Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit These are two fixes for the net tree, addressing separate issues. Patch 1 addresses a divide-by-zero crash seen in syzkaller and also reported by a user on the netdev list. This changes MPTCP code so tcp_push() cannot be called with an invalid (0) mss_now value. Patch 2 fixes a selftest temp file cleanup issue that consumes excessive disk space when running repeated tests. Matthieu Baerts (1): selftests: mptcp: clean tmp files in simult_flows Paolo Abeni (1): mptcp: fix possible divide by zero net/mptcp/protocol.c | 78 +++++++++---------- .../selftests/net/mptcp/simult_flows.sh | 4 +- 2 files changed, 39 insertions(+), 43 deletions(-) base-commit: 5fe2a6b4344cbb2120d6d81e371b7ec8e75f03e2 -- 2.33.0