From: Tobias Ulmer <tu@emlix.com>
Date: Mon, 14 Nov 2016 16:29:44 +0000 (+0100)
Subject: e2lib: don't leak writefunc file descriptor into chroot
X-Git-Tag: e2factory-2.3.15rc1~6
X-Git-Url: https://git.e2factory.org/?a=commitdiff_plain;h=cefc2bb91e63f1b2b22b471e3a2cfb2ddd9c86f2;p=e2factory.git

e2lib: don't leak writefunc file descriptor into chroot

Signed-off-by: Tobias Ulmer <tu@emlix.com>
---

diff --git a/generic/e2lib.lua b/generic/e2lib.lua
index 36d3cc0..b0cf1ac 100644
--- a/generic/e2lib.lua
+++ b/generic/e2lib.lua
@@ -1142,6 +1142,12 @@ function e2lib.callcmd(argv, fdctv, workdir, envdict)
                 fdct._p.rfd = rc
                 fdct._p.wfd = re
                 fdct._p.buffer = ""
+
+                rc, re = eio.cloexec(fdct._p.wfd)
+                if not rc then
+                    return false, re
+                end
+
             elseif fdct.istype == "readfo" then
             else
                 return false, err.new("while setting up parent file " ..