From 315f9720db94af3319c9550feaf473b9cf09aeac Mon Sep 17 00:00:00 2001

From: =?UTF-8?q?Ond=C5=99ej=20Lyson=C4=9Bk?= <olysonek@redhat.com>

Date: Thu, 3 May 2018 13:20:28 +0200

Subject: [PATCH 53/59] Always do chdir("/") after chroot()

Always do chdir("/") after chroot() to be more sure we'll never get out

of it. This will not affect the working directory after calling

vsf_sysutil_chroot(), because in the current state vsftpd always calls

vsf_sysutil_chroot(".").

---

 sysutil.c | 5 +++++

 1 file changed, 5 insertions(+)

diff --git a/sysutil.c b/sysutil.c

index b68583b..3014c05 100644

--- a/sysutil.c

+++ b/sysutil.c

@@ -2588,6 +2588,11 @@ vsf_sysutil_chroot(const char* p_root_path)

   {

     die("chroot");

   }

+  retval = chdir("/");

+  if (retval != 0)

+  {

+    die("chdir");

+  }

 }

 unsigned int

-- 

2.14.4