From 315f9720db94af3319c9550feaf473b9cf09aeac Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ond=C5=99ej=20Lyson=C4=9Bk?= Date: Thu, 3 May 2018 13:20:28 +0200 Subject: [PATCH 2/4] 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 -- 2.14.3