public inbox for pve-devel@lists.proxmox.com
 help / color / mirror / Atom feed
From: Fabian Ebner <f.ebner@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH container 1/2] setup: untaint path to host timezone
Date: Thu,  7 Oct 2021 12:48:02 +0200	[thread overview]
Message-ID: <20211007104803.40204-1-f.ebner@proxmox.com> (raw)

To avoid an error with 'pct create ... --timezone host'.

Reported in the community forum:
https://forum.proxmox.com/threads/pct-create-command-with-timezone-host-option-fails-to-create-a-container.97538/

Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
---
 src/PVE/LXC/Setup.pm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/PVE/LXC/Setup.pm b/src/PVE/LXC/Setup.pm
index 4e211ef..7c377ab 100644
--- a/src/PVE/LXC/Setup.pm
+++ b/src/PVE/LXC/Setup.pm
@@ -114,7 +114,9 @@ sub new {
 
     # Cache some host files we need access to:
     $plugin->{host_resolv_conf} = PVE::INotify::read_file('resolvconf');
-    $plugin->{host_localtime} = abs_path('/etc/localtime');
+
+    abs_path('/etc/localtime') =~ m|^(/.+)| or die "invalid /etc/localtime\n"; # untaint
+    $plugin->{host_localtime} = $1;
 
     # pass on user namespace information:
     my ($id_map, $rootuid, $rootgid) = PVE::LXC::parse_id_maps($conf);
-- 
2.30.2





             reply	other threads:[~2021-10-07 10:48 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-07 10:48 Fabian Ebner [this message]
2021-10-07 10:48 ` [pve-devel] [PATCH container 2/2] setup: also set contents of /etc/timezone Fabian Ebner
2021-10-07 12:34   ` [pve-devel] applied: " Thomas Lamprecht
2021-10-07 12:33 ` [pve-devel] applied: [PATCH container 1/2] setup: untaint path to host timezone Thomas Lamprecht

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20211007104803.40204-1-f.ebner@proxmox.com \
    --to=f.ebner@proxmox.com \
    --cc=pve-devel@lists.proxmox.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Service provided by Proxmox Server Solutions GmbH | Privacy | Legal