From: Etienne CHAMPETIER <champetier.etienne@gmail.com>
Date: Thu, 8 Oct 2015 20:01:44 +0000 (+0000)
Subject: jail: Add MS_NODEV MS_NOEXEC MS_NOSUID mount options where needed
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=ef490722885a5c708c70dff656d094c7043ae081;p=oweals%2Fprocd.git

jail: Add MS_NODEV MS_NOEXEC MS_NOSUID mount options where needed

this completes fafbf7338ec8304f2a0ec0ba76048fba2c01c07e

Signed-off-by: Etienne CHAMPETIER <champetier.etienne@gmail.com>
---

diff --git a/jail/jail.c b/jail/jail.c
index f459a5e..56dc9ca 100644
--- a/jail/jail.c
+++ b/jail/jail.c
@@ -193,11 +193,11 @@ static int build_jail_fs()
 	rmdir("/old");
 	if (opts.procfs) {
 		mkdir("/proc", 0755);
-		mount("proc", "/proc", "proc", MS_NOATIME, 0);
+		mount("proc", "/proc", "proc", MS_NOATIME | MS_NODEV | MS_NOEXEC | MS_NOSUID, 0);
 	}
 	if (opts.sysfs) {
 		mkdir("/sys", 0755);
-		mount("sysfs", "/sys", "sysfs", MS_NOATIME, 0);
+		mount("sysfs", "/sys", "sysfs", MS_NOATIME | MS_NODEV | MS_NOEXEC | MS_NOSUID, 0);
 	}
 	if (opts.ronly)
 		mount(NULL, "/", NULL, MS_RDONLY | MS_REMOUNT, 0);