Subject: firejail: manpage's list of directories mounted by default is incomplete
Date: Sat, 25 May 2024 22:40:59 +0200
Package: firejail
Version: 0.9.72-2
Severity: minor
X-Debbugs-Cc: [email protected]
Dear Maintainer,
Firejail's manpage says:
>The default Firejail filesystem is based on the host filesystem with the main
system directories mounted read-only. These directories are /etc, /var, /usr,
/bin, /sbin, /lib, /lib32, /libx32 and /lib64. Only /home and /tmp are
writable.
This list seems incomplete, because when I run `firejail` or `firejail
--private`, I can also read /dev, /opt, /media, /mnt, /proc, /run, /srv, and
/sys from within the sandbox.
I don't know if this is due to Debian-specific changes, so I'm raising it here
instead of upstream.
-- System Information:
Debian Release: 12.5
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'oldstable-updates'), (500, 'oldstable-security'), (500, 'oldoldstable-updates'), (500, 'oldoldstable'), (500, 'stable'), (500, 'oldstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 6.1.0-20-amd64 (SMP w/4 CPU threads; PREEMPT)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages firejail depends on:
ii libapparmor1 3.0.8-3
ii libc6 2.36-9+deb12u4
ii libselinux1 3.4-1+b6
Versions of packages firejail recommends:
ii firejail-profiles 0.9.72-2
ii iproute2 6.1.0-3
ii iptables 1.8.9-2
ii xauth 1:1.1.2-1
ii xdg-dbus-proxy 0.1.4-3
ii xserver-xephyr 2:21.1.7-3+deb12u7
ii xvfb 2:21.1.7-3+deb12u7
firejail suggests no packages.
-- no debconf information
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