Date: Sat, 13 Jul 2024 12:02:52 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 262180] jail escaping via jail-friendly nullfs Message-ID: <bug-262180-227-9Wimnss2Cg@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-262180-227@https.bugs.freebsd.org/bugzilla/> References: <bug-262180-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D262180 --- Comment #6 from Thibault Payet <monwarez@mailoo.org> --- (In reply to Thibault Payet from comment #5) Note that this does not work on ZFS if each jail are in separate datasets. = See the result when using a dataset for /j zfs create zroot/j zfs set mountpoint=3D/j zroot/j mkdir /j/1 mkdir -p /tmp/a /tmp/a/b/c /tmp/a/b/c/test /tmp/a/d mount -t nullfs /tmp/a/b/c /tmp/a/d cd /tmp/a/d/test/ mv /tmp/a/b/c/test /tmp/a/b/test ls -al ../../../../.. Return ls: ..: No such file or directory total 2 drwxr-xr-x 3 0 0 3 Jul 13 11:54 . drwxr-xr-x 7 0 0 7 Jul 13 11:54 1 And ls -al ../../../../../.. Return ls: ../../../../../..: No such file or directory --=20 You are receiving this mail because: You are the assignee for the bug.=
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