linux-kernel - setting all 3 file times

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <787b0d920705201309y16ba2778ob052fde375f0c58d@mail.gmail.com>
Date:	Sun, 20 May 2007 16:09:56 -0400
From:	"Albert Cahalan" <acahalan@...il.com>
To:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: setting all 3 file times

Why can we still not do this?

It's a stupid restriction. Security isn't a reason;
we have SE Linux policy and auditing to take
care of any issues. Heck, SE Linux policy could
even deny this feature for the truly paranoid.

Writing to /dev/* to update timestamps is surely
a worse security situation. (see "dump" program)

Ideally we'd have atomic update in some way.
That might mean feeding the old times into the
system call, so that the kernel can fail it if any
changes have happened meanwhile. Maybe the
syscall could take a pair of "struct stat" even,
making the operation really easy and powerful.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/