linux-kernel - max_user_watches overflows on 16TB system.

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>] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 1 Oct 2010 15:01:43 -0500
From:	Robin Holt <holt@....com>
To:	Davide Libenzi <davidel@...ilserver.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Pekka Enberg <penberg@...helsinki.fi>
Cc:	linux-kernel@...r.kernel.org
Subject: max_user_watches overflows on 16TB system.

Following a boot of a 16TB system, we noticed that the max_user_watches
sysctl was negative.  Is there any downside to converting that to a
static long and handling the fallout from the change?  I believe that
fallout includes changing the definition of epoll_watches over to an
atomic_long_t as well.

Alternatively should we just limit max_user_watches to INT_MAX?

Thanks,
Robin Holt
--
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/