linux-kernel - Re: compat_sys_times() bogus until jiffies >= 0.

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

Message-Id: <20071107.165022.69369307.davem@davemloft.net>
Date:	Wed, 07 Nov 2007 16:50:22 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	akpm@...ux-foundation.org
Cc:	lkml@...idb.org, linux-kernel@...r.kernel.org, drepper@...hat.com,
	mtk-manpages@....net
Subject: Re: compat_sys_times() bogus until jiffies >= 0.

From: Andrew Morton <akpm@...ux-foundation.org>
Date: Wed, 7 Nov 2007 15:28:33 -0800

> Perhaps this is a bug in glibc: it is interpreting the times() return value
> in the same way as other syscalls.

The problem is more likely that we are failing to
invoke force_successful_syscall_return() here.

Otherwise the syscall return path interprets negative
values as errors, and sets the cpu condition codes.

And that is what userspace is actually checking for
to determine if there is an error or not.
-
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/