linux-kernel - Re: [Y2038] [PATCH] prism54: isl

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] [day] [month] [year] [list]

Message-ID: <4052607.z5Cu6oJFz8@wuerfel>
Date:	Tue, 22 Mar 2016 12:51:11 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	y2038@...ts.linaro.org
Cc:	Tina Ruchandani <ruchandani.tina@...il.com>,
	Kalle Valo <kvalo@...eaurora.org>, netdev@...r.kernel.org,
	linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [Y2038] [PATCH] prism54: isl_38xx: Replace 'struct timeval'

On Tuesday 22 March 2016 02:55:22 Tina Ruchandani wrote:
> Truly fixing this would 
> require changing the debug print to print more than 8 digits and using 
> a different specifier from %li.

Why not just change it to %lli, and a cast to s64? I don't think the
format string or the number of digits is important here because it's just
debug output that is normally disabled.

I also see an existing bug in the format string: "%08li.%08li" means we
end up printing a six digit microsecond value with two leading zeros,
which is rather confusing. I think using "%lld.%06ld" would be best
here, or possibly "%lld.%09ld" to print the whole nanoseconds so we
can skip the division.

	Arnd