linux-hardening - Re: [PATCH v6 2/5] lib: fix memparse() to handle overflow

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 for Android: free password hash cracker in your pocket

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

Message-ID: <64fe0370ed23d00fc891901414811ad06d7b5d9b.camel@yandex.ru>
Date: Thu, 12 Feb 2026 14:21:12 +0300
From: Dmitry Antipov <dmantipov@...dex.ru>
To: Andy Shevchenko <andriy.shevchenko@...el.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>, Kees Cook <kees@...nel.org>, 
 "Darrick J . Wong"
	 <djwong@...nel.org>, linux-hardening@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 2/5] lib: fix memparse() to handle overflow

On Tue, 2026-02-10 at 09:51 +0200, Andy Shevchenko wrote:

> Strictly speaking this is an ABI breakage. I dunno how many (broken) strings
> will stop working after this check.

Yes, but this is for the corner case only (where ULLONG_MAX is used instead of
ignoring an overflow). And finding more bugs is better than silently hiding them.

Dmitry