linux-kernel - Re: Kernels v4.9+ cause short reads of block devices

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

Message-ID: <67f6a756-dcb5-96d1-f6e3-0536e29f96d9@nazar.ca>
Date:   Tue, 29 Aug 2017 06:40:13 -0400
From:   Doug Nazar <nazard@...ar.ca>
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Andreas Dilger <adilger@...ger.ca>
Cc:     Al Viro <viro@...iv.linux.org.uk>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Wei Fang <fangwei1@...wei.com>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Mark Fasheh <mfasheh@...sity.com>,
        Joel Becker <jlbec@...lplan.org>,
        Dave Kleikamp <shaggy@...nel.org>
Subject: Re: Kernels v4.9+ cause short reads of block devices

On 8/27/17 3:47 PM, Linus Torvalds wrote:
> Note to people: I just committed the patch to update MAX_LFS_FILESIZE.
> I made it use the simpler (and clearer) calculation of
>
>      ((loff_t)ULONG_MAX << PAGE_SHIFT)
>
> for the 32-bit case, and I did *not* change any other users.

Not a problem... I got caught trying to find out why 4.13 hangs on a
warm reset. It has really slowed down my testing having towalk couple
of floors for every reboot.

Doug