linux-kernel - Re: [PATCH v2 4/5] statx: don't clear STATX_ATIME on SB

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: <16708.1539963610@warthog.procyon.org.uk>
Date:   Fri, 19 Oct 2018 16:40:10 +0100
From:   David Howells <dhowells@...hat.com>
To:     Miklos Szeredi <mszeredi@...hat.com>
Cc:     dhowells@...hat.com, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-api@...r.kernel.org,
        Michael Kerrisk <mtk.manpages@...il.com>,
        Andreas Dilger <adilger@...ger.ca>,
        Florian Weimer <fw@...eb.enyo.de>,
        Amir Goldstein <amir73il@...il.com>
Subject: Re: [PATCH v2 4/5] statx: don't clear STATX_ATIME on SB_RDONLY

Miklos Szeredi <mszeredi@...hat.com> wrote:

> IS_NOATIME(inode) is defined as __IS_FLG(inode, SB_RDONLY|SB_NOATIME), so
> generic_fillattr() will clear STATX_ATIME from the result_mask if the super
> block is marked read only.
> 
> This was probably not the intention, so fix to only clear STATX_ATIME if
> the fs doesn't support atime at all.
> 
> Signed-off-by: Miklos Szeredi <mszeredi@...hat.com>

Acked-by: David Howells <dhowells@...hat.com>