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: <20200424101153.GC456@infradead.org>
Date:   Fri, 24 Apr 2020 03:11:53 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Ritesh Harjani <riteshh@...ux.ibm.com>
Cc:     linux-ext4@...r.kernel.org, jack@...e.cz, tytso@....edu,
        adilger@...ger.ca, darrick.wong@...cle.com, hch@...radead.org,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        "Aneesh Kumar K . V" <aneesh.kumar@...ux.ibm.com>,
        Murphy Zhou <jencce.kernel@...il.com>,
        Miklos Szeredi <miklos@...redi.hu>,
        Amir Goldstein <amir73il@...il.com>,
        linux-fsdevel@...r.kernel.org, linux-unionfs@...r.kernel.org
Subject: Re: [PATCH 0/5] ext4/overlayfs: fiemap related fixes

I think the right fix is to move fiemap_check_ranges into all the ->fiemap
instances (we only have a few actual implementation minus the wrappers
around iomap/generic).  Then add a version if iomap_fiemap that can pass
in maxbytes explicitly for ext4, similar to what we've done with various
other generic helpers.

The idea of validating input against file systems specific paramaters
before we call into the fs is just bound to cause problems.

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ