linux-kernel - Re: [PATCH] btrfs: remove BUG

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: <38c5aa97-675b-b4fa-14ab-04988a9c6a39@suse.com>
Date:   Sun, 15 Dec 2019 19:42:50 +0200
From:   Nikolay Borisov <nborisov@...e.com>
To:     Aditya Pakki <pakki001@....edu>
Cc:     kjlu@....edu, Chris Mason <clm@...com>,
        Josef Bacik <josef@...icpanda.com>,
        David Sterba <dsterba@...e.com>, linux-btrfs@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] btrfs: remove BUG_ON used as assertions



On 15.12.19 г. 19:12 ч., Aditya Pakki wrote:
> alloc_extent_state_atomic() allocates extents via GFP_ATOMIC flag
> and cannot fail. There are multiple invocations of BUG_ON on the
> return value to check for failure. The patch replaces certain
> invocations of BUG_ON by returning the error upstream.
> 
> Signed-off-by: Aditya Pakki <pakki001@....edu>

Have you actually audited all callers of __set_extent_bit whether they
correctly handle failures?