netdev - Re: [v7, net-next 01/10] bng_en: make bnge_alloc

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: <CANXQDtbXG2XjBa2ja1LY7gdALg-PnEyvQBWPAiXQqD0hvtwp=g@mail.gmail.com>
Date: Thu, 18 Sep 2025 15:20:09 +0530
From: Bhargava Chenna Marreddy <bhargava.marreddy@...adcom.com>
To: Simon Horman <horms@...nel.org>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, 
	pabeni@...hat.com, andrew+netdev@...n.ch, netdev@...r.kernel.org, 
	linux-kernel@...r.kernel.org, michael.chan@...adcom.com, 
	pavan.chebbi@...adcom.com, vsrama-krishna.nemani@...adcom.com, 
	vikas.gupta@...adcom.com, 
	Rajashekar Hudumula <rajashekar.hudumula@...adcom.com>
Subject: Re: [v7, net-next 01/10] bng_en: make bnge_alloc_ring() self-unwind
 on failure

On Tue, Sep 16, 2025 at 8:43 PM Simon Horman <horms@...nel.org> wrote:
>
> On Fri, Sep 12, 2025 at 01:04:56AM +0530, Bhargava Marreddy wrote:
> > Ensure bnge_alloc_ring() frees any intermediate allocations
> > when it fails. This enables later patches to rely on this
> > self-unwinding behavior.
> >
> > Signed-off-by: Bhargava Marreddy <bhargava.marreddy@...adcom.com>
> > Reviewed-by: Vikas Gupta <vikas.gupta@...adcom.com>
> > Reviewed-by: Rajashekar Hudumula <rajashekar.hudumula@...adcom.com>
>
> Without this patch(set), does the code correctly release resources on error?
>
> If not, I think this should be considered a fix for net with appropriate
> Fixes tag(s).

Thanks for your feedback, Simon. This patch doesn't introduce a fix;
the code already frees resources correctly.
Instead, it modifies error handling by changing from caller-unwind to
self-unwind within this function

>
> ...