netdev - Re: [PATCH] bnx2x: fix potential memory leak in bnx2x_tpa

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

Message-ID: <20220919142119.5b473800@kernel.org>
Date:   Mon, 19 Sep 2022 14:21:19 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Jianglei Nie <niejianglei2021@....com>
Cc:     aelior@...vell.com, skalluru@...vell.com, manishc@...vell.com,
        davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] bnx2x: fix potential memory leak in bnx2x_tpa_stop()

On Wed,  7 Sep 2022 14:51:28 +0800 Jianglei Nie wrote:
> bnx2x_tpa_stop() allocates a memory chunk from new_data with
> bnx2x_frag_alloc(). The new_data should be freed when gets some error.
> But when "pad + len > fp->rx_buf_size" is true, bnx2x_tpa_stop() returns
> without releasing the new_data, which will lead to a memory leak.
> 
> We should free the new_data with bnx2x_frag_free() when "pad + len >
> fp->rx_buf_size" is true.

Please add a Fixes tag and repost.