netdev - Re: [PATCH 11/20] ethernet: ucc_geth: fix use-after-free in ucc_geth

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: <e5c1443b-1582-51b8-f863-4eab6e9d1475@prevas.dk>
Date:   Sat, 5 Dec 2020 22:50:26 +0100
From:   Rasmus Villemoes <rasmus.villemoes@...vas.dk>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     Li Yang <leoyang.li@....com>,
        "David S. Miller" <davem@...emloft.net>,
        Zhao Qiang <qiang.zhao@....com>,
        Vladimir Oltean <vladimir.oltean@....com>,
        netdev@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 11/20] ethernet: ucc_geth: fix use-after-free in
 ucc_geth_remove()


> I only noticed because I needed to add a free of the ug_info in a later
> patch.

Where, ironically, I add a use-after-free bug by freeing ug_info before
the ucc_geth_memclean() call.

:facepalm: