linux-kernel - Re: [PATCH net-next] can: j1939: fix uaf in j1939_session

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Message-ID: <20240807071655.5b230108@kernel.org>
Date: Wed, 7 Aug 2024 07:16:55 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Edward Adam Davis <eadavis@...com>
Cc: syzbot+ad601904231505ad6617@...kaller.appspotmail.com,
 davem@...emloft.net, edumazet@...gle.com, kernel@...gutronix.de,
 leitao@...ian.org, linux-can@...r.kernel.org, linux-kernel@...r.kernel.org,
 mkl@...gutronix.de, netdev@...r.kernel.org, o.rempel@...gutronix.de,
 pabeni@...hat.com, robin@...tonic.nl, socketcan@...tkopp.net,
 syzkaller-bugs@...glegroups.com
Subject: Re: [PATCH net-next] can: j1939: fix uaf in j1939_session_destroy

On Wed,  7 Aug 2024 20:35:47 +0800 Edward Adam Davis wrote:
> Fixes: c9c0ee5f20c5 ("net: skbuff: Skip early return in skb_unref when debugging")

Definitely not where the _bug_ was added, as Breno said.
It is kinda tempting to annotate somehow that this commit helped catch
the bug, tho. Not sure how.