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Message-ID: <20221214084358.161f9d6f@kernel.org> Date: Wed, 14 Dec 2022 08:43:58 -0800 From: Jakub Kicinski <kuba@...nel.org> To: Leon Romanovsky <leon@...nel.org> Cc: Nir Levy <bhr166@...il.com>, davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com, linux-atm-general@...ts.sourceforge.net, netdev@...r.kernel.org Subject: Re: [PATCH net v2] net: atm: Fix use-after-free bug in atm_dev_register() On Wed, 14 Dec 2022 09:51:09 +0200 Leon Romanovsky wrote: > > Also atm_dev_register() still frees the dev on atm_register_sysfs() > > failure, is that okay? > > Yes, the kernel panic points that class_dev (not dev) had use-after-free. How is that possible? "class_dev" is embedded in dev (struct atm_dev).
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