From: "Krzysztof Wilczyński" <kw@linux.com>
To: Ma Ke <make24@iscas.ac.cn>
Cc: lpieralisi@kernel.org, mani@kernel.org, kishon@kernel.org,
bhelgaas@google.com, jpinto@synopsys.com,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
stable@vger.kernel.org
Subject: Re: [PATCH] PCI: endpoint: Fix a double free in __pci_epc_create()
Date: Tue, 14 Jan 2025 09:57:37 +0900 [thread overview]
Message-ID: <20250114005737.GA2004845@rocinante> (raw)
In-Reply-To: <20250107074601.789649-1-make24@iscas.ac.cn>
Hello,
> The put_device(&epc->dev) call will trigger pci_epc_release() which
> frees "epc" so the kfree(epc) on the next line is a double free.
>
> Found by code review.
>
> Cc: stable@vger.kernel.org
> Fixes: 5e8cb4033807 ("PCI: endpoint: Add EP core layer to enable EP controller and EP functions")
> Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Which kernel release did you review? I don't see this kfree() when looking
at the current code base per:
https://elixir.bootlin.com/linux/v6.13-rc1/source/drivers/pci/endpoint/pci-epc-core.c#L956-L1020
Krzysztof
next prev parent reply other threads:[~2025-01-14 0:57 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-07 7:46 [PATCH] PCI: endpoint: Fix a double free in __pci_epc_create() Ma Ke
2025-01-14 0:57 ` Krzysztof Wilczyński [this message]
2025-02-20 16:23 ` Krzysztof Wilczyński
-- strict thread matches above, loose matches on Subject: below --
2025-01-02 9:30 Ma Ke
2025-01-03 10:28 ` Markus Elfring
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20250114005737.GA2004845@rocinante \
--to=kw@linux.com \
--cc=bhelgaas@google.com \
--cc=jpinto@synopsys.com \
--cc=kishon@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=lpieralisi@kernel.org \
--cc=make24@iscas.ac.cn \
--cc=mani@kernel.org \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.