From: Max Gurtovoy <mgurtovoy@nvidia.com>
To: Chaitanya Kulkarni <kch@nvidia.com>, hare@suse.de
Cc: kbusch@kernel.org, hch@lst.de, sagi@grimberg.me,
linux-nvme@lists.infradead.org
Subject: Re: [PATCH 1/2] nvme-core: fix memory leak in dhchap_secret_store
Date: Thu, 27 Apr 2023 15:32:40 +0300 [thread overview]
Message-ID: <bc3aac8e-d505-9737-f83f-e797801b856f@nvidia.com> (raw)
In-Reply-To: <20230427080456.18232-1-kch@nvidia.com>
On 27/04/2023 11:04, Chaitanya Kulkarni wrote:
> Free dhchap_secret in nvme_ctrl_dhchap_secret_store() before we return
> when nvme_auth_generate_key() returns error.
>
> Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
> ---
> drivers/nvme/host/core.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
> index 518c759346f0..5a9d97c0c0c1 100644
> --- a/drivers/nvme/host/core.c
> +++ b/drivers/nvme/host/core.c
> @@ -3814,8 +3814,10 @@ static ssize_t nvme_ctrl_dhchap_secret_store(struct device *dev,
> int ret;
>
> ret = nvme_auth_generate_key(dhchap_secret, &key);
> - if (ret)
> + if (ret) {
> + kfree(dhchap_secret);
> return ret;
> + }
> kfree(opts->dhchap_secret);
> opts->dhchap_secret = dhchap_secret;
> host_key = ctrl->host_key;
This doesn't solve the leak we have in case strcmp return 0 (also for
patch 2/2).
Can you please address before sending the next version ?
prev parent reply other threads:[~2023-04-27 12:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-27 8:04 [PATCH 1/2] nvme-core: fix memory leak in dhchap_secret_store Chaitanya Kulkarni
2023-04-27 8:04 ` [PATCH 2/2] nvme-core: fix memory leak in dhchap_ctrl_secret Chaitanya Kulkarni
2023-04-27 8:09 ` [PATCH 1/2] nvme-core: fix memory leak in dhchap_secret_store Sagi Grimberg
2023-04-27 8:32 ` Chaitanya Kulkarni
2023-04-27 12:32 ` Max Gurtovoy [this message]
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=bc3aac8e-d505-9737-f83f-e797801b856f@nvidia.com \
--to=mgurtovoy@nvidia.com \
--cc=hare@suse.de \
--cc=hch@lst.de \
--cc=kbusch@kernel.org \
--cc=kch@nvidia.com \
--cc=linux-nvme@lists.infradead.org \
--cc=sagi@grimberg.me \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox