From: Li Tuo <islituo@gmail.com>
To: maximlevitsky@gmail.com, oakad@yahoo.com, ulf.hansson@linaro.org
Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
baijiaju1990@gmail.com
Subject: [BUG] memstick: rtsx_usb_ms: possible uninitialized-variable access in rtsx_usb_ms_issue_cmd()
Date: Sat, 31 Jul 2021 14:36:49 +0800 [thread overview]
Message-ID: <e49e0ad5-d09d-4fa7-12a9-0608d9c9d800@gmail.com> (raw)
Hello,
Our static analysis tool finds a possible uninitialized-variable access
in the memstick driver in Linux 5.14.0-rc3:
At the beginning of the function rtsx_usb_ms_issue_cmd(), the variable
int_reg is not initialized.
If the following condition is true, it remains uninitialized.
469: if (req->long_data)
However, it is accessed in some statements such as:
491: if (int_reg & MS_INT_CMDNK)
I am not quite sure whether this possible uninitialized-variable access
is real and how to fix it if it is real.
Any feedback would be appreciated, thanks!
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Best wishes,
Tuo Li
reply other threads:[~2021-07-31 6:36 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=e49e0ad5-d09d-4fa7-12a9-0608d9c9d800@gmail.com \
--to=islituo@gmail.com \
--cc=baijiaju1990@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mmc@vger.kernel.org \
--cc=maximlevitsky@gmail.com \
--cc=oakad@yahoo.com \
--cc=ulf.hansson@linaro.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®