From: Chen Ridong <chenridong@huaweicloud.com>
To: ysato@users.sourceforge.jp, dalias@libc.org,
glaubitz@physik.fu-berlin.de, gregkh@linuxfoundation.org,
ricardo@marliere.net, damm@opensource.se, lethal@linux-sh.org
Cc: linux-sh@vger.kernel.org, chenridong@huawei.com, wangweiyang2@huawei.com
Subject: [PATCH] sh: intc: Fix possible UAF in register_intc_controller
Date: Wed, 30 Oct 2024 06:08:13 +0000 [thread overview]
Message-ID: <20241030060813.1307698-1-chenridong@huaweicloud.com> (raw)
From: Chen Ridong <chenridong@huawei.com>
When it goes to error, the 'd' is freed, but 'd->list' was not deleted
from 'intc_list', which may lead to a UAF.
Fixes: 01e9651a21bc ("sh: add INTC out of memory error handling")
Signed-off-by: Chen Ridong <chenridong@huawei.com>
---
drivers/sh/intc/core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/sh/intc/core.c b/drivers/sh/intc/core.c
index 74350b5871dc..a30d205e7a43 100644
--- a/drivers/sh/intc/core.c
+++ b/drivers/sh/intc/core.c
@@ -387,6 +387,7 @@ int __init register_intc_controller(struct intc_desc *desc)
kfree(d->window);
err1:
+ list_del(&d->list);
kfree(d);
err0:
pr_err("unable to allocate INTC memory\n");
--
2.34.1
next reply other threads:[~2024-10-30 6:17 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-30 6:08 Chen Ridong [this message]
2024-11-07 0:57 ` [PATCH] sh: intc: Fix possible UAF in register_intc_controller Chen Ridong
2024-11-07 7:35 ` John Paul Adrian Glaubitz
2024-11-07 7:57 ` Chen Ridong
2024-11-13 6:21 ` Chen Ridong
2024-11-13 8:35 ` John Paul Adrian Glaubitz
2024-11-14 3:02 ` Chen Ridong
2024-11-13 8:26 ` Geert Uytterhoeven
2024-11-25 1:21 ` Chen Ridong
2024-11-25 7:13 ` John Paul Adrian Glaubitz
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=20241030060813.1307698-1-chenridong@huaweicloud.com \
--to=chenridong@huaweicloud.com \
--cc=chenridong@huawei.com \
--cc=dalias@libc.org \
--cc=damm@opensource.se \
--cc=glaubitz@physik.fu-berlin.de \
--cc=gregkh@linuxfoundation.org \
--cc=lethal@linux-sh.org \
--cc=linux-sh@vger.kernel.org \
--cc=ricardo@marliere.net \
--cc=wangweiyang2@huawei.com \
--cc=ysato@users.sourceforge.jp \
/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;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).