From: Edward Adam Davis <eadavis@qq.com>
To: syzbot+1b2d1134e0b675176a15@syzkaller.appspotmail.com
Cc: dhowells@redhat.com, jarkko@kernel.org, jmorris@namei.org,
keyrings@vger.kernel.org, linux-ext4@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-security-module@vger.kernel.org, paul@paul-moore.com,
serge@hallyn.com, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [keyrings?] [lsm?] [ext4?] possible deadlock in keyring_clear (2)
Date: Sun, 22 Sep 2024 19:28:13 +0800 [thread overview]
Message-ID: <tencent_AC4A33669E2C1B724B1C1BCA2552BA67BB08@qq.com> (raw)
In-Reply-To: <66eff723.050a0220.1b7b75.0000.GAE@google.com>
Use GFP_NOFS
#syz test
diff --git a/lib/assoc_array.c b/lib/assoc_array.c
index 388e656ac974..b6fd9e909b79 100644
--- a/lib/assoc_array.c
+++ b/lib/assoc_array.c
@@ -977,7 +977,7 @@ struct assoc_array_edit *assoc_array_insert(struct assoc_array *array,
*/
BUG_ON(assoc_array_ptr_is_meta(object));
- edit = kzalloc(sizeof(struct assoc_array_edit), GFP_KERNEL);
+ edit = kzalloc(sizeof(struct assoc_array_edit), GFP_NOFS);
if (!edit)
return ERR_PTR(-ENOMEM);
edit->array = array;
next prev parent reply other threads:[~2024-09-22 11:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-22 10:53 [syzbot] [keyrings?] [lsm?] [ext4?] possible deadlock in keyring_clear (2) syzbot
2024-09-22 11:28 ` Edward Adam Davis [this message]
2024-09-22 11:43 ` syzbot
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=tencent_AC4A33669E2C1B724B1C1BCA2552BA67BB08@qq.com \
--to=eadavis@qq.com \
--cc=dhowells@redhat.com \
--cc=jarkko@kernel.org \
--cc=jmorris@namei.org \
--cc=keyrings@vger.kernel.org \
--cc=linux-ext4@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-security-module@vger.kernel.org \
--cc=paul@paul-moore.com \
--cc=serge@hallyn.com \
--cc=syzbot+1b2d1134e0b675176a15@syzkaller.appspotmail.com \
--cc=syzkaller-bugs@googlegroups.com \
/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