All of lore.kernel.org
 help / color / mirror / Atom feed
From: syzbot <syzbot+7170d66493145b71afd4@syzkaller.appspotmail.com>
To: Liam.Howlett@oracle.com, brauner@kernel.org,
	dan.carpenter@oracle.com, dvyukov@google.com,
	liam.howlett@oracle.com, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com,
	torvalds@linux-foundation.org, viro@zeniv.linux.org.uk,
	wanjiabing@vivo.com, willy@infradead.org
Subject: Re: [syzbot] KASAN: use-after-free Read in mas_next_nentry
Date: Wed, 25 Jan 2023 14:04:17 -0800	[thread overview]
Message-ID: <0000000000004dc42605f31dd05c@google.com> (raw)
In-Reply-To: <0000000000009ecbf205dda227bd@google.com>

syzbot suspects this issue was fixed by commit:

commit 59f2f4b8a757412fce372f6d0767bdb55da127a8
Author: Liam Howlett <liam.howlett@oracle.com>
Date:   Mon Nov 7 20:11:42 2022 +0000

    fs/userfaultfd: Fix maple tree iterator in userfaultfd_unregister()

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=129e8afe480000
start commit:   b229b6ca5abb Merge tag 'perf-tools-fixes-for-v6.1-2022-10-..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=a66c6c673fb555e8
dashboard link: https://syzkaller.appspot.com/bug?extid=7170d66493145b71afd4
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11bfb2a9880000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10b1d319880000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: fs/userfaultfd: Fix maple tree iterator in userfaultfd_unregister()

For information about bisection process see: https://goo.gl/tpsmEJ#bisection

  parent reply	other threads:[~2023-01-25 22:04 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-27 12:43 [syzbot] KASAN: use-after-free Read in mas_next_nentry syzbot
2022-04-27 12:55 ` Christian Brauner
2022-04-27 14:58   ` Matthew Wilcox
2022-04-27 15:17     ` Liam Howlett
2022-04-27 15:22       ` Dmitry Vyukov
2022-04-28  6:23         ` Dan Carpenter
2023-01-25 22:04 ` syzbot [this message]
2023-01-26 13:14   ` Liam R. Howlett
2023-01-27  7:09     ` Dmitry Vyukov

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=0000000000004dc42605f31dd05c@google.com \
    --to=syzbot+7170d66493145b71afd4@syzkaller.appspotmail.com \
    --cc=Liam.Howlett@oracle.com \
    --cc=brauner@kernel.org \
    --cc=dan.carpenter@oracle.com \
    --cc=dvyukov@google.com \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=syzkaller-bugs@googlegroups.com \
    --cc=torvalds@linux-foundation.org \
    --cc=viro@zeniv.linux.org.uk \
    --cc=wanjiabing@vivo.com \
    --cc=willy@infradead.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.