From: syzbot <syzbot+ee60e584b5c6bb229126@syzkaller.appspotmail.com>
To: adilger.kernel@dilger.ca, jack@suse.cz,
linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org,
ojaswin@linux.ibm.com, ritesh.list@gmail.com,
syzkaller-bugs@googlegroups.com, tytso@mit.edu
Subject: Re: [syzbot] [ext4?] KASAN: use-after-free Read in ext4_find_extent (4)
Date: Thu, 27 Mar 2025 16:44:03 -0700 [thread overview]
Message-ID: <67e5e2c3.050a0220.2f068f.0050.GAE@google.com> (raw)
In-Reply-To: <6772fd43.050a0220.2f3838.04cd.GAE@google.com>
syzbot has bisected this issue to:
commit 93cdf49f6eca5e23f6546b8f28457b2e6a6961d9
Author: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Date: Sat Mar 25 08:13:39 2023 +0000
ext4: Fix best extent lstart adjustment logic in ext4_mb_new_inode_pa()
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1566b43f980000
start commit: 1e1ba8d23dae Merge tag 'timers-clocksource-2025-03-26' of ..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=1766b43f980000
console output: https://syzkaller.appspot.com/x/log.txt?x=1366b43f980000
kernel config: https://syzkaller.appspot.com/x/.config?x=2edddb53537e0320
dashboard link: https://syzkaller.appspot.com/bug?extid=ee60e584b5c6bb229126
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1623343f980000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1123343f980000
Reported-by: syzbot+ee60e584b5c6bb229126@syzkaller.appspotmail.com
Fixes: 93cdf49f6eca ("ext4: Fix best extent lstart adjustment logic in ext4_mb_new_inode_pa()")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
next prev parent reply other threads:[~2025-03-27 23:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-30 20:06 [syzbot] [ext4?] KASAN: use-after-free Read in ext4_find_extent (4) syzbot
2025-03-27 23:44 ` syzbot [this message]
2025-03-28 17:10 ` Ojaswin Mujoo
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=67e5e2c3.050a0220.2f068f.0050.GAE@google.com \
--to=syzbot+ee60e584b5c6bb229126@syzkaller.appspotmail.com \
--cc=adilger.kernel@dilger.ca \
--cc=jack@suse.cz \
--cc=linux-ext4@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=ojaswin@linux.ibm.com \
--cc=ritesh.list@gmail.com \
--cc=syzkaller-bugs@googlegroups.com \
--cc=tytso@mit.edu \
/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 NNTP newsgroup(s).