From: syzbot <syzbot+1ab243d3eebb2aabf4a4@syzkaller.appspotmail.com>
To: akpm@linux-foundation.org, axboe@kernel.dk, david@redhat.com,
io-uring@vger.kernel.org, jgg@ziepe.ca, jhubbard@nvidia.com,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
peterx@redhat.com, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [io-uring?] KASAN: null-ptr-deref Read in io_sqe_buffer_register
Date: Sun, 07 Sep 2025 21:30:02 -0700 [thread overview]
Message-ID: <68be5bca.050a0220.192772.0831.GAE@google.com> (raw)
In-Reply-To: <68b9b200.a00a0220.eb3d.0006.GAE@google.com>
syzbot has bisected this issue to:
commit da6b34293ff8dbb78f8b9278c9a492925bbf1f87
Author: David Hildenbrand <david@redhat.com>
Date: Mon Sep 1 15:03:40 2025 +0000
mm/gup: remove record_subpages()
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1240f962580000
start commit: 4ac65880ebca Add linux-next specific files for 20250904
git tree: linux-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=1140f962580000
console output: https://syzkaller.appspot.com/x/log.txt?x=1640f962580000
kernel config: https://syzkaller.appspot.com/x/.config?x=fbc16d9faf3a88a4
dashboard link: https://syzkaller.appspot.com/bug?extid=1ab243d3eebb2aabf4a4
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12a0e312580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=101e3e62580000
Reported-by: syzbot+1ab243d3eebb2aabf4a4@syzkaller.appspotmail.com
Fixes: da6b34293ff8 ("mm/gup: remove record_subpages()")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
prev parent reply other threads:[~2025-09-08 4:30 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-04 15:36 [syzbot] [io-uring?] KASAN: null-ptr-deref Read in io_sqe_buffer_register syzbot
2025-09-04 23:20 ` Jens Axboe
2025-09-05 3:25 ` Andrew Morton
2025-09-05 6:34 ` David Hildenbrand
2025-09-05 7:42 ` David Hildenbrand
2025-09-05 9:41 ` syzbot
2025-09-05 10:04 ` David Hildenbrand
2025-09-05 10:48 ` syzbot
2025-09-06 2:01 ` Andrew Morton
2025-09-08 4:30 ` syzbot [this message]
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