linux-kernel - Re: [syzbot] [ntfs?] KASAN: use-after-free Read in ntfs_test

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Message-ID: <000000000000a27dcc060624b16e@google.com>
Date:   Sun, 24 Sep 2023 18:15:29 -0700
From:   syzbot <syzbot+2751da923b5eb8307b0b@...kaller.appspotmail.com>
To:     anton@...era.com, brauner@...nel.org, linkinjeon@...nel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-ntfs-dev@...ts.sourceforge.net, linux@...ck-us.net,
        phil@...lpotter.co.uk, syzkaller-bugs@...glegroups.com,
        torvalds@...ux-foundation.org
Subject: Re: [syzbot] [ntfs?] KASAN: use-after-free Read in ntfs_test_inode

syzbot has bisected this issue to:

commit 78a06688a4d40d9bb6138e2b9ad3353d7bf0157a
Author: Christian Brauner <brauner@...nel.org>
Date:   Thu Sep 7 16:03:40 2023 +0000

    ntfs3: drop inode references in ntfs_put_super()

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1674a5c1680000
start commit:   3aba70aed91f Merge tag 'gpio-fixes-for-v6.6-rc3' of git://..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1574a5c1680000
console output: https://syzkaller.appspot.com/x/log.txt?x=1174a5c1680000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e4ca82a1bedd37e4
dashboard link: https://syzkaller.appspot.com/bug?extid=2751da923b5eb8307b0b
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=136b4412680000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11aec0dc680000

Reported-by: syzbot+2751da923b5eb8307b0b@...kaller.appspotmail.com
Fixes: 78a06688a4d4 ("ntfs3: drop inode references in ntfs_put_super()")

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