linux-kernel - Re: [syzbot] [udf?] KASAN: null-ptr-deref Write in udf_write

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Message-ID: <000000000000478fb705f5b2d79c@google.com>
Date:   Mon, 27 Feb 2023 10:42:28 -0800
From:   syzbot <syzbot+8a5a459f324d510ea15a@...kaller.appspotmail.com>
To:     jack@...e.com, jack@...e.cz, khoroshilov@...ras.ru,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        lvc-project@...uxtesting.org, pchelkin@...ras.ru,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [udf?] KASAN: null-ptr-deref Write in udf_write_fi

syzbot suspects this issue was fixed by commit:

commit e9109a92d2a95889498bed3719cd2318892171a2
Author: Jan Kara <jack@...e.cz>
Date:   Thu Oct 6 14:41:23 2022 +0000

    udf: Convert udf_rename() to new directory iteration code

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1191f00f480000
start commit:   55be6084c8e0 Merge tag 'timers-core-2022-10-05' of git://g..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=df75278aabf0681a
dashboard link: https://syzkaller.appspot.com/bug?extid=8a5a459f324d510ea15a
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=100a46c2880000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=116a4e72880000

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

#syz fix: udf: Convert udf_rename() to new directory iteration code

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