linux-kernel - Re: KASAN: use-after-free Read in screen_glyph

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Date:   Tue, 14 Jan 2020 07:38:05 +0100
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     wchenbt@....ust.hk
Cc:     LKML <linux-kernel@...r.kernel.org>,
        syzkaller <syzkaller@...glegroups.com>
Subject: Re: KASAN: use-after-free Read in screen_glyph_unicode

Hi Wei,

You should add relevant kernel maintainers to CC list when reporting
kernel bugs, nobody is generally reading LKML mailing list. Please
see:
https://github.com/google/syzkaller/blob/master/docs/linux/reporting_kernel_bugs.md
or any other kernel bug reporting guide.



On Tue, Jan 14, 2020 at 7:33 AM <wchenbt@....ust.hk> wrote:
>
> Dear Linux kernel developers,
>
> I found the crash “KASAN: use-after-free Read in screen_glyph_unicode”
> when running syzkaller, hope it’s unknown:
>
> Linux version: 1c163f4c7b3f Linux 5.0
> Branch: KASAN: use-after-free in screen_glyph drivers/tty/vt/vt.c:4566
>
> Please get rhe C repo and crash log generated by syzkaller from google
> drive https://drive.google.com/drive/folders/1zolqAlgnweSbr2-OzFFH2Neot4RGMBiV?usp=sharing,
> as well as the .config I used for linux kernel from the attachment.
> Thanks.
>
> Thanks,
> Wei
>
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