Re: [syzbot] KASAN: use-after-free Read in srcu_invoke_callbacks

[Ming Lei]

On Tue, Jan 11, 2022 at 7:03 PM syzbot
<syzbot+4f789823c1abc5accf13@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:    3770333b3f8c Add linux-next specific files for 20220106
> git tree:       linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=171aa4e3b00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=f9eb40d9f910b474
> dashboard link: https://syzkaller.appspot.com/bug?extid=4f789823c1abc5accf13
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12b08f53b00000
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+4f789823c1abc5accf13@xxxxxxxxxxxxxxxxxxxxxxxxx

BTW, the report should be addressed by the patch:

https://lore.kernel.org/linux-block/20220111123401.520192-1-ming.lei@xxxxxxxxxx/T/#u

Thanks,
Ming