Re: [syzbot] KASAN: slab-out-of-bounds Read in io_uring_show_fdinfo

[Pavel Begunkov <asml.silence@xxxxxxxxx>]

On 10/10/22 08:15, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:    a6afa4199d3d Merge tag 'mailbox-v6.1' of git://git.linaro...
> git tree:       upstream
> console+strace: https://syzkaller.appspot.com/x/log.txt?x=10cfc3fa880000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=e2021a61197ebe02
> dashboard link: https://syzkaller.appspot.com/bug?extid=e5198737e8a2d23d958c
> 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=108b448a880000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=13a0403a880000

#syz test: https://github.com/isilence/linux.git io_uring/fdinfo_fix

--
Pavel Begunkov