Re: [GIT PULL] TTY/Serial driver fixes for 6.2-rc7

[Linus Torvalds]

On Sun, Feb 5, 2023 at 3:53 AM Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
>
> George Kennedy (1):
>       vc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAF

Hmm.

I think the "goto unlock_out" should be a "break". A partial read
should return the partial success, not an error.

That situation didn't exist when the check was outside the loop, but does now.

Now, I don't think this matters for any sane situation, but since I
looked at this patch I thought I'd mention it.

                   Linus