On Aug 31 21:02, Takashi Yano via Cygwin-patches wrote:
> - Commit 4e08fe42c9f3fdba63a57a8e3a6d705c4e10f50f has a bug which
>   may cause infinite loop in pty_master_fwd_thread(). This patch
>   fixes the issue.
> ---
>  winsup/cygwin/fhandler_tty.cc | 13 +++++--------
>  1 file changed, 5 insertions(+), 8 deletions(-)
> 
> diff --git a/winsup/cygwin/fhandler_tty.cc b/winsup/cygwin/fhandler_tty.cc
> index e4e94f114..8bf39c3e6 100644
> --- a/winsup/cygwin/fhandler_tty.cc
> +++ b/winsup/cygwin/fhandler_tty.cc
> @@ -2168,15 +2168,12 @@ fhandler_pty_master::pty_master_fwd_thread ()
>             /* Remove Set title sequence */
>             char *p0, *p1;
>             p0 = outbuf;
> -           while ((p0 = (char *) memmem (p0, rlen, "\033]0;", 4)))
> +           while ((p0 = (char *) memmem (p0, rlen, "\033]0;", 4))
> +                  && (p1 = (char *) memchr (p0, '\007', rlen-(p0-outbuf))))
>               {
> -               p1 = (char *) memchr (p0, '\007', rlen - (p0 - outbuf));
> -               if (p1)
> -                 {
> -                   memmove (p0, p1 + 1, rlen - (p1 + 1 - outbuf));
> -                   rlen -= p1 + 1 - p0;
> -                   wlen = rlen;
> -                 }
> +               memmove (p0, p1 + 1, rlen - (p1 + 1 - outbuf));
> +               rlen -= p1 + 1 - p0;
> +               wlen = rlen;
>               }
>           }
>         /* Remove CSI > Pm m */
> -- 
> 2.28.0

Pushed.


Thanks,
Corinna

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