Re: [PATCH 2/2] Check tcsetpgrp p is a process group.

From	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH 2/2] Check tcsetpgrp p is a process group.
Date	2015-06-28 01:30 +0200
Message-ID	<pG7HP-3A1-3@gated-at.bofh.it> (permalink)
References	<pG5G2-JJ-3@gated-at.bofh.it> <pG5G2-JJ-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On Sat, Jun 27, 2015 at 05:17:03PM -0400, Patrick Donnelly wrote:
> This fixes a bug where a process can set the foreground process group to its
> pid even if its pid is not a valid pgrp.
> 
> Signed-off-by: Patrick Donnelly <batrick@batbytes.com>
> ---
>  drivers/tty/tty_io.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
> index 401d05e..c20a2fb 100644
> --- a/drivers/tty/tty_io.c
> +++ b/drivers/tty/tty_io.c
> @@ -2560,9 +2560,11 @@ static int tiocspgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t
>  {
>  	struct pid *pgrp;
>  	pid_t pgrp_nr;
> -	int retval = tty_check_change(real_tty);
> +	int retval;
>  	unsigned long flags;
>  
> +	retval = tty_check_change(real_tty);

Why this churn?

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Re: [PATCH 2/2] Check tcsetpgrp p is a process group. Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-06-28 01:30 +0200
  Re: [PATCH 2/2] Check tcsetpgrp p is a process group. Patrick Donnelly <batrick@batbytes.com> - 2015-06-28 03:00 +0200

csiph-web