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Re: [Qemu-devel] [PATCH] monitor: properly handle invalid fd/vhostfd fro
From: |
Luiz Capitulino |
Subject: |
Re: [Qemu-devel] [PATCH] monitor: properly handle invalid fd/vhostfd from command line |
Date: |
Tue, 28 Sep 2010 11:53:43 -0300 |
On Mon, 27 Sep 2010 15:52:44 +0800
Jason Wang <address@hidden> wrote:
> monitor_get_fd() may also be used to parse fd or vhostfd from command line, so
> we need to check whether the pointer of mon is NULL to avoid segmentation
> fault
> when user pass invalid name of fd or vhostfd.
Invalid fdname is handled just fine, I have the impression this patch fixes
something else.
Could you elaborate on the real problem here and/or show to reproduce?
> Signed-off-by: Jason Wang <address@hidden>
> ---
> monitor.c | 4 ++++
> 1 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/monitor.c b/monitor.c
> index e602480..5bb4ff0 100644
> --- a/monitor.c
> +++ b/monitor.c
> @@ -2345,6 +2345,10 @@ int monitor_get_fd(Monitor *mon, const char *fdname)
> {
> mon_fd_t *monfd;
>
> + if (mon == NULL) {
> + return -1;
> + }
> +
> QLIST_FOREACH(monfd, &mon->fds, next) {
> int fd;
>
>
>