Re: [PATCH v5 3/3] fanotify, audit: Allow audit to use the full permission event response

Hello Richard,

On Monday, January 9, 2023 10:08:04 PM EST Richard Guy Briggs wrote:
> When I use an application that expected the old API, meaning it simply
> does:
> > 
> > response.fd = metadata->fd;
> > response.response = reply;
> > close(metadata->fd);
> > write(fd, &response, sizeof(struct fanotify_response));
> > 
> > I get access denials. Every time. If the program is using the new API and
> > sets FAN_INFO, then it works as expected. I'll do some more testing but I
> > think there is something wrong in the compatibility path.
> 
> I'll have a closer look, because this wasn't the intended behaviour.

I have done more testing. I think what I saw might have been caused by a 
stale selinux label (label exists, policy is deleted). With selinux in 
permissive mode it's all working as expected - both old and new API.

-Steve


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