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SubjectRe: [PATCH V9 2/4] fuse: Trace daemon creds
On Wed, Sep 30, 2020 at 03:16:20PM -0400, Antonio SJ Musumeci wrote:
> On 9/30/2020 2:45 PM, Miklos Szeredi wrote:
> > On Thu, Sep 24, 2020 at 3:13 PM Alessio Balsini <balsini@android.com> wrote:
> > > Add a reference to the FUSE daemon credentials, so that they can be used to
> > > temporarily raise the user credentials when accessing lower file system
> > > files in passthrough.
> > Hmm, I think it would be better to store the creds of the ioctl()
> > caller together with the open file. The mounter may deliberately
> > have different privileges from the process doing the actual I/O.
> >
> > Thanks,
> > Miklos
>
>
> In my usecase I'm changing euid/egid of the thread to whichever the uid/gid
> was passed to the server which is otherwise running as root.
>

Ack, in the next patch set I will store the creds of the ioctl() caller.

Thanks,
Alessio

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