On May 20 2019, Miklos Szeredi <miklos(a)szeredi.hu> wrote:
On Mon, May 20, 2019 at 04:41:37PM +0200, Miklos Szeredi wrote:
> On Wed, May 15, 2019 at 03:26:47PM -0400, Vivek Goyal wrote:
> > If fuse daemon is started with cache=never, fuse falls back to direct IO.
> > In that write path we don't call file_remove_privs() and that means setuid
> > bit is not cleared if unpriviliged user writes to a file with setuid bit set.
> > pjdfstest chmod test 12.t tests this and fails.
> I think better sulution is to tell the server if the suid bit needs to be
> removed, so it can do so in a race free way.
> Here's the kernel patch, and I'll reply with the libfuse patch.
Here are the patches for libfuse and passthrough_ll.
Could you also submit them as pull requests at https://github.com/libfuse/libfuse/pulls?
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