On Thu, Apr 18, 2019 at 11:19:32AM -0700, Taras Kondratiuk wrote:
> Quoting Sasha Levin (2019-04-18 06:46:12)
> > On Wed, Apr 17, 2019 at 03:16:05PM -0700, Taras Kondratiuk wrote:
> > >Upstream commit 3fe6e52f0626 ("ovl: override creds with the ones from
> > >the superblock mounter") is present in v4.4.156 as 121b09d30d48. But the
> > >patch has a few follow up fixes in upstream that also have to be applied
> > >to 4.4:
> > >d0e13f5bbe4b ("ovl: fix uid/gid when creating over whiteout") in v4.7-rc4
> > >8fc646b44385 ("ovl: fix random return value on mount") in v4.13-rc2
> >
> > The 2nd patch does not apply cleanly and seems to depend on 1175b6b8d96
> > and 51f8f3c4e225.
>
> The context is slightly modified by 51f8f3c4e225, but it looks
> irrelevant. The fix should be still valid, because err value can be set
> to PTR_ERR(mnt) above and when prepare_creds() fails ovl_fill_super()
> will return a random value of mnt pointer instead of a proper error
> code.
Can you provide a working backport please, so that it can be applied?
thanks,
greg k-h
