Re: [RESEND PATCH v18 0/4] overlayfs override_creds=off & nested get xattr fix

On 10/21/20 10:19 PM, Eric Biggers wrote:

On Wed, Oct 21, 2020 at 08:18:59AM -0700, Mark Salyzyn wrote:

quoted

Mark Salyzyn (3):
   Add flags option to get xattr method paired to __vfs_getxattr
   overlayfs: handle XATTR_NOSECURITY flag for get xattr method
   overlayfs: override_creds=off option bypass creator_cred

Mark Salyzyn + John Stultz (1):
   overlayfs: inode_owner_or_capable called during execv

The first three patches address fundamental security issues that should
be solved regardless of the override_creds=off feature.

The fourth adds the feature depends on these other fixes.

FYI, I didn't receive patch 4, and neither https://lkml.kernel.org/linux-fsdevel
nor https://lkml.kernel.org/linux-unionfs have it either.

- Eric

Resent again, thanks.