Re: [PATCH RFC v2] fhandle: expose u64 mount id to name_to_handle_at(2)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, May 29, 2024 at 09:25:49AM +1000, Dave Chinner wrote:
> But no-one has bothered to reply or acknowledge my comments so I'll
> point them out again and repeat: Filehandles generated by
> the kernel for unprivileged use *must* be self describing and self
> validating as the kernel must be able to detect and prevent
> unprivelged users from generating custom filehandles that can be
> used to access files outside the restricted scope of their
> container.

We must not generate file handle for unprivileged use at all, as they
bypass all the path based access controls.





[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [NTFS 3]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [NTFS 3]     [Samba]     [Device Mapper]     [CEPH Development]

  Powered by Linux