[PATCH 0/5] fscrypt: report correct st_size for encrypted symlinks

[Eric Biggers]

On Thu, Jul 01, 2021 at 11:53:45PM -0700, Eric Biggers wrote:
> This series makes the stat() family of syscalls start reporting the
> correct size for encrypted symlinks.
> 
> See patch 1 for a detailed explanation of the problem and solution.
> 
> Patch 1 adds a helper function that computes the correct size for an
> encrypted symlink.  Patches 2-4 make the filesystems with fscrypt
> support use it, and patch 5 updates the documentation.
> 
> This series applies to mainline commit 3dbdb38e2869.
> 
> Eric Biggers (5):
>   fscrypt: add fscrypt_symlink_getattr() for computing st_size
>   ext4: report correct st_size for encrypted symlinks
>   f2fs: report correct st_size for encrypted symlinks
>   ubifs: report correct st_size for encrypted symlinks
>   fscrypt: remove mention of symlink st_size quirk from documentation
> 
>  Documentation/filesystems/fscrypt.rst |  5 ---
>  fs/crypto/hooks.c                     | 44 +++++++++++++++++++++++++++
>  fs/ext4/symlink.c                     | 12 +++++++-
>  fs/f2fs/namei.c                       | 12 +++++++-
>  fs/ubifs/file.c                       | 13 +++++++-
>  include/linux/fscrypt.h               |  7 +++++
>  6 files changed, 85 insertions(+), 8 deletions(-)
> 
> 
> base-commit: 3dbdb38e286903ec220aaf1fb29a8d94297da246

All applied to fscrypt.git#master for 5.15.

- Eric