xfs: fix ondisk symlink target validation in xrep_dinode_check_dfork

LOLLM noticed that online repair of a broken symlink file could fail
unnecessarily if a local-format symlink target isn't null terminated.
The ondisk target isn't required to be null terminated, but repair
enforces that anyway because it uses the validator for the incore
symlink target.  (The incore buffer is always null-terminated).  Fix
this by reverting the changes to xfs_symlink_shortform_verify and adding
an ondisk-specific helper in inode_repair.c.

Cc: stable@vger.kernel.org # v6.8
Fixes: e744cef2060559 ("xfs: zap broken inode forks")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Assisted-by: LOLLM # finding obvious bugs
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dgc@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>

0 files changed, 0 insertions, 0 deletions