xfs: fail out of xfs_attr3_leaf_lookup_int if it looks corrupt
authorDarrick J. Wong <darrick.wong@oracle.com>
Mon, 8 Jan 2018 18:51:07 +0000 (10:51 -0800)
committerDarrick J. Wong <darrick.wong@oracle.com>
Mon, 8 Jan 2018 18:54:47 +0000 (10:54 -0800)
commit8ba92d43d499f4920af983a7c16e02304dd36932
tree48abe89c855c9d9ecc7be9a40fca11e88d1605fc
parent9cfb9b47479e237d217dbcfafe034cbf98f45909
xfs: fail out of xfs_attr3_leaf_lookup_int if it looks corrupt

If the xattr leaf block looks corrupt, return -EFSCORRUPTED to userspace
instead of ASSERTing on debug kernels or running off the end of the
buffer on regular kernels.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
fs/xfs/libxfs/xfs_attr_leaf.c