xfs: return an error when an inline directory is too small
If the size of an inline directory is so small that it doesn't even cover the required header size, return an error to userspace instead of ASSERTing and returning 0 like everything's ok. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reported-by: Jan Kara <jack@suse.cz> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
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@ -84,7 +84,8 @@ xfs_dir2_sf_getdents(
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sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
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ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(sfp->i8count));
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if (dp->i_d.di_size < xfs_dir2_sf_hdr_size(sfp->i8count))
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return -EFSCORRUPTED;
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/*
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* If the block number in the offset is out of range, we're done.
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