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Fix vuln OSV-2024-163 #2

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Fix vuln OSV-2024-163 #2

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4 changes: 4 additions & 0 deletions src/mat73.c
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Original file line number Diff line number Diff line change
Expand Up @@ -845,6 +845,10 @@ Mat_H5ReadGroupInfo(mat_t *mat, matvar_t *matvar, hid_t dset_id)
return err;
}

if (nfields == 0) {
return MATIO_E_GENERIC_READ_ERROR;
}

/* Check if the variable is sparse */
if ( H5Aexists_by_name(dset_id, ".", "MATLAB_sparse", H5P_DEFAULT) ) {
herr_t herr;
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