fix core dump after seg vcf write

brentp · Dec 9, 2023 · cf0b54e · cf0b54e
1 parent f6d9fde
commit cf0b54e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/cyvcf2/cyvcf2.pyx b/cyvcf2/cyvcf2.pyx
@@ -2404,7 +2404,7 @@ cdef class Writer(VCF):
         if not self.header_written:
             self.write_header()
         if var.b.errcode == BCF_ERR_CTG_UNDEF:
-            h = bcf_hdr_id2hrec(self.ohdr, BCF_DT_CTG, 0, var.b.rid)
+            h = bcf_hdr_id2hrec(bcf_hdr_dup(self.ohdr), BCF_DT_CTG, 0, var.b.rid)
             if h == NULL:
                 raise Exception("contig %d unknown and not found in header" % var.b.rid)
             if bcf_hdr_add_hrec(self.hdr, h) < 0: