- **Files:** `crypto/x509/v3_conf.c:108,114,121`, `crypto/x509/v3_lib.c:181`, `crypto/x509/v3_prn.c:90,96,116,123,134` - **Root cause:** the `X509V3_EXT_METHOD` callback union (`v2i`, `s2i`, `r2i`, `i2v`, `i2r`, `i2s`, `ext_d2i`, `ext_free`) stored generically then called with concrete types.
crypto/x509/v3_conf.c:108,114,121,crypto/x509/v3_lib.c:181,crypto/x509/v3_prn.c:90,96,116,123,134X509V3_EXT_METHODcallback union (v2i,s2i,r2i,i2v,i2r,i2s,ext_d2i,ext_free) stored generically then called with concrete types.