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Detect OOM earlier in the geopoly extension.

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dbsqlfuzz 0986e7b020e6137fc6b96331f91d15753d18e42d.

FossilOrigin-Name: 7237117595a3519717a0a4b03eb427c6ec55b214e7ecd6d0f63a613adec355d4
This commit is contained in:
drh
2021-04-06 22:56:28 +00:00
parent cc26301ec3
commit a74364ae13
3 changed files with 12 additions and 8 deletions
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4
ext/rtree/geopoly.c
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@ -310,6 +310,10 @@ static GeoPoly *geopolyFuncParam(
){
const unsigned char *a = sqlite3_value_blob(pVal);
int nVertex;
if( a==0 ){
sqlite3_result_error_nomem(pCtx);
return 0;
}
nVertex = (a[1]<<16) + (a[2]<<8) + a[3];
if( (a[0]==0 || a[0]==1)
&& (nVertex*2*sizeof(GeoCoord) + 4)==(unsigned int)nByte