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In the rtreedepth() function, detect OOM when converting a zeroblob() on

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input.  dbsqlfuzz ed23eda7cc3a8a054f85ea19d55c59ba2ca72744.

FossilOrigin-Name: 69f843c8fa6e21500b5777169c3b394453ba818b4e32427428480dca5b4ed615
This commit is contained in:
drh
2021-04-13 12:28:55 +00:00
parent 0e5cd34915
commit b3d2ba7cb0
3 changed files with 13 additions and 8 deletions
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7
ext/rtree/rtree.c
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@ -3890,11 +3890,16 @@ static void rtreedepth(sqlite3_context *ctx, int nArg, sqlite3_value **apArg){
UNUSED_PARAMETER(nArg);
if( sqlite3_value_type(apArg[0])!=SQLITE_BLOB
|| sqlite3_value_bytes(apArg[0])<2
){
sqlite3_result_error(ctx, "Invalid argument to rtreedepth()", -1);
}else{
u8 *zBlob = (u8 *)sqlite3_value_blob(apArg[0]);
sqlite3_result_int(ctx, readInt16(zBlob));
if( zBlob ){
sqlite3_result_int(ctx, readInt16(zBlob));
}else{
sqlite3_result_error_nomem(ctx);
}
}
}