Re: [PATCH 0/2] MR6271: odbc32 fix creating descriptor

[Hans Leidekker (＠hans)]

On Wed Aug 14 07:16:37 2024 +0000, Alistair Leslie-Hughes wrote:
> First, it's using NULL as an offset to a pointer structure
> descriptor *create_descriptor( struct statement *stmt )
> ...
>    init_object( &ret->hdr, SQL_HANDLE_DESC, &stmt->hdr );
> Second a crash in set_desc_rec_win32, assumes that win32_funcs is valid.
> SQLSetDescRec
> ...
> struct descriptor *desc = (struct descriptor *)lock_object(
> DescriptorHandle, SQL_HANDLE_DESC );
> -> set_desc_rec_win32(desc)
> -> -> desc->hdr.win32_funcs->SQLSetDescRec

hdr is the first field so &stmt->hdr is NULL when stmt is NULL. win32_funcs should be set in alloc_handle(). If that's not the case then there must be a bug somewhere else. Can you show you are calling these funtions?