[gnutls-devel] GnuTLS | gnutls_buffer_append_data: avoid use-after-free in the callers (!1399)
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Tue Mar 9 17:31:54 CET 2021
Anderson Sasaki commented on a discussion on lib/str.c: https://gitlab.com/gnutls/gnutls/-/merge_requests/1399#note_525386639
> if (unlikely(dest->data != NULL && dest->allocd == NULL))
> return gnutls_assert_val(GNUTLS_E_INVALID_REQUEST);
> + /* When running under valgrind, use a simpler logic for reallocation;
> + * i.e., always call gnutls_realloc_fast() and do not reclaim the
> + * no-longer-used area which has been removed from the beginning of
> + * buffer with _gnutls_buffer_pop_datum().
> + */
> +#ifdef HAVE_VALGRIND_MEMCHECK_H
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