On Thu, Jul 23, 2020 at 6:17 PM Andrii Nakryiko <andriin@xxxxxx> wrote:
>
> Fix HASH_OF_MAPS bug of not putting inner map pointer on bpf_map_elem_update()
> operation. This is due to per-cpu extra_elems optimization, which bypassed
> free_htab_elem() logic doing proper clean ups. Make sure that inner map is put
> properly in optimized case as well.
>
> Fixes: 8c290e60fa2a ("bpf: fix hashmap extra_elems logic")
> Signed-off-by: Andrii Nakryiko <andriin@xxxxxx>
Acked-by: Song Liu <songliubraving@xxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v4.14+
