Re: [PATCH bpf 1/2] bpf: fix map leak in HASH_OF_MAPS map

2020-07-27 Thread Song Liu
On Thu, Jul 23, 2020 at 6:17 PM Andrii Nakryiko 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 >

[PATCH bpf 1/2] bpf: fix map leak in HASH_OF_MAPS map

2020-07-23 Thread Andrii Nakryiko
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: fi