Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx> wrote: > syzbot is reporting underflow of nft_counters_enabled counter at > nf_tables_addchain() [1], for commit 43eb8949cfdffa76 ("netfilter: > nf_tables: do not leave chain stats enabled on error") missed that > nf_tables_chain_destroy() after nft_basechain_init() in the error path of > nf_tables_addchain() decrements the counter because nft_basechain_init() > makes nft_is_base_chain() return true by setting NFT_CHAIN_BASE flag. > > Increment the counter immediately after returning from > nft_basechain_init(). Applied, thanks.