Hi Pablo, Please apply the next patch against your nf tree so that it'll get applied to older stable branches too. (The patch depends on another one.) - Lion Ackermann reported that there's a race condition between namespace cleanup and the garbage collection of the list:set type. The patch resolves the issue with other minor issues as well. Best regards, Jozsef The following changes since commit ece92825a1fa31cf704a5898fd599daab5cb6573: netfilter: nft_fib: allow from forward/input without iif selector (2024-05-23 17:56:31 +0200) are available in the Git repository at: git://blackhole.kfki.hu/nf 9bb49a1f0354a2e for you to fetch changes up to 9bb49a1f0354a2ed2854af40d7051188b9b85837: netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type (2024-06-04 09:23:46 +0200) ---------------------------------------------------------------- Jozsef Kadlecsik (1): netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type net/netfilter/ipset/ip_set_core.c | 81 ++++++++++++++++++++--------------- net/netfilter/ipset/ip_set_list_set.c | 30 ++++++------- 2 files changed, 60 insertions(+), 51 deletions(-)