From: Florian Westphal fw@strlen.de
[ Upstream commit 30a56a2b881821625f79837d4d968c679852444e ]
In case the entry is evicted via garbage collection there is delay between the timeout value and the eviction event.
This adjusts the stop value based on how much time has passed.
Fixes: b87a2f9199ea82 ("netfilter: conntrack: add gc worker to remove timed-out entries") Signed-off-by: Florian Westphal fw@strlen.de Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/netfilter/nf_conntrack_core.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index ede0ab5dc400..f13b476378aa 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -506,8 +506,13 @@ bool nf_ct_delete(struct nf_conn *ct, u32 portid, int report) return false;
tstamp = nf_conn_tstamp_find(ct); - if (tstamp && tstamp->stop == 0) + if (tstamp) { + s32 timeout = ct->timeout - nfct_time_stamp; + tstamp->stop = ktime_get_real_ns(); + if (timeout < 0) + tstamp->stop -= jiffies_to_nsecs(-timeout); + }
if (nf_conntrack_event_report(IPCT_DESTROY, ct, portid, report) < 0) {