netfilter: nft_lookup: only cancel tracking for clobbered dregs
authorFlorian Westphal <fw@strlen.de>
Mon, 14 Mar 2022 17:23:03 +0000 (18:23 +0100)
committerPablo Neira Ayuso <pablo@netfilter.org>
Sat, 19 Mar 2022 23:29:46 +0000 (00:29 +0100)
commite50ae445fb70e99f8bdb5493f0aac2d941028c34
treeda9c912c3e8e3b100e7d0c2833bff360c7026c24
parent03858af0135f4efc90802e164bdc13477801afe2
netfilter: nft_lookup: only cancel tracking for clobbered dregs

In most cases, nft_lookup will be read-only, i.e. won't clobber
registers.  In case of map, we need to cancel the registers that will
see stores.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
net/netfilter/nft_lookup.c