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netfilter: nft_last: incorrect arithmetics when restoring last used

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Subtract the jiffies that have passed by to current jiffies to fix last
used restoration.

Fixes: 836382dc2471 ("netfilter: nf_tables: add last expression")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2021-07-05 20:14:21 +02:00
parent 6ac4bac4ce
commit d1b5b80da7
1 changed files with 1 additions and 1 deletions
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2
net/netfilter/nft_last.c
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@ -37,7 +37,7 @@ static int nft_last_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
if (err < 0)
return err;
priv->last_jiffies = jiffies + (unsigned long)last_jiffies;
priv->last_jiffies = jiffies - (unsigned long)last_jiffies;
}
return 0;