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FIPS-8 Legacy: CVEs CVE-2023-6622 and CVE-2024-26642 #6

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Merged
merged 2 commits into from
Nov 6, 2024
Merged

FIPS-8 Legacy: CVEs CVE-2023-6622 and CVE-2024-26642 #6

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8b122b1
netfilter: nf_tables: bail out on mismatching dynset and set expressions
gvrose8192 Nov 4, 2024
adc3478
netfilter: nf_tables: disallow anonymous set with timeout flag
gvrose8192 Nov 4, 2024
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3 changes: 3 additions & 0 deletions net/netfilter/nf_tables_api.c
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Original file line number Diff line number Diff line change
Expand Up @@ -4152,6 +4152,9 @@ static int nf_tables_newset(struct net *net, struct sock *nlsk,
if ((flags & (NFT_SET_EVAL | NFT_SET_OBJECT)) ==
(NFT_SET_EVAL | NFT_SET_OBJECT))
return -EOPNOTSUPP;
if ((flags & (NFT_SET_ANONYMOUS | NFT_SET_TIMEOUT | NFT_SET_EVAL)) ==
(NFT_SET_ANONYMOUS | NFT_SET_TIMEOUT))
return -EOPNOTSUPP;
}

dtype = 0;
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13 changes: 9 additions & 4 deletions net/netfilter/nft_dynset.c
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Original file line number Diff line number Diff line change
Expand Up @@ -274,10 +274,15 @@ static int nft_dynset_init(const struct nft_ctx *ctx,
priv->expr_array[i] = dynset_expr;
priv->num_exprs++;

if (set->num_exprs &&
dynset_expr->ops != set->exprs[i]->ops) {
err = -EOPNOTSUPP;
goto err_expr_free;
if (set->num_exprs) {
if (i >= set->num_exprs) {
err = -EINVAL;
goto err_expr_free;
}
if (dynset_expr->ops != set->exprs[i]->ops) {
err = -EOPNOTSUPP;
goto err_expr_free;
}
}
i++;
}
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