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-rw-r--r--net/netfilter/ipset/ip_set_hash_gen.h42
-rw-r--r--net/netfilter/nf_tables_api.c10
-rw-r--r--net/netfilter/nft_dynset.c15
-rw-r--r--net/netfilter/xt_RATEEST.c3
4 files changed, 38 insertions, 32 deletions
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 5f1208ad049e..6186358eac7c 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -141,20 +141,6 @@ htable_size(u8 hbits)
return hsize * sizeof(struct hbucket *) + sizeof(struct htable);
}
-/* Compute htable_bits from the user input parameter hashsize */
-static u8
-htable_bits(u32 hashsize)
-{
- /* Assume that hashsize == 2^htable_bits */
- u8 bits = fls(hashsize - 1);
-
- if (jhash_size(bits) != hashsize)
- /* Round up to the first 2^n value */
- bits = fls(hashsize);
-
- return bits;
-}
-
#ifdef IP_SET_HASH_WITH_NETS
#if IPSET_NET_COUNT > 1
#define __CIDR(cidr, i) (cidr[i])
@@ -640,7 +626,7 @@ mtype_resize(struct ip_set *set, bool retried)
struct htype *h = set->data;
struct htable *t, *orig;
u8 htable_bits;
- size_t dsize = set->dsize;
+ size_t hsize, dsize = set->dsize;
#ifdef IP_SET_HASH_WITH_NETS
u8 flags;
struct mtype_elem *tmp;
@@ -664,14 +650,12 @@ mtype_resize(struct ip_set *set, bool retried)
retry:
ret = 0;
htable_bits++;
- if (!htable_bits) {
- /* In case we have plenty of memory :-) */
- pr_warn("Cannot increase the hashsize of set %s further\n",
- set->name);
- ret = -IPSET_ERR_HASH_FULL;
- goto out;
- }
- t = ip_set_alloc(htable_size(htable_bits));
+ if (!htable_bits)
+ goto hbwarn;
+ hsize = htable_size(htable_bits);
+ if (!hsize)
+ goto hbwarn;
+ t = ip_set_alloc(hsize);
if (!t) {
ret = -ENOMEM;
goto out;
@@ -813,6 +797,12 @@ cleanup:
if (ret == -EAGAIN)
goto retry;
goto out;
+
+hbwarn:
+ /* In case we have plenty of memory :-) */
+ pr_warn("Cannot increase the hashsize of set %s further\n", set->name);
+ ret = -IPSET_ERR_HASH_FULL;
+ goto out;
}
/* Get the current number of elements and ext_size in the set */
@@ -1521,7 +1511,11 @@ IPSET_TOKEN(HTYPE, _create)(struct net *net, struct ip_set *set,
if (!h)
return -ENOMEM;
- hbits = htable_bits(hashsize);
+ /* Compute htable_bits from the user input parameter hashsize.
+ * Assume that hashsize == 2^htable_bits,
+ * otherwise round up to the first 2^n value.
+ */
+ hbits = fls(hashsize - 1);
hsize = htable_size(hbits);
if (hsize == 0) {
kfree(h);
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 8d5aa0ac45f4..15c467f1a9dd 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -4162,7 +4162,7 @@ static int nf_tables_newset(struct net *net, struct sock *nlsk,
if (flags & ~(NFT_SET_ANONYMOUS | NFT_SET_CONSTANT |
NFT_SET_INTERVAL | NFT_SET_TIMEOUT |
NFT_SET_MAP | NFT_SET_EVAL |
- NFT_SET_OBJECT | NFT_SET_CONCAT))
+ NFT_SET_OBJECT | NFT_SET_CONCAT | NFT_SET_EXPR))
return -EOPNOTSUPP;
/* Only one of these operations is supported */
if ((flags & (NFT_SET_MAP | NFT_SET_OBJECT)) ==
@@ -4304,6 +4304,10 @@ static int nf_tables_newset(struct net *net, struct sock *nlsk,
struct nlattr *tmp;
int left;
+ if (!(flags & NFT_SET_EXPR)) {
+ err = -EINVAL;
+ goto err_set_alloc_name;
+ }
i = 0;
nla_for_each_nested(tmp, nla[NFTA_SET_EXPRESSIONS], left) {
if (i == NFT_SET_EXPR_MAX) {
@@ -5254,8 +5258,8 @@ static int nft_set_elem_expr_clone(const struct nft_ctx *ctx,
return 0;
err_expr:
- for (k = i - 1; k >= 0; k++)
- nft_expr_destroy(ctx, expr_array[i]);
+ for (k = i - 1; k >= 0; k--)
+ nft_expr_destroy(ctx, expr_array[k]);
return -ENOMEM;
}
diff --git a/net/netfilter/nft_dynset.c b/net/netfilter/nft_dynset.c
index 983a1d5ca3ab..0b053f75cd60 100644
--- a/net/netfilter/nft_dynset.c
+++ b/net/netfilter/nft_dynset.c
@@ -19,6 +19,7 @@ struct nft_dynset {
enum nft_registers sreg_key:8;
enum nft_registers sreg_data:8;
bool invert;
+ bool expr;
u8 num_exprs;
u64 timeout;
struct nft_expr *expr_array[NFT_SET_EXPR_MAX];
@@ -175,11 +176,12 @@ static int nft_dynset_init(const struct nft_ctx *ctx,
if (tb[NFTA_DYNSET_FLAGS]) {
u32 flags = ntohl(nla_get_be32(tb[NFTA_DYNSET_FLAGS]));
-
- if (flags & ~NFT_DYNSET_F_INV)
- return -EINVAL;
+ if (flags & ~(NFT_DYNSET_F_INV | NFT_DYNSET_F_EXPR))
+ return -EOPNOTSUPP;
if (flags & NFT_DYNSET_F_INV)
priv->invert = true;
+ if (flags & NFT_DYNSET_F_EXPR)
+ priv->expr = true;
}
set = nft_set_lookup_global(ctx->net, ctx->table,
@@ -210,7 +212,7 @@ static int nft_dynset_init(const struct nft_ctx *ctx,
timeout = 0;
if (tb[NFTA_DYNSET_TIMEOUT] != NULL) {
if (!(set->flags & NFT_SET_TIMEOUT))
- return -EINVAL;
+ return -EOPNOTSUPP;
err = nf_msecs_to_jiffies64(tb[NFTA_DYNSET_TIMEOUT], &timeout);
if (err)
@@ -224,7 +226,7 @@ static int nft_dynset_init(const struct nft_ctx *ctx,
if (tb[NFTA_DYNSET_SREG_DATA] != NULL) {
if (!(set->flags & NFT_SET_MAP))
- return -EINVAL;
+ return -EOPNOTSUPP;
if (set->dtype == NFT_DATA_VERDICT)
return -EOPNOTSUPP;
@@ -261,6 +263,9 @@ static int nft_dynset_init(const struct nft_ctx *ctx,
struct nlattr *tmp;
int left;
+ if (!priv->expr)
+ return -EINVAL;
+
i = 0;
nla_for_each_nested(tmp, tb[NFTA_DYNSET_EXPRESSIONS], left) {
if (i == NFT_SET_EXPR_MAX) {
diff --git a/net/netfilter/xt_RATEEST.c b/net/netfilter/xt_RATEEST.c
index 37253d399c6b..0d5c422f8745 100644
--- a/net/netfilter/xt_RATEEST.c
+++ b/net/netfilter/xt_RATEEST.c
@@ -115,6 +115,9 @@ static int xt_rateest_tg_checkentry(const struct xt_tgchk_param *par)
} cfg;
int ret;
+ if (strnlen(info->name, sizeof(est->name)) >= sizeof(est->name))
+ return -ENAMETOOLONG;
+
net_get_random_once(&jhash_rnd, sizeof(jhash_rnd));
mutex_lock(&xn->hash_lock);
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-29 02:08:23 +0000