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netfilter: nf_tables: missing objects with no memcg accounting
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Several ruleset objects are still not using GFP_KERNEL_ACCOUNT for
memory accounting, update them. This includes:

- catchall elements
- compat match large info area
- log prefix
- meta secctx
- numgen counters
- pipapo set backend datastructure
- tunnel private objects

Fixes: 33758c8 ("memcg: enable accounting for nft objects")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Pablo Neira Ayuso committed Sep 26, 2024
1 parent 4ffcf5c commit 69e687c
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Showing 7 changed files with 17 additions and 15 deletions.
2 changes: 1 addition & 1 deletion net/netfilter/nf_tables_api.c
Original file line number Diff line number Diff line change
Expand Up @@ -6684,7 +6684,7 @@ static int nft_setelem_catchall_insert(const struct net *net,
}
}

catchall = kmalloc(sizeof(*catchall), GFP_KERNEL);
catchall = kmalloc(sizeof(*catchall), GFP_KERNEL_ACCOUNT);
if (!catchall)
return -ENOMEM;

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6 changes: 3 additions & 3 deletions net/netfilter/nft_compat.c
Original file line number Diff line number Diff line change
Expand Up @@ -535,7 +535,7 @@ nft_match_large_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
struct xt_match *m = expr->ops->data;
int ret;

priv->info = kmalloc(XT_ALIGN(m->matchsize), GFP_KERNEL);
priv->info = kmalloc(XT_ALIGN(m->matchsize), GFP_KERNEL_ACCOUNT);
if (!priv->info)
return -ENOMEM;

Expand Down Expand Up @@ -808,7 +808,7 @@ nft_match_select_ops(const struct nft_ctx *ctx,
goto err;
}

ops = kzalloc(sizeof(struct nft_expr_ops), GFP_KERNEL);
ops = kzalloc(sizeof(struct nft_expr_ops), GFP_KERNEL_ACCOUNT);
if (!ops) {
err = -ENOMEM;
goto err;
Expand Down Expand Up @@ -898,7 +898,7 @@ nft_target_select_ops(const struct nft_ctx *ctx,
goto err;
}

ops = kzalloc(sizeof(struct nft_expr_ops), GFP_KERNEL);
ops = kzalloc(sizeof(struct nft_expr_ops), GFP_KERNEL_ACCOUNT);
if (!ops) {
err = -ENOMEM;
goto err;
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2 changes: 1 addition & 1 deletion net/netfilter/nft_log.c
Original file line number Diff line number Diff line change
Expand Up @@ -163,7 +163,7 @@ static int nft_log_init(const struct nft_ctx *ctx,

nla = tb[NFTA_LOG_PREFIX];
if (nla != NULL) {
priv->prefix = kmalloc(nla_len(nla) + 1, GFP_KERNEL);
priv->prefix = kmalloc(nla_len(nla) + 1, GFP_KERNEL_ACCOUNT);
if (priv->prefix == NULL)
return -ENOMEM;
nla_strscpy(priv->prefix, nla, nla_len(nla) + 1);
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2 changes: 1 addition & 1 deletion net/netfilter/nft_meta.c
Original file line number Diff line number Diff line change
Expand Up @@ -952,7 +952,7 @@ static int nft_secmark_obj_init(const struct nft_ctx *ctx,
if (tb[NFTA_SECMARK_CTX] == NULL)
return -EINVAL;

priv->ctx = nla_strdup(tb[NFTA_SECMARK_CTX], GFP_KERNEL);
priv->ctx = nla_strdup(tb[NFTA_SECMARK_CTX], GFP_KERNEL_ACCOUNT);
if (!priv->ctx)
return -ENOMEM;

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2 changes: 1 addition & 1 deletion net/netfilter/nft_numgen.c
Original file line number Diff line number Diff line change
Expand Up @@ -66,7 +66,7 @@ static int nft_ng_inc_init(const struct nft_ctx *ctx,
if (priv->offset + priv->modulus - 1 < priv->offset)
return -EOVERFLOW;

priv->counter = kmalloc(sizeof(*priv->counter), GFP_KERNEL);
priv->counter = kmalloc(sizeof(*priv->counter), GFP_KERNEL_ACCOUNT);
if (!priv->counter)
return -ENOMEM;

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13 changes: 7 additions & 6 deletions net/netfilter/nft_set_pipapo.c
Original file line number Diff line number Diff line change
Expand Up @@ -663,7 +663,7 @@ static int pipapo_realloc_mt(struct nft_pipapo_field *f,
check_add_overflow(rules, extra, &rules_alloc))
return -EOVERFLOW;

new_mt = kvmalloc_array(rules_alloc, sizeof(*new_mt), GFP_KERNEL);
new_mt = kvmalloc_array(rules_alloc, sizeof(*new_mt), GFP_KERNEL_ACCOUNT);
if (!new_mt)
return -ENOMEM;

Expand Down Expand Up @@ -936,7 +936,7 @@ static void pipapo_lt_bits_adjust(struct nft_pipapo_field *f)
return;
}

new_lt = kvzalloc(lt_size + NFT_PIPAPO_ALIGN_HEADROOM, GFP_KERNEL);
new_lt = kvzalloc(lt_size + NFT_PIPAPO_ALIGN_HEADROOM, GFP_KERNEL_ACCOUNT);
if (!new_lt)
return;

Expand Down Expand Up @@ -1212,7 +1212,7 @@ static int pipapo_realloc_scratch(struct nft_pipapo_match *clone,
scratch = kzalloc_node(struct_size(scratch, map,
bsize_max * 2) +
NFT_PIPAPO_ALIGN_HEADROOM,
GFP_KERNEL, cpu_to_node(i));
GFP_KERNEL_ACCOUNT, cpu_to_node(i));
if (!scratch) {
/* On failure, there's no need to undo previous
* allocations: this means that some scratch maps have
Expand Down Expand Up @@ -1427,7 +1427,7 @@ static struct nft_pipapo_match *pipapo_clone(struct nft_pipapo_match *old)
struct nft_pipapo_match *new;
int i;

new = kmalloc(struct_size(new, f, old->field_count), GFP_KERNEL);
new = kmalloc(struct_size(new, f, old->field_count), GFP_KERNEL_ACCOUNT);
if (!new)
return NULL;

Expand Down Expand Up @@ -1457,7 +1457,7 @@ static struct nft_pipapo_match *pipapo_clone(struct nft_pipapo_match *old)
new_lt = kvzalloc(src->groups * NFT_PIPAPO_BUCKETS(src->bb) *
src->bsize * sizeof(*dst->lt) +
NFT_PIPAPO_ALIGN_HEADROOM,
GFP_KERNEL);
GFP_KERNEL_ACCOUNT);
if (!new_lt)
goto out_lt;

Expand All @@ -1470,7 +1470,8 @@ static struct nft_pipapo_match *pipapo_clone(struct nft_pipapo_match *old)

if (src->rules > 0) {
dst->mt = kvmalloc_array(src->rules_alloc,
sizeof(*src->mt), GFP_KERNEL);
sizeof(*src->mt),
GFP_KERNEL_ACCOUNT);
if (!dst->mt)
goto out_mt;

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5 changes: 3 additions & 2 deletions net/netfilter/nft_tunnel.c
Original file line number Diff line number Diff line change
Expand Up @@ -509,13 +509,14 @@ static int nft_tunnel_obj_init(const struct nft_ctx *ctx,
return err;
}

md = metadata_dst_alloc(priv->opts.len, METADATA_IP_TUNNEL, GFP_KERNEL);
md = metadata_dst_alloc(priv->opts.len, METADATA_IP_TUNNEL,
GFP_KERNEL_ACCOUNT);
if (!md)
return -ENOMEM;

memcpy(&md->u.tun_info, &info, sizeof(info));
#ifdef CONFIG_DST_CACHE
err = dst_cache_init(&md->u.tun_info.dst_cache, GFP_KERNEL);
err = dst_cache_init(&md->u.tun_info.dst_cache, GFP_KERNEL_ACCOUNT);
if (err < 0) {
metadata_dst_free(md);
return err;
Expand Down

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