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Diffstat (limited to 'net/core')
-rw-r--r--net/core/filter.c21
-rw-r--r--net/core/netdev-genl.c19
-rw-r--r--net/core/rtnetlink.c5
-rw-r--r--net/core/skmsg.c11
4 files changed, 34 insertions, 22 deletions
diff --git a/net/core/filter.c b/net/core/filter.c
index 21131ec25f24..834614071727 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -3734,13 +3734,22 @@ static const struct bpf_func_proto bpf_skb_adjust_room_proto = {
static u32 __bpf_skb_min_len(const struct sk_buff *skb)
{
- u32 min_len = skb_network_offset(skb);
+ int offset = skb_network_offset(skb);
+ u32 min_len = 0;
- if (skb_transport_header_was_set(skb))
- min_len = skb_transport_offset(skb);
- if (skb->ip_summed == CHECKSUM_PARTIAL)
- min_len = skb_checksum_start_offset(skb) +
- skb->csum_offset + sizeof(__sum16);
+ if (offset > 0)
+ min_len = offset;
+ if (skb_transport_header_was_set(skb)) {
+ offset = skb_transport_offset(skb);
+ if (offset > 0)
+ min_len = offset;
+ }
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ offset = skb_checksum_start_offset(skb) +
+ skb->csum_offset + sizeof(__sum16);
+ if (offset > 0)
+ min_len = offset;
+ }
return min_len;
}
diff --git a/net/core/netdev-genl.c b/net/core/netdev-genl.c
index 9527dd46e4dc..2d3ae0cd3ad2 100644
--- a/net/core/netdev-genl.c
+++ b/net/core/netdev-genl.c
@@ -430,10 +430,10 @@ static int
netdev_nl_queue_fill(struct sk_buff *rsp, struct net_device *netdev, u32 q_idx,
u32 q_type, const struct genl_info *info)
{
- int err = 0;
+ int err;
if (!(netdev->flags & IFF_UP))
- return err;
+ return -ENOENT;
err = netdev_nl_queue_validate(netdev, q_idx, q_type);
if (err)
@@ -488,24 +488,21 @@ netdev_nl_queue_dump_one(struct net_device *netdev, struct sk_buff *rsp,
struct netdev_nl_dump_ctx *ctx)
{
int err = 0;
- int i;
if (!(netdev->flags & IFF_UP))
return err;
- for (i = ctx->rxq_idx; i < netdev->real_num_rx_queues;) {
- err = netdev_nl_queue_fill_one(rsp, netdev, i,
+ for (; ctx->rxq_idx < netdev->real_num_rx_queues; ctx->rxq_idx++) {
+ err = netdev_nl_queue_fill_one(rsp, netdev, ctx->rxq_idx,
NETDEV_QUEUE_TYPE_RX, info);
if (err)
return err;
- ctx->rxq_idx = i++;
}
- for (i = ctx->txq_idx; i < netdev->real_num_tx_queues;) {
- err = netdev_nl_queue_fill_one(rsp, netdev, i,
+ for (; ctx->txq_idx < netdev->real_num_tx_queues; ctx->txq_idx++) {
+ err = netdev_nl_queue_fill_one(rsp, netdev, ctx->txq_idx,
NETDEV_QUEUE_TYPE_TX, info);
if (err)
return err;
- ctx->txq_idx = i++;
}
return err;
@@ -671,7 +668,7 @@ netdev_nl_stats_by_queue(struct net_device *netdev, struct sk_buff *rsp,
i, info);
if (err)
return err;
- ctx->rxq_idx = i++;
+ ctx->rxq_idx = ++i;
}
i = ctx->txq_idx;
while (ops->get_queue_stats_tx && i < netdev->real_num_tx_queues) {
@@ -679,7 +676,7 @@ netdev_nl_stats_by_queue(struct net_device *netdev, struct sk_buff *rsp,
i, info);
if (err)
return err;
- ctx->txq_idx = i++;
+ ctx->txq_idx = ++i;
}
ctx->rxq_idx = 0;
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index ebcfc2debf1a..d9f959c619d9 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -3819,6 +3819,7 @@ out_unregister:
}
static struct net *rtnl_get_peer_net(const struct rtnl_link_ops *ops,
+ struct nlattr *tbp[],
struct nlattr *data[],
struct netlink_ext_ack *extack)
{
@@ -3826,7 +3827,7 @@ static struct net *rtnl_get_peer_net(const struct rtnl_link_ops *ops,
int err;
if (!data || !data[ops->peer_type])
- return NULL;
+ return rtnl_link_get_net_ifla(tbp);
err = rtnl_nla_parse_ifinfomsg(tb, data[ops->peer_type], extack);
if (err < 0)
@@ -3971,7 +3972,7 @@ static int rtnl_newlink(struct sk_buff *skb, struct nlmsghdr *nlh,
}
if (ops->peer_type) {
- peer_net = rtnl_get_peer_net(ops, data, extack);
+ peer_net = rtnl_get_peer_net(ops, tb, data, extack);
if (IS_ERR(peer_net)) {
ret = PTR_ERR(peer_net);
goto put_ops;
diff --git a/net/core/skmsg.c b/net/core/skmsg.c
index e90fbab703b2..61f3f3d4e528 100644
--- a/net/core/skmsg.c
+++ b/net/core/skmsg.c
@@ -369,8 +369,8 @@ int sk_msg_memcopy_from_iter(struct sock *sk, struct iov_iter *from,
struct sk_msg *msg, u32 bytes)
{
int ret = -ENOSPC, i = msg->sg.curr;
+ u32 copy, buf_size, copied = 0;
struct scatterlist *sge;
- u32 copy, buf_size;
void *to;
do {
@@ -397,6 +397,7 @@ int sk_msg_memcopy_from_iter(struct sock *sk, struct iov_iter *from,
goto out;
}
bytes -= copy;
+ copied += copy;
if (!bytes)
break;
msg->sg.copybreak = 0;
@@ -404,7 +405,7 @@ int sk_msg_memcopy_from_iter(struct sock *sk, struct iov_iter *from,
} while (i != msg->sg.end);
out:
msg->sg.curr = i;
- return ret;
+ return (ret < 0) ? ret : copied;
}
EXPORT_SYMBOL_GPL(sk_msg_memcopy_from_iter);
@@ -445,8 +446,10 @@ int sk_msg_recvmsg(struct sock *sk, struct sk_psock *psock, struct msghdr *msg,
if (likely(!peek)) {
sge->offset += copy;
sge->length -= copy;
- if (!msg_rx->skb)
+ if (!msg_rx->skb) {
sk_mem_uncharge(sk, copy);
+ atomic_sub(copy, &sk->sk_rmem_alloc);
+ }
msg_rx->sg.size -= copy;
if (!sge->length) {
@@ -772,6 +775,8 @@ static void __sk_psock_purge_ingress_msg(struct sk_psock *psock)
list_for_each_entry_safe(msg, tmp, &psock->ingress_msg, list) {
list_del(&msg->list);
+ if (!msg->skb)
+ atomic_sub(msg->sg.size, &psock->sk->sk_rmem_alloc);
sk_msg_free(psock->sk, msg);
kfree(msg);
}
generated by cgit (git 2.34.1) at 2025-05-23 00:00:46 +0000