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-rw-r--r--net/can/bcm.c3
-rw-r--r--net/core/dev.c2
-rw-r--r--net/core/skbuff.c6
-rw-r--r--net/ipv4/icmp.c3
-rw-r--r--net/ipv4/inet_diag.c154
-rw-r--r--net/ipv4/ip_fragment.c19
-rw-r--r--net/ipv4/ipmr.c4
-rw-r--r--net/ipv4/tcp.c15
-rw-r--r--net/ipv4/tcp_input.c6
-rw-r--r--net/ipv4/tcp_output.c15
-rw-r--r--net/irda/irttp.c1
-rw-r--r--net/mac80211/offchannel.c2
-rw-r--r--net/netfilter/ipset/ip_set_hash_netiface.c2
-rw-r--r--net/openvswitch/flow.c14
-rw-r--r--net/openvswitch/vport-netdev.c2
-rw-r--r--net/sctp/chunk.c20
-rw-r--r--net/sctp/socket.c4
-rw-r--r--net/sctp/transport.c2
18 files changed, 191 insertions, 83 deletions
diff --git a/net/can/bcm.c b/net/can/bcm.c
index 6f747582718..969b7cdff59 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -1084,6 +1084,9 @@ static int bcm_rx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg,
op->sk = sk;
op->ifindex = ifindex;
+ /* ifindex for timeout events w/o previous frame reception */
+ op->rx_ifindex = ifindex;
+
/* initialize uninitialized (kzalloc) structure */
hrtimer_init(&op->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
op->timer.function = bcm_rx_timeout_handler;
diff --git a/net/core/dev.c b/net/core/dev.c
index c0946cb2b35..e5942bf45a6 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3451,6 +3451,8 @@ static int napi_gro_complete(struct sk_buff *skb)
struct list_head *head = &ptype_base[ntohs(type) & PTYPE_HASH_MASK];
int err = -ENOENT;
+ BUILD_BUG_ON(sizeof(struct napi_gro_cb) > sizeof(skb->cb));
+
if (NAPI_GRO_CB(skb)->count == 1) {
skb_shinfo(skb)->gso_size = 0;
goto out;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 4007c1437fd..3f0636cd76c 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3004,7 +3004,7 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
skb_shinfo(nskb)->gso_size = pinfo->gso_size;
pinfo->gso_size = 0;
skb_header_release(p);
- nskb->prev = p;
+ NAPI_GRO_CB(nskb)->last = p;
nskb->data_len += p->len;
nskb->truesize += p->truesize;
@@ -3030,8 +3030,8 @@ merge:
__skb_pull(skb, offset);
- p->prev->next = skb;
- p->prev = skb;
+ NAPI_GRO_CB(p)->last->next = skb;
+ NAPI_GRO_CB(p)->last = skb;
skb_header_release(skb);
done:
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index f2eccd53174..17ff9fd7cdd 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -257,7 +257,8 @@ static inline bool icmpv4_xrlim_allow(struct net *net, struct rtable *rt,
struct inet_peer *peer = inet_getpeer_v4(net->ipv4.peers, fl4->daddr, 1);
rc = inet_peer_xrlim_allow(peer,
net->ipv4.sysctl_icmp_ratelimit);
- inet_putpeer(peer);
+ if (peer)
+ inet_putpeer(peer);
}
out:
return rc;
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 0c34bfabc11..e23e16dc501 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -44,6 +44,10 @@ struct inet_diag_entry {
u16 dport;
u16 family;
u16 userlocks;
+#if IS_ENABLED(CONFIG_IPV6)
+ struct in6_addr saddr_storage; /* for IPv4-mapped-IPv6 addresses */
+ struct in6_addr daddr_storage; /* for IPv4-mapped-IPv6 addresses */
+#endif
};
static DEFINE_MUTEX(inet_diag_table_mutex);
@@ -428,25 +432,31 @@ static int inet_diag_bc_run(const struct nlattr *_bc,
break;
}
- if (cond->prefix_len == 0)
- break;
-
if (op->code == INET_DIAG_BC_S_COND)
addr = entry->saddr;
else
addr = entry->daddr;
+ if (cond->family != AF_UNSPEC &&
+ cond->family != entry->family) {
+ if (entry->family == AF_INET6 &&
+ cond->family == AF_INET) {
+ if (addr[0] == 0 && addr[1] == 0 &&
+ addr[2] == htonl(0xffff) &&
+ bitstring_match(addr + 3,
+ cond->addr,
+ cond->prefix_len))
+ break;
+ }
+ yes = 0;
+ break;
+ }
+
+ if (cond->prefix_len == 0)
+ break;
if (bitstring_match(addr, cond->addr,
cond->prefix_len))
break;
- if (entry->family == AF_INET6 &&
- cond->family == AF_INET) {
- if (addr[0] == 0 && addr[1] == 0 &&
- addr[2] == htonl(0xffff) &&
- bitstring_match(addr + 3, cond->addr,
- cond->prefix_len))
- break;
- }
yes = 0;
break;
}
@@ -509,6 +519,55 @@ static int valid_cc(const void *bc, int len, int cc)
return 0;
}
+/* Validate an inet_diag_hostcond. */
+static bool valid_hostcond(const struct inet_diag_bc_op *op, int len,
+ int *min_len)
+{
+ int addr_len;
+ struct inet_diag_hostcond *cond;
+
+ /* Check hostcond space. */
+ *min_len += sizeof(struct inet_diag_hostcond);
+ if (len < *min_len)
+ return false;
+ cond = (struct inet_diag_hostcond *)(op + 1);
+
+ /* Check address family and address length. */
+ switch (cond->family) {
+ case AF_UNSPEC:
+ addr_len = 0;
+ break;
+ case AF_INET:
+ addr_len = sizeof(struct in_addr);
+ break;
+ case AF_INET6:
+ addr_len = sizeof(struct in6_addr);
+ break;
+ default:
+ return false;
+ }
+ *min_len += addr_len;
+ if (len < *min_len)
+ return false;
+
+ /* Check prefix length (in bits) vs address length (in bytes). */
+ if (cond->prefix_len > 8 * addr_len)
+ return false;
+
+ return true;
+}
+
+/* Validate a port comparison operator. */
+static inline bool valid_port_comparison(const struct inet_diag_bc_op *op,
+ int len, int *min_len)
+{
+ /* Port comparisons put the port in a follow-on inet_diag_bc_op. */
+ *min_len += sizeof(struct inet_diag_bc_op);
+ if (len < *min_len)
+ return false;
+ return true;
+}
+
static int inet_diag_bc_audit(const void *bytecode, int bytecode_len)
{
const void *bc = bytecode;
@@ -516,29 +575,39 @@ static int inet_diag_bc_audit(const void *bytecode, int bytecode_len)
while (len > 0) {
const struct inet_diag_bc_op *op = bc;
+ int min_len = sizeof(struct inet_diag_bc_op);
//printk("BC: %d %d %d {%d} / %d\n", op->code, op->yes, op->no, op[1].no, len);
switch (op->code) {
- case INET_DIAG_BC_AUTO:
case INET_DIAG_BC_S_COND:
case INET_DIAG_BC_D_COND:
+ if (!valid_hostcond(bc, len, &min_len))
+ return -EINVAL;
+ break;
case INET_DIAG_BC_S_GE:
case INET_DIAG_BC_S_LE:
case INET_DIAG_BC_D_GE:
case INET_DIAG_BC_D_LE:
- case INET_DIAG_BC_JMP:
- if (op->no < 4 || op->no > len + 4 || op->no & 3)
- return -EINVAL;
- if (op->no < len &&
- !valid_cc(bytecode, bytecode_len, len - op->no))
+ if (!valid_port_comparison(bc, len, &min_len))
return -EINVAL;
break;
+ case INET_DIAG_BC_AUTO:
+ case INET_DIAG_BC_JMP:
case INET_DIAG_BC_NOP:
break;
default:
return -EINVAL;
}
- if (op->yes < 4 || op->yes > len + 4 || op->yes & 3)
+
+ if (op->code != INET_DIAG_BC_NOP) {
+ if (op->no < min_len || op->no > len + 4 || op->no & 3)
+ return -EINVAL;
+ if (op->no < len &&
+ !valid_cc(bytecode, bytecode_len, len - op->no))
+ return -EINVAL;
+ }
+
+ if (op->yes < min_len || op->yes > len + 4 || op->yes & 3)
return -EINVAL;
bc += op->yes;
len -= op->yes;
@@ -596,6 +665,36 @@ static int inet_twsk_diag_dump(struct inet_timewait_sock *tw,
cb->nlh->nlmsg_seq, NLM_F_MULTI, cb->nlh);
}
+/* Get the IPv4, IPv6, or IPv4-mapped-IPv6 local and remote addresses
+ * from a request_sock. For IPv4-mapped-IPv6 we must map IPv4 to IPv6.
+ */
+static inline void inet_diag_req_addrs(const struct sock *sk,
+ const struct request_sock *req,
+ struct inet_diag_entry *entry)
+{
+ struct inet_request_sock *ireq = inet_rsk(req);
+
+#if IS_ENABLED(CONFIG_IPV6)
+ if (sk->sk_family == AF_INET6) {
+ if (req->rsk_ops->family == AF_INET6) {
+ entry->saddr = inet6_rsk(req)->loc_addr.s6_addr32;
+ entry->daddr = inet6_rsk(req)->rmt_addr.s6_addr32;
+ } else if (req->rsk_ops->family == AF_INET) {
+ ipv6_addr_set_v4mapped(ireq->loc_addr,
+ &entry->saddr_storage);
+ ipv6_addr_set_v4mapped(ireq->rmt_addr,
+ &entry->daddr_storage);
+ entry->saddr = entry->saddr_storage.s6_addr32;
+ entry->daddr = entry->daddr_storage.s6_addr32;
+ }
+ } else
+#endif
+ {
+ entry->saddr = &ireq->loc_addr;
+ entry->daddr = &ireq->rmt_addr;
+ }
+}
+
static int inet_diag_fill_req(struct sk_buff *skb, struct sock *sk,
struct request_sock *req,
struct user_namespace *user_ns,
@@ -637,8 +736,10 @@ static int inet_diag_fill_req(struct sk_buff *skb, struct sock *sk,
r->idiag_inode = 0;
#if IS_ENABLED(CONFIG_IPV6)
if (r->idiag_family == AF_INET6) {
- *(struct in6_addr *)r->id.idiag_src = inet6_rsk(req)->loc_addr;
- *(struct in6_addr *)r->id.idiag_dst = inet6_rsk(req)->rmt_addr;
+ struct inet_diag_entry entry;
+ inet_diag_req_addrs(sk, req, &entry);
+ memcpy(r->id.idiag_src, entry.saddr, sizeof(struct in6_addr));
+ memcpy(r->id.idiag_dst, entry.daddr, sizeof(struct in6_addr));
}
#endif
@@ -691,18 +792,7 @@ static int inet_diag_dump_reqs(struct sk_buff *skb, struct sock *sk,
continue;
if (bc) {
- entry.saddr =
-#if IS_ENABLED(CONFIG_IPV6)
- (entry.family == AF_INET6) ?
- inet6_rsk(req)->loc_addr.s6_addr32 :
-#endif
- &ireq->loc_addr;
- entry.daddr =
-#if IS_ENABLED(CONFIG_IPV6)
- (entry.family == AF_INET6) ?
- inet6_rsk(req)->rmt_addr.s6_addr32 :
-#endif
- &ireq->rmt_addr;
+ inet_diag_req_addrs(sk, req, &entry);
entry.dport = ntohs(ireq->rmt_port);
if (!inet_diag_bc_run(bc, &entry))
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 448e6854682..8d5cc75dac8 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -707,28 +707,27 @@ EXPORT_SYMBOL(ip_defrag);
struct sk_buff *ip_check_defrag(struct sk_buff *skb, u32 user)
{
- const struct iphdr *iph;
+ struct iphdr iph;
u32 len;
if (skb->protocol != htons(ETH_P_IP))
return skb;
- if (!pskb_may_pull(skb, sizeof(struct iphdr)))
+ if (!skb_copy_bits(skb, 0, &iph, sizeof(iph)))
return skb;
- iph = ip_hdr(skb);
- if (iph->ihl < 5 || iph->version != 4)
+ if (iph.ihl < 5 || iph.version != 4)
return skb;
- if (!pskb_may_pull(skb, iph->ihl*4))
- return skb;
- iph = ip_hdr(skb);
- len = ntohs(iph->tot_len);
- if (skb->len < len || len < (iph->ihl * 4))
+
+ len = ntohs(iph.tot_len);
+ if (skb->len < len || len < (iph.ihl * 4))
return skb;
- if (ip_is_fragment(ip_hdr(skb))) {
+ if (ip_is_fragment(&iph)) {
skb = skb_share_check(skb, GFP_ATOMIC);
if (skb) {
+ if (!pskb_may_pull(skb, iph.ihl*4))
+ return skb;
if (pskb_trim_rcsum(skb, len))
return skb;
memset(IPCB(skb), 0, sizeof(struct inet_skb_parm));
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 6168c4dc58b..3eab2b2ffd3 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -1318,6 +1318,10 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, unsi
if (get_user(v, (u32 __user *)optval))
return -EFAULT;
+ /* "pimreg%u" should not exceed 16 bytes (IFNAMSIZ) */
+ if (v != RT_TABLE_DEFAULT && v >= 1000000000)
+ return -EINVAL;
+
rtnl_lock();
ret = 0;
if (sk == rtnl_dereference(mrt->mroute_sk)) {
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 083092e3aed..e457c7ab2e2 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -830,8 +830,8 @@ static int tcp_send_mss(struct sock *sk, int *size_goal, int flags)
return mss_now;
}
-static ssize_t do_tcp_sendpages(struct sock *sk, struct page **pages, int poffset,
- size_t psize, int flags)
+static ssize_t do_tcp_sendpages(struct sock *sk, struct page *page, int offset,
+ size_t size, int flags)
{
struct tcp_sock *tp = tcp_sk(sk);
int mss_now, size_goal;
@@ -858,12 +858,9 @@ static ssize_t do_tcp_sendpages(struct sock *sk, struct page **pages, int poffse
if (sk->sk_err || (sk->sk_shutdown & SEND_SHUTDOWN))
goto out_err;
- while (psize > 0) {
+ while (size > 0) {
struct sk_buff *skb = tcp_write_queue_tail(sk);
- struct page *page = pages[poffset / PAGE_SIZE];
int copy, i;
- int offset = poffset % PAGE_SIZE;
- int size = min_t(size_t, psize, PAGE_SIZE - offset);
bool can_coalesce;
if (!tcp_send_head(sk) || (copy = size_goal - skb->len) <= 0) {
@@ -912,8 +909,8 @@ new_segment:
TCP_SKB_CB(skb)->tcp_flags &= ~TCPHDR_PSH;
copied += copy;
- poffset += copy;
- if (!(psize -= copy))
+ offset += copy;
+ if (!(size -= copy))
goto out;
if (skb->len < size_goal || (flags & MSG_OOB))
@@ -960,7 +957,7 @@ int tcp_sendpage(struct sock *sk, struct page *page, int offset,
flags);
lock_sock(sk);
- res = do_tcp_sendpages(sk, &page, offset, size, flags);
+ res = do_tcp_sendpages(sk, page, offset, size, flags);
release_sock(sk);
return res;
}
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 609ff98aeb4..181fc8234a5 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5645,7 +5645,11 @@ static bool tcp_rcv_fastopen_synack(struct sock *sk, struct sk_buff *synack,
tcp_fastopen_cache_set(sk, mss, cookie, syn_drop);
if (data) { /* Retransmit unacked data in SYN */
- tcp_retransmit_skb(sk, data);
+ tcp_for_write_queue_from(data, sk) {
+ if (data == tcp_send_head(sk) ||
+ __tcp_retransmit_skb(sk, data))
+ break;
+ }
tcp_rearm_rto(sk);
return true;
}
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 2798706cb06..948ac275b9b 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2309,12 +2309,11 @@ static void tcp_retrans_try_collapse(struct sock *sk, struct sk_buff *to,
* state updates are done by the caller. Returns non-zero if an
* error occurred which prevented the send.
*/
-int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
+int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
{
struct tcp_sock *tp = tcp_sk(sk);
struct inet_connection_sock *icsk = inet_csk(sk);
unsigned int cur_mss;
- int err;
/* Inconslusive MTU probe */
if (icsk->icsk_mtup.probe_size) {
@@ -2387,11 +2386,17 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
if (unlikely(NET_IP_ALIGN && ((unsigned long)skb->data & 3))) {
struct sk_buff *nskb = __pskb_copy(skb, MAX_TCP_HEADER,
GFP_ATOMIC);
- err = nskb ? tcp_transmit_skb(sk, nskb, 0, GFP_ATOMIC) :
- -ENOBUFS;
+ return nskb ? tcp_transmit_skb(sk, nskb, 0, GFP_ATOMIC) :
+ -ENOBUFS;
} else {
- err = tcp_transmit_skb(sk, skb, 1, GFP_ATOMIC);
+ return tcp_transmit_skb(sk, skb, 1, GFP_ATOMIC);
}
+}
+
+int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
+{
+ struct tcp_sock *tp = tcp_sk(sk);
+ int err = __tcp_retransmit_skb(sk, skb);
if (err == 0) {
/* Update global TCP statistics. */
diff --git a/net/irda/irttp.c b/net/irda/irttp.c
index 1002e3396f7..ae43c62f904 100644
--- a/net/irda/irttp.c
+++ b/net/irda/irttp.c
@@ -441,6 +441,7 @@ struct tsap_cb *irttp_open_tsap(__u8 stsap_sel, int credit, notify_t *notify)
lsap = irlmp_open_lsap(stsap_sel, &ttp_notify, 0);
if (lsap == NULL) {
IRDA_DEBUG(0, "%s: unable to allocate LSAP!!\n", __func__);
+ __irttp_close_tsap(self);
return NULL;
}
diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index 83608ac1678..2c84185dfdb 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -458,8 +458,6 @@ void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata)
list_move_tail(&roc->list, &tmp_list);
roc->abort = true;
}
-
- ieee80211_start_next_roc(local);
mutex_unlock(&local->mtx);
list_for_each_entry_safe(roc, tmp, &tmp_list, list) {
diff --git a/net/netfilter/ipset/ip_set_hash_netiface.c b/net/netfilter/ipset/ip_set_hash_netiface.c
index b9a63381e34..45a101439bc 100644
--- a/net/netfilter/ipset/ip_set_hash_netiface.c
+++ b/net/netfilter/ipset/ip_set_hash_netiface.c
@@ -793,7 +793,7 @@ static struct ip_set_type hash_netiface_type __read_mostly = {
[IPSET_ATTR_IP] = { .type = NLA_NESTED },
[IPSET_ATTR_IP_TO] = { .type = NLA_NESTED },
[IPSET_ATTR_IFACE] = { .type = NLA_NUL_STRING,
- .len = IPSET_MAXNAMELEN - 1 },
+ .len = IFNAMSIZ - 1 },
[IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
[IPSET_ATTR_CIDR] = { .type = NLA_U8 },
[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index 98c70630ad0..733cbf49ed1 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -702,15 +702,11 @@ int ovs_flow_extract(struct sk_buff *skb, u16 in_port, struct sw_flow_key *key,
/* We only match on the lower 8 bits of the opcode. */
if (ntohs(arp->ar_op) <= 0xff)
key->ip.proto = ntohs(arp->ar_op);
-
- if (key->ip.proto == ARPOP_REQUEST
- || key->ip.proto == ARPOP_REPLY) {
- memcpy(&key->ipv4.addr.src, arp->ar_sip, sizeof(key->ipv4.addr.src));
- memcpy(&key->ipv4.addr.dst, arp->ar_tip, sizeof(key->ipv4.addr.dst));
- memcpy(key->ipv4.arp.sha, arp->ar_sha, ETH_ALEN);
- memcpy(key->ipv4.arp.tha, arp->ar_tha, ETH_ALEN);
- key_len = SW_FLOW_KEY_OFFSET(ipv4.arp);
- }
+ memcpy(&key->ipv4.addr.src, arp->ar_sip, sizeof(key->ipv4.addr.src));
+ memcpy(&key->ipv4.addr.dst, arp->ar_tip, sizeof(key->ipv4.addr.dst));
+ memcpy(key->ipv4.arp.sha, arp->ar_sha, ETH_ALEN);
+ memcpy(key->ipv4.arp.tha, arp->ar_tha, ETH_ALEN);
+ key_len = SW_FLOW_KEY_OFFSET(ipv4.arp);
}
} else if (key->eth.type == htons(ETH_P_IPV6)) {
int nh_len; /* IPv6 Header + Extensions */
diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index 3c1e58ba714..a9033481fa5 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -158,7 +158,7 @@ static int netdev_send(struct vport *vport, struct sk_buff *skb)
if (unlikely(packet_length(skb) > mtu && !skb_is_gso(skb))) {
net_warn_ratelimited("%s: dropped over-mtu packet: %d > %d\n",
- ovs_dp_name(vport->dp),
+ netdev_vport->dev->name,
packet_length(skb), mtu);
goto error;
}
diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c
index 7c2df9c33df..69ce21e3716 100644
--- a/net/sctp/chunk.c
+++ b/net/sctp/chunk.c
@@ -183,7 +183,7 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
msg = sctp_datamsg_new(GFP_KERNEL);
if (!msg)
- return NULL;
+ return ERR_PTR(-ENOMEM);
/* Note: Calculate this outside of the loop, so that all fragments
* have the same expiration.
@@ -280,11 +280,14 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
chunk = sctp_make_datafrag_empty(asoc, sinfo, len, frag, 0);
- if (!chunk)
+ if (!chunk) {
+ err = -ENOMEM;
goto errout;
+ }
+
err = sctp_user_addto_chunk(chunk, offset, len, msgh->msg_iov);
if (err < 0)
- goto errout;
+ goto errout_chunk_free;
offset += len;
@@ -315,8 +318,10 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
chunk = sctp_make_datafrag_empty(asoc, sinfo, over, frag, 0);
- if (!chunk)
+ if (!chunk) {
+ err = -ENOMEM;
goto errout;
+ }
err = sctp_user_addto_chunk(chunk, offset, over,msgh->msg_iov);
@@ -324,7 +329,7 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
__skb_pull(chunk->skb, (__u8 *)chunk->chunk_hdr
- (__u8 *)chunk->skb->data);
if (err < 0)
- goto errout;
+ goto errout_chunk_free;
sctp_datamsg_assign(msg, chunk);
list_add_tail(&chunk->frag_list, &msg->chunks);
@@ -332,6 +337,9 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
return msg;
+errout_chunk_free:
+ sctp_chunk_free(chunk);
+
errout:
list_for_each_safe(pos, temp, &msg->chunks) {
list_del_init(pos);
@@ -339,7 +347,7 @@ errout:
sctp_chunk_free(chunk);
}
sctp_datamsg_put(msg);
- return NULL;
+ return ERR_PTR(err);
}
/* Check whether this message has expired. */
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index a60d1f8b41c..406d957d08f 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1915,8 +1915,8 @@ SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
/* Break the message into multiple chunks of maximum size. */
datamsg = sctp_datamsg_from_user(asoc, sinfo, msg, msg_len);
- if (!datamsg) {
- err = -ENOMEM;
+ if (IS_ERR(datamsg)) {
+ err = PTR_ERR(datamsg);
goto out_free;
}
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index 953c21e4af9..206cf5238fd 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -331,7 +331,7 @@ void sctp_transport_update_rto(struct sctp_transport *tp, __u32 rtt)
* 1/8, rto_alpha would be expressed as 3.
*/
tp->rttvar = tp->rttvar - (tp->rttvar >> net->sctp.rto_beta)
- + ((abs(tp->srtt - rtt)) >> net->sctp.rto_beta);
+ + (((__u32)abs64((__s64)tp->srtt - (__s64)rtt)) >> net->sctp.rto_beta);
tp->srtt = tp->srtt - (tp->srtt >> net->sctp.rto_alpha)
+ (rtt >> net->sctp.rto_alpha);
} else {
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-30 16:21:13 +0000