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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-07-18 16:55:52 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-07-18 16:55:52 +0200
commit93467b31bec6da512b51544e5e4584f2745e995e (patch)
tree2ea2be38c5e4dc9aafffbbc0db5aae0f6513a1d9 /net/tipc/node.c
parent8ca1f4c6fb1462ee120730ea75c19da10d2f2d6f (diff)
parent7a5cef0db4795d9d453a12e0f61b5b7634fc4d40 (diff)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/tipc/node.c')
-rw-r--r--net/tipc/node.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/net/tipc/node.c b/net/tipc/node.c
index 97aa970a0d83..8e4ef2630ae4 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -1831,12 +1831,15 @@ static void tipc_node_mcast_rcv(struct tipc_node *n)
}
static void tipc_node_bc_sync_rcv(struct tipc_node *n, struct tipc_msg *hdr,
- int bearer_id, struct sk_buff_head *xmitq)
+ int bearer_id, struct sk_buff_head *xmitq,
+ bool *valid)
{
struct tipc_link *ucl;
int rc;
- rc = tipc_bcast_sync_rcv(n->net, n->bc_entry.link, hdr, xmitq);
+ rc = tipc_bcast_sync_rcv(n->net, n->bc_entry.link, hdr, xmitq, valid);
+ if (!*valid)
+ return;
if (rc & TIPC_LINK_DOWN_EVT) {
tipc_node_reset_links(n);
@@ -2140,12 +2143,18 @@ rcv:
/* Ensure broadcast reception is in synch with peer's send state */
if (unlikely(usr == LINK_PROTOCOL)) {
+ bool valid = true;
+
if (unlikely(skb_linearize(skb))) {
tipc_node_put(n);
goto discard;
}
hdr = buf_msg(skb);
- tipc_node_bc_sync_rcv(n, hdr, bearer_id, &xmitq);
+ tipc_node_bc_sync_rcv(n, hdr, bearer_id, &xmitq, &valid);
+ if (!valid) {
+ tipc_node_put(n);
+ goto discard;
+ }
} else if (unlikely(tipc_link_acked(n->bc_entry.link) != bc_ack)) {
tipc_bcast_ack_rcv(net, n->bc_entry.link, hdr);
}