From 5a5fac9966bb6d513198634b0b1357be7e8447d2 Mon Sep 17 00:00:00 2001 From: Ayush Sawal Date: Wed, 6 Jan 2021 09:59:08 +0530 Subject: [PATCH] chtls: Fix panic when route to peer not configured If route to peer is not configured, we might get non tls devices from dst_neigh_lookup() which is invalid, adding a check to avoid it. Fixes: cc35c88ae4db ("crypto : chtls - CPL handler definition") Signed-off-by: Rohit Maheshwari Signed-off-by: Ayush Sawal Signed-off-by: Jakub Kicinski --- .../net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c index 431d1e3..04a8bd5 100644 --- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c +++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c @@ -1109,6 +1109,7 @@ static struct sock *chtls_recv_sock(struct sock *lsk, const struct cpl_pass_accept_req *req, struct chtls_dev *cdev) { + struct adapter *adap = pci_get_drvdata(cdev->pdev); struct neighbour *n = NULL; struct inet_sock *newinet; const struct iphdr *iph; @@ -1118,9 +1119,10 @@ static struct sock *chtls_recv_sock(struct sock *lsk, struct dst_entry *dst; struct tcp_sock *tp; struct sock *newsk; + bool found = false; u16 port_id; int rxq_idx; - int step; + int step, i; iph = (const struct iphdr *)network_hdr; newsk = tcp_create_openreq_child(lsk, oreq, cdev->askb); @@ -1152,7 +1154,7 @@ static struct sock *chtls_recv_sock(struct sock *lsk, n = dst_neigh_lookup(dst, &ip6h->saddr); #endif } - if (!n) + if (!n || !n->dev) goto free_sk; ndev = n->dev; @@ -1161,6 +1163,13 @@ static struct sock *chtls_recv_sock(struct sock *lsk, if (is_vlan_dev(ndev)) ndev = vlan_dev_real_dev(ndev); + for_each_port(adap, i) + if (cdev->ports[i] == ndev) + found = true; + + if (!found) + goto free_dst; + port_id = cxgb4_port_idx(ndev); csk = chtls_sock_create(cdev); @@ -1238,6 +1247,7 @@ static struct sock *chtls_recv_sock(struct sock *lsk, free_csk: chtls_sock_release(&csk->kref); free_dst: + neigh_release(n); dst_release(dst); free_sk: inet_csk_prepare_forced_close(newsk); -- 2.7.4