diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0096-sdk_dpaa-guard-against-an-out-of-bounds-queue-index.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0096-sdk_dpaa-guard-against-an-out-of-bounds-queue-index.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0096-sdk_dpaa-guard-against-an-out-of-bounds-queue-index.patch b/target/linux/layerscape/patches-5.4/701-net-0096-sdk_dpaa-guard-against-an-out-of-bounds-queue-index.patch new file mode 100644 index 0000000000..9616177009 --- /dev/null +++ b/target/linux/layerscape/patches-5.4/701-net-0096-sdk_dpaa-guard-against-an-out-of-bounds-queue-index.patch @@ -0,0 +1,34 @@ +From 56203e34ec05e39a088036b5d9db7fde7a7af742 Mon Sep 17 00:00:00 2001 +From: Camelia Groza <camelia.groza@nxp.com> +Date: Tue, 30 Oct 2018 18:18:30 +0200 +Subject: [PATCH] sdk_dpaa: guard against an out of bounds queue index + +Make sure the queue mapping recorded in the skb is not larger than our +egress queue count. + +Signed-off-by: Camelia Groza <camelia.groza@nxp.com> +--- + drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +--- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c ++++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c +@@ -1035,7 +1035,7 @@ EXPORT_SYMBOL(skb_to_sg_fd); + int __hot dpa_tx(struct sk_buff *skb, struct net_device *net_dev) + { + struct dpa_priv_s *priv; +- const int queue_mapping = dpa_get_queue_mapping(skb); ++ int queue_mapping = dpa_get_queue_mapping(skb); + struct qman_fq *egress_fq, *conf_fq; + + #ifdef CONFIG_FSL_DPAA_HOOKS +@@ -1053,6 +1053,9 @@ int __hot dpa_tx(struct sk_buff *skb, st + return ceetm_tx(skb, net_dev); + #endif + ++ if (unlikely(queue_mapping >= DPAA_ETH_TX_QUEUES)) ++ queue_mapping = queue_mapping % DPAA_ETH_TX_QUEUES; ++ + egress_fq = priv->egress_fqs[queue_mapping]; + conf_fq = priv->conf_fqs[queue_mapping]; + |