From b6321146773dcbbc372a54dbada67e0b50e0a25c Mon Sep 17 00:00:00 2001 From: Wang Hai Date: Mon, 14 Oct 2024 22:51:15 +0800 Subject: [PATCH] net: systemport: fix potential memory leak in bcm_sysport_xmit() [ Upstream commit c401ed1c709948e57945485088413e1bb5e94bd1 ] The bcm_sysport_xmit() returns NETDEV_TX_OK without freeing skb in case of dma_map_single() fails, add dev_kfree_skb() to fix it. Fixes: 80105befdb4b ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver") Signed-off-by: Wang Hai Link: https://patch.msgid.link/20241014145115.44977-1-wanghai38@huawei.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/ethernet/broadcom/bcmsysport.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c index 82d369d9f7a5..ae1cf2ead9a9 100644 --- a/drivers/net/ethernet/broadcom/bcmsysport.c +++ b/drivers/net/ethernet/broadcom/bcmsysport.c @@ -1343,6 +1343,7 @@ static netdev_tx_t bcm_sysport_xmit(struct sk_buff *skb, netif_err(priv, tx_err, dev, "DMA map failed at %p (len=%d)\n", skb->data, skb_len); ret = NETDEV_TX_OK; + dev_kfree_skb_any(skb); goto out; }