5.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Wang Hai <wanghai38@xxxxxxxxxx>
[ Upstream commit cf57b5d7a2aad456719152ecd12007fe031628a3 ]
The greth_start_xmit_gbit() returns NETDEV_TX_OK without freeing skb
in case of skb->len being too long, add dev_kfree_skb() to fix it.
Fixes: d4c41139df6e ("net: Add Aeroflex Gaisler 10/100/1G Ethernet MAC driver")
Signed-off-by: Wang Hai <wanghai38@xxxxxxxxxx>
Reviewed-by: Gerhard Engleder <gerhard@xxxxxxxxxxxxxxxxxxxxx>
Link: https://patch.msgid.link/20241012110434.49265-1-wanghai38@xxxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/aeroflex/greth.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/aeroflex/greth.c b/drivers/net/ethernet/aeroflex/greth.c
index 19e2b838750cb..9e437aebc7907 100644
--- a/drivers/net/ethernet/aeroflex/greth.c
+++ b/drivers/net/ethernet/aeroflex/greth.c
@@ -484,7 +484,7 @@ greth_start_xmit_gbit(struct sk_buff *skb, struct net_device *dev)
if (unlikely(skb->len > MAX_FRAME_SIZE)) {
dev->stats.tx_errors++;
- goto out;
+ goto len_error;
}
/* Save skb pointer. */
@@ -575,6 +575,7 @@ greth_start_xmit_gbit(struct sk_buff *skb, struct net_device *dev)
map_error:
if (net_ratelimit())
dev_warn(greth->dev, "Could not create TX DMA mapping\n");
+len_error:
dev_kfree_skb(skb);
out:
return err;
--
2.43.0
