From: Zhang Changzhong Date: Sun, 4 Dec 2022 06:09:08 +0000 (+0800) Subject: ethernet: aeroflex: fix potential skb leak in greth_init_rings() X-Git-Tag: v4.9.336~4 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=223654e2e2c8d05347cd8e300f8d1ec6023103dd;p=thirdparty%2Fkernel%2Fstable.git ethernet: aeroflex: fix potential skb leak in greth_init_rings() [ Upstream commit 063a932b64db3317ec020c94466fe52923a15f60 ] The greth_init_rings() function won't free the newly allocated skb when dma_mapping_error() returns error, so add dev_kfree_skb() to fix it. Compile tested only. Fixes: d4c41139df6e ("net: Add Aeroflex Gaisler 10/100/1G Ethernet MAC driver") Signed-off-by: Zhang Changzhong Reviewed-by: Leon Romanovsky Link: https://lore.kernel.org/r/1670134149-29516-1-git-send-email-zhangchangzhong@huawei.com Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin --- diff --git a/drivers/net/ethernet/aeroflex/greth.c b/drivers/net/ethernet/aeroflex/greth.c index 31e02ca56572a..aa2d1b088df63 100644 --- a/drivers/net/ethernet/aeroflex/greth.c +++ b/drivers/net/ethernet/aeroflex/greth.c @@ -261,6 +261,7 @@ static int greth_init_rings(struct greth_private *greth) if (dma_mapping_error(greth->dev, dma_addr)) { if (netif_msg_ifup(greth)) dev_err(greth->dev, "Could not create initial DMA mapping\n"); + dev_kfree_skb(skb); goto cleanup; } greth->rx_skbuff[i] = skb;