Commit 81c24024 authored Jul 06, 2020 by Rohith Kollalsi Committed by Gerrit - the friendly Code Review server Jul 25, 2020

usb: u_ether: Add null pointer check for sk_buff in eth_start_xmit

There is a possibility of null pointer dereference for sk_buff in
the function eth_start_xmit. Fix this by removing sk_buff from if
check at the start of the function eth_start_xmit so that if sk_buff
is null dev_kfree_skb_any will return without proceeding further.

Change-Id: I105e42c59aaa83c8d74cc5a9e894ae4fc87c3c9f
Signed-off-by: Rohith Kollalsi <rkollals@codeaurora.org>

parent 9e73b22a

drivers/usb/gadget/function/u_ether.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -495,7 +495,7 @@ static netdev_tx_t eth_start_xmit(struct sk_buff *skb,
		}
		spin_unlock_irqrestore(&dev->lock, flags);

		if (skb && !in) {
		if (!in) {
		dev_kfree_skb_any(skb);
		return NETDEV_TX_OK;
		}