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31 lines
1.2 KiB
Diff
31 lines
1.2 KiB
Diff
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From 4dc7f09b8becfa35a55430a49d95acf19f996e6b Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
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Date: Wed, 24 Feb 2021 16:18:41 +0100
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Subject: [PATCH] net: broadcom: bcm4908_enet: fix RX path possible mem leak
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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After filling RX ring slot with new skb it's required to free old skb.
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Immediately on error or later in the net subsystem.
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Fixes: 4feffeadbcb2 ("net: broadcom: bcm4908enet: add BCM4908 controller driver")
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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
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Acked-by: Florian Fainelli <f.fainelli@gmail.com>
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Link: https://lore.kernel.org/r/20210224151842.2419-1-zajec5@gmail.com
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Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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---
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drivers/net/ethernet/broadcom/bcm4908_enet.c | 1 +
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1 file changed, 1 insertion(+)
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--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c
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+++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c
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@@ -570,6 +570,7 @@ static int bcm4908_enet_poll(struct napi
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if (len < ETH_ZLEN ||
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(ctl & (DMA_CTL_STATUS_SOP | DMA_CTL_STATUS_EOP)) != (DMA_CTL_STATUS_SOP | DMA_CTL_STATUS_EOP)) {
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+ kfree_skb(slot.skb);
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enet->netdev->stats.rx_dropped++;
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break;
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}
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