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- From c9c3b1775f80fa21f5bff874027d2ccb10f5d90c Mon Sep 17 00:00:00 2001
- From: Aleksander Jan Bajkowski <[email protected]>
- Date: Wed, 24 Aug 2022 23:54:08 +0200
- Subject: [PATCH] net: lantiq_xrx200: restore buffer if memory allocation
- failed
- In a situation where memory allocation fails, an invalid buffer address
- is stored. When this descriptor is used again, the system panics in the
- build_skb() function when accessing memory.
- Fixes: 7ea6cd16f159 ("lantiq: net: fix duplicated skb in rx descriptor ring")
- Signed-off-by: Aleksander Jan Bajkowski <[email protected]>
- Signed-off-by: Jakub Kicinski <[email protected]>
- ---
- drivers/net/ethernet/lantiq_xrx200.c | 1 +
- 1 file changed, 1 insertion(+)
- --- a/drivers/net/ethernet/lantiq_xrx200.c
- +++ b/drivers/net/ethernet/lantiq_xrx200.c
- @@ -193,6 +193,7 @@ static int xrx200_alloc_buf(struct xrx20
-
- ch->rx_buff[ch->dma.desc] = alloc(priv->rx_skb_size);
- if (!ch->rx_buff[ch->dma.desc]) {
- + ch->rx_buff[ch->dma.desc] = buf;
- ret = -ENOMEM;
- goto skip;
- }
|
