In vector_legacy_rx, to avoid an unexpected result returned by
pskb_trim, we should check the return value of pskb_trim().
Signed-off-by: Ma Ke <make_ruc2...@163.com>
---
arch/um/drivers/vector_kern.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/um/drivers/vector_kern.c b/arch/um/drivers/vector_kern.c
index 131b7cb29576..822a8c0cdcc1 100644
--- a/arch/um/drivers/vector_kern.c
+++ b/arch/um/drivers/vector_kern.c
@@ -890,7 +890,8 @@ static int vector_legacy_rx(struct vector_private *vp)
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
}
- pskb_trim(skb, pkt_len - vp->rx_header_size);
+ if (pskb_trim(skb, pkt_len - vp->rx_header_size))
+ return 0;
skb->protocol = eth_type_trans(skb, skb->dev);
vp->dev->stats.rx_bytes += skb->len;
vp->dev->stats.rx_packets++;
--
2.37.2
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