4.14-stable review patch. If anyone has any objections, please let me know.
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From: Yuanjun Gong ruc_gongyuanjun@163.com
[ Upstream commit 8d01da0a1db237c44c92859ce3612df7af8d3a53 ]
in atl1c_tso_csum, it should check the return value of pskb_trim(), and return an error code if an unexpected value is returned by pskb_trim().
Signed-off-by: Yuanjun Gong ruc_gongyuanjun@163.com Reviewed-by: Simon Horman simon.horman@corigine.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/atheros/atl1c/atl1c_main.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c index 3615c2a06fdad..6f5c7c1401ce0 100644 --- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c +++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c @@ -2001,8 +2001,11 @@ static int atl1c_tso_csum(struct atl1c_adapter *adapter, real_len = (((unsigned char *)ip_hdr(skb) - skb->data) + ntohs(ip_hdr(skb)->tot_len));
- if (real_len < skb->len) - pskb_trim(skb, real_len); + if (real_len < skb->len) { + err = pskb_trim(skb, real_len); + if (err) + return err; + }
hdr_len = (skb_transport_offset(skb) + tcp_hdrlen(skb)); if (unlikely(skb->len == hdr_len)) {