From: Yuanjun Gong ruc_gongyuanjun@163.com
[ Upstream commit ed96824b71ed67664390890441b229423a25317f ]
in atl1_tso(), it should check the return value of pskb_trim(), and return an error code if an unexpected value is returned by pskb_trim().
Fixes: 401c0aabec4b ("atl1: simplify tx packet descriptor") Signed-off-by: Yuanjun Gong ruc_gongyuanjun@163.com Link: https://lore.kernel.org/r/20230722142511.12448-1-ruc_gongyuanjun@163.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/atheros/atlx/atl1.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/atheros/atlx/atl1.c b/drivers/net/ethernet/atheros/atlx/atl1.c index c8444bcdf5270..02aa6fd8ebc2d 100644 --- a/drivers/net/ethernet/atheros/atlx/atl1.c +++ b/drivers/net/ethernet/atheros/atlx/atl1.c @@ -2113,8 +2113,11 @@ static int atl1_tso(struct atl1_adapter *adapter, struct sk_buff *skb,
real_len = (((unsigned char *)iph - skb->data) + ntohs(iph->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_tcp_all_headers(skb); if (skb->len == hdr_len) { iph->check = 0;