Patch "atheros: fix return value check in atl1_tso()" has been added to the 6.4-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    atheros: fix return value check in atl1_tso()

to the 6.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     atheros-fix-return-value-check-in-atl1_tso.patch
and it can be found in the queue-6.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit b90289286e1473bd4ee37990bb533583e3e06ff2
Author: Yuanjun Gong <ruc_gongyuanjun@xxxxxxx>
Date:   Sat Jul 22 22:25:11 2023 +0800

    atheros: fix return value check in atl1_tso()
    
    [ 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@xxxxxxx>
    Link: https://lore.kernel.org/r/20230722142511.12448-1-ruc_gongyuanjun@xxxxxxx
    Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

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;