From: <gregkh@linuxfoundation.org>
To: subashab@codeaurora.org, alexander.levin@verizon.com,
davem@davemloft.net, gregkh@linuxfoundation.org
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "net: qualcomm: rmnet: Fix leak on transmit failure" has been added to the 4.14-stable tree
Date: Fri, 23 Feb 2018 12:10:51 +0100 [thread overview]
Message-ID: <151938425116192@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
net: qualcomm: rmnet: Fix leak on transmit failure
to the 4.14-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:
net-qualcomm-rmnet-fix-leak-on-transmit-failure.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From foo@baz Fri Feb 23 11:45:09 CET 2018
From: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Date: Tue, 5 Dec 2017 13:41:17 -0700
Subject: net: qualcomm: rmnet: Fix leak on transmit failure
From: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
[ Upstream commit c20a548792f15f8d8e38cd74356301c6db0d241f ]
If a skb in transmit path does not have sufficient headroom to add
the map header, the skb is not sent out and is never freed.
Fixes: ceed73a2cf4a ("drivers: net: ethernet: qualcomm: rmnet: Initial implementation")
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c
+++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c
@@ -166,12 +166,12 @@ static int rmnet_map_egress_handler(stru
if (skb_headroom(skb) < required_headroom) {
if (pskb_expand_head(skb, required_headroom, 0, GFP_KERNEL))
- return RMNET_MAP_CONSUMED;
+ goto fail;
}
map_header = rmnet_map_add_map_header(skb, additional_header_len, 0);
if (!map_header)
- return RMNET_MAP_CONSUMED;
+ goto fail;
if (port->egress_data_format & RMNET_EGRESS_FORMAT_MUXING) {
if (ep->mux_id == 0xff)
@@ -183,6 +183,10 @@ static int rmnet_map_egress_handler(stru
skb->protocol = htons(ETH_P_MAP);
return RMNET_MAP_SUCCESS;
+
+fail:
+ kfree_skb(skb);
+ return RMNET_MAP_CONSUMED;
}
/* Ingress / Egress Entry Points */
Patches currently in stable-queue which might be from subashab@codeaurora.org are
queue-4.14/net-qualcomm-rmnet-fix-leak-on-transmit-failure.patch
reply other threads:[~2018-02-23 11:12 UTC|newest]
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