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authorKoen Vandeputte <koen.vandeputte@ncentric.com>2019-02-20 16:01:10 +0100
committerKoen Vandeputte <koen.vandeputte@ncentric.com>2019-02-22 10:53:42 +0100
commit8f980a8cfec48ea9290c094c6818c125fe05eec7 (patch)
treeec5d2abcf1fdfbcc341f5ddd8b5d68872346df6b /target/linux/generic/backport-4.9/023-7-kaweth-use-skb_cow_head-to-deal-with-cloned-skbs.patch
parent26f864451031da22893ef64fb58502a11f7244c6 (diff)
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kernel: bump 4.9 to 4.9.159
Refreshed all patches. Remove upstreamed: - 023-1-smsc95xx-Use-skb_cow_head-to-deal-with-cloned-skbs.patch - 023-6-ch9200-use-skb_cow_head-to-deal-with-cloned-skbs.patch - 023-7-kaweth-use-skb_cow_head-to-deal-with-cloned-skbs.patch - 050-usb-dwc2-Remove-unnecessary-kfree.patch - 092-netfilter-nf_tables-fix-mismatch-in-big-endian-syste.patch - 272-uapi-if_ether.h-prevent-redefinition-of-struct-ethhd.patch Fixes: - CVE-2018-1000026 Compile-tested on: ar7 Runtime-tested on: none Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Diffstat (limited to 'target/linux/generic/backport-4.9/023-7-kaweth-use-skb_cow_head-to-deal-with-cloned-skbs.patch')
-rw-r--r--target/linux/generic/backport-4.9/023-7-kaweth-use-skb_cow_head-to-deal-with-cloned-skbs.patch43
1 files changed, 0 insertions, 43 deletions
diff --git a/target/linux/generic/backport-4.9/023-7-kaweth-use-skb_cow_head-to-deal-with-cloned-skbs.patch b/target/linux/generic/backport-4.9/023-7-kaweth-use-skb_cow_head-to-deal-with-cloned-skbs.patch
deleted file mode 100644
index 597f25b21d..0000000000
--- a/target/linux/generic/backport-4.9/023-7-kaweth-use-skb_cow_head-to-deal-with-cloned-skbs.patch
+++ /dev/null
@@ -1,43 +0,0 @@
-From 39fba7835aacda65284a86e611774cbba71dac20 Mon Sep 17 00:00:00 2001
-From: Eric Dumazet <edumazet@google.com>
-Date: Wed, 19 Apr 2017 09:59:26 -0700
-Subject: [PATCH] kaweth: use skb_cow_head() to deal with cloned skbs
-
-We can use skb_cow_head() to properly deal with clones,
-especially the ones coming from TCP stack that allow their head being
-modified. This avoids a copy.
-
-Signed-off-by: Eric Dumazet <edumazet@google.com>
-Cc: James Hughes <james.hughes@raspberrypi.org>
-Signed-off-by: David S. Miller <davem@davemloft.net>
----
- drivers/net/usb/kaweth.c | 18 ++++++------------
- 1 file changed, 6 insertions(+), 12 deletions(-)
-
---- a/drivers/net/usb/kaweth.c
-+++ b/drivers/net/usb/kaweth.c
-@@ -803,18 +803,12 @@ static netdev_tx_t kaweth_start_xmit(str
- }
-
- /* We now decide whether we can put our special header into the sk_buff */
-- if (skb_cloned(skb) || skb_headroom(skb) < 2) {
-- /* no such luck - we make our own */
-- struct sk_buff *copied_skb;
-- copied_skb = skb_copy_expand(skb, 2, 0, GFP_ATOMIC);
-- dev_kfree_skb_irq(skb);
-- skb = copied_skb;
-- if (!copied_skb) {
-- kaweth->stats.tx_errors++;
-- netif_start_queue(net);
-- spin_unlock_irq(&kaweth->device_lock);
-- return NETDEV_TX_OK;
-- }
-+ if (skb_cow_head(skb, 2)) {
-+ kaweth->stats.tx_errors++;
-+ netif_start_queue(net);
-+ spin_unlock_irq(&kaweth->device_lock);
-+ dev_kfree_skb_any(skb);
-+ return NETDEV_TX_OK;
- }
-
- private_header = (__le16 *)__skb_push(skb, 2);