This is a note to let you know that I've just added the patch titled
bgmac: fix a missing check for build_skb
to the 4.4-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:
bgmac-fix-a-missing-check-for-build_skb.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f1640c3ddeec12804bc9a21feee85fc15aca95f6 Mon Sep 17 00:00:00 2001
From: wangweidong <wangweidong1@xxxxxxxxxx>
Date: Wed, 13 Jan 2016 11:06:41 +0800
Subject: bgmac: fix a missing check for build_skb
From: wangweidong <wangweidong1@xxxxxxxxxx>
commit f1640c3ddeec12804bc9a21feee85fc15aca95f6 upstream.
when build_skb failed, it may occure a NULL pointer.
So add a 'NULL check' for it.
Signed-off-by: Weidong Wang <wangweidong1@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Amit Pundir <amit.pundir@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/broadcom/bgmac.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -469,6 +469,11 @@ static int bgmac_dma_rx_read(struct bgma
len -= ETH_FCS_LEN;
skb = build_skb(buf, BGMAC_RX_ALLOC_SIZE);
+ if (unlikely(skb)) {
+ bgmac_err(bgmac, "build_skb failed\n");
+ put_page(virt_to_head_page(buf));
+ break;
+ }
skb_put(skb, BGMAC_RX_FRAME_OFFSET +
BGMAC_RX_BUF_OFFSET + len);
skb_pull(skb, BGMAC_RX_FRAME_OFFSET +
Patches currently in stable-queue which might be from wangweidong1@xxxxxxxxxx are
queue-4.4/bgmac-fix-a-missing-check-for-build_skb.patch