public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-08-05 16:54:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

brcmfmac: Ensure pointer correctly set if skb data location changes

Browse source 
The incoming skb header may be resized if header space is
insufficient, which might change the data adddress in the skb.
Ensure that a cached pointer to that data is correctly set by
moving assignment to after any possible changes.

Signed-off-by: James Hughes <james.hughes@raspberrypi.org>

Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
James Hughes 2017-04-24 12:40:50 +01:00 • committed by Kalle Valo
parent 9dc7efd397
commit 455a1eb465
1 changed files with 3 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
View file

@ -197,7 +197,7 @@ static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
int ret;
struct brcmf_if *ifp = netdev_priv(ndev);
struct brcmf_pub *drvr = ifp->drvr;
struct ethhdr *eh = (struct ethhdr *)(skb->data);
struct ethhdr *eh;
brcmf_dbg(DATA, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
@ -235,6 +235,8 @@ static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
goto done;
}
eh = (struct ethhdr *)(skb->data);
if (eh->h_proto == htons(ETH_P_PAE))
atomic_inc(&ifp->pend_8021x_cnt);