Patch "staging: vt6655: device_rx_srv check sk_buff is NULL" has been added to the 4.1-stable tree

Patch "staging: vt6655: device_rx_srv check sk_buff is NULL" has been added to the 4.1-stable tree

[gregkh]

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

    staging: vt6655: device_rx_srv check sk_buff is NULL

to the 4.1-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:
     staging-vt6655-device_rx_srv-check-sk_buff-is-null.patch
and it can be found in the queue-4.1 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 b5eeed8cb6097c8ea660b6598d36fdbb94065a22 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Sun, 31 May 2015 10:35:28 +0100
Subject: staging: vt6655: device_rx_srv check sk_buff is NULL

From: Malcolm Priestley <tvboxspy@gmail.com>

commit b5eeed8cb6097c8ea660b6598d36fdbb94065a22 upstream.

There is a small chance that pRD->pRDInfo->skb could go NULL
while the interrupt is processing.

Put NULL check on loop to break out.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/staging/vt6655/device_main.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -807,6 +807,10 @@ static int device_rx_srv(struct vnt_priv
 	     pRD = pRD->next) {
 		if (works++ > 15)
 			break;
+
+		if (!pRD->pRDInfo->skb)
+			break;
+
 		if (vnt_receive_frame(pDevice, pRD)) {
 			if (!device_alloc_rx_buf(pDevice, pRD)) {
 				dev_err(&pDevice->pcid->dev,


Patches currently in stable-queue which might be from tvboxspy@gmail.com are

queue-4.1/staging-vt6655-check-ieee80211_bss_conf-bssid-not-null.patch
queue-4.1/staging-vt6656-check-ieee80211_bss_conf-bssid-not-null.patch
queue-4.1/staging-vt6655-device_rx_srv-check-sk_buff-is-null.patch