bb39b8d99a
Update our copies of the brcm2708 patches to the latest rpi-3.10-y rebased against linux-3.10.y stable (3.10.32). This should hopefully make it easier for us in the future to leverage the raspberry/rpi-* branches. Signed-off-by: Florian Fainelli <florian@openwrt.org> SVN-Revision: 39770
30 lines
1.2 KiB
Diff
30 lines
1.2 KiB
Diff
From 51d7ae6f936ea32dedbe423fab97e3281994fe82 Mon Sep 17 00:00:00 2001
|
|
From: P33M <P33M@github.com>
|
|
Date: Thu, 28 Feb 2013 16:52:51 +0000
|
|
Subject: [PATCH 053/174] dwc_otg: fix potential use-after-free case in
|
|
interrupt handler
|
|
|
|
If a transaction had previously aborted, certain interrupts are
|
|
enabled to track error counts and reset where necessary. On IN
|
|
endpoints the host generates an ACK interrupt near-simultaneously
|
|
with completion of transfer. In the case where this transfer had
|
|
previously had an error, this results in a use-after-free on
|
|
the QTD memory space with a 1-byte length being overwritten to
|
|
0x00.
|
|
---
|
|
drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c | 3 ++-
|
|
1 file changed, 2 insertions(+), 1 deletion(-)
|
|
|
|
--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c
|
|
+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c
|
|
@@ -2223,7 +2223,8 @@ int32_t dwc_otg_hcd_handle_hc_n_intr(dwc
|
|
retval |= handle_hc_nak_intr(dwc_otg_hcd, hc, hc_regs, qtd);
|
|
}
|
|
if (hcint.b.ack) {
|
|
- retval |= handle_hc_ack_intr(dwc_otg_hcd, hc, hc_regs, qtd);
|
|
+ if(!hcint.b.chhltd)
|
|
+ retval |= handle_hc_ack_intr(dwc_otg_hcd, hc, hc_regs, qtd);
|
|
}
|
|
if (hcint.b.nyet) {
|
|
retval |= handle_hc_nyet_intr(dwc_otg_hcd, hc, hc_regs, qtd);
|